WO2006031175A1 - Method for separating lignin from black liquor - Google Patents
Method for separating lignin from black liquor Download PDFInfo
- Publication number
- WO2006031175A1 WO2006031175A1 PCT/SE2005/001301 SE2005001301W WO2006031175A1 WO 2006031175 A1 WO2006031175 A1 WO 2006031175A1 SE 2005001301 W SE2005001301 W SE 2005001301W WO 2006031175 A1 WO2006031175 A1 WO 2006031175A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lignin
- washing
- level
- dewatering
- filter cake
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Definitions
- This invention concerns the technical field of lignin separation.
- the present invention relates to a method for lignin separation from spent cooking liquor, called black liquor.
- the invention relates to a lignin product obtainable by the above mentioned method and use of said product.
- the energy surplus can be withdrawn from the process in the form of a solid biofuel and can be exported to e.g. a power station, where the fuel can be used more efficiently than in the recovery boiler of the pulp mill.
- This lignin is also a valuable material for production of "green chemicals”.
- a further alternative to energy production is to use the extracted lignin as chemical feedstock. Further, lignin extraction leaves a black liquor for combustion with a lower thermal value, which in turn leads to a lower load on the recovery boiler. This gives in a short term perspective possibilities for increased pulp production. In the long term perspective lower instrument costs for the recovery boiler are expected.
- the separation method used today is to acidify the black liquor so that the lignin is precipitated in the form of a salt.
- the solid phase is separated from the liquor and can thereafter be cleaned or modified.
- industrial applications in operation today where lignin is separated from black liquor for use as special chemicals.
- One example of such a process is the precipitation of lignin from black liquor by acidification with carbon dioxide.
- the suspension is taken to a storage vessel for conditioning of the precipitate after which the solid lignin is separated and washed (with acidic wash water) on a band filter, and is finally processed to the desired state.
- the separated lignin is to be used for fuel the demands on cleanliness and properties are completely different from those when the application is for use as a special chemical.
- a successful washing of the precipitated lignin is very important, to obtain a lignin fuel with a reasonably low ash content and a low tendency to cause corrosion and to be able to return as much as possible of the cooking chemicals to the chemicals recovery unit.
- Also important is to minimize filtering resistance in order to minimize filtering area as well as promote possibilities to reach a high dry solid content for the lignin production.
- lignin can be separated using small amounts of acid whereby an essentially pure lignin product is obtained which can e.g. be used as fuel or for the production of chemicals. Further it would be desirable that said method achieves a lignin product suitable for use as fuel with reasonably low ash content and a low tendency to cause corrosion.
- the present invention solves one or more of the above problems by providing according to a first aspect a method for separation of lignin, using small amounts of acid whereby an essentially pure lignin product is obtained which can be used as fuel or for the production of chemicals and has a reasonably low ash content and a low tendency to cause corrosion, from black liquor comprising the following steps: a) Precipitation of lignin by acidifying black liquor (which in itself is a lignin suspension) and thereu pon dewatering, b) suspending the lignin filter cake whereupon a second lignin suspension is obtained and adjusting the pH level to approximately the pH level of the washing water of step d) below, c) dewatering of the second lignin suspension, d) addition of washing water and performing a displacement washing at more or less constant conditions without any dramatic gradients in the pH, and e) dewatering of the filter cake produced in step d) into a high dryness and displacement of the remaining washing liquid in said filter cake, whereby
- the present invention also provides a lignin product or an intermediate lignin product obtainable by the method according to the first aspect.
- the present invention also provides according to a third aspect use, preferably for the production of heat or chemicals, of the lignin product or the intermediate lignin product of the second aspect. In this way the lignin may be kept stable during the washing course with a more even result as a result thereof due to avoidance of clogging in the filter cake/medium.
- the method of the first aspect is further illuminated in Figure 2. The method avoids re-dissolution of lignin and subsequent blockage of the filter cake.
- the expression "acidifying” embraces any means for acidify the black liquor.
- the acidifying is performed by adding SO 2 (g) , organic acids, HCI, HNO 3 , carbon dioxide or sulphuric acid (in the form of fresh sulfuric acid or a so called “spent acid” from a chlorine dioxide generator) or mixtures thereof to said black liquor, most preferred by adding carbon dioxide or sulphuric acid.
- dewatering embraces any means for dewatering.
- the dewatering is performed by using centrifugation, a filter press apparatus, a band filter, a rotary filter, such as a drum filter, or a sedimentation tank, or similar equipment, most preferred a filter press apparatus is used.
- the dewatering of step a) is performed in a filter press apparatus where the filter cake may be blown through by gas or a mixture of gases, preferably flue gases, air or vapor, most preferred air or overheated vapor, in order to dispose of the remaining black liquor.
- gases preferably flue gases, air or vapor, most preferred air or overheated vapor
- the pH level is adjusted to below approximately pH 6 in step b), preferably below approximately pH 4.
- the pH level is most preferred a pH from 1 to 3.5.
- the washing water has a pH level of below approximately pH 6, preferably below approximately pH 4.
- the pH level is most preferred a pH from 1 to 3.5.
- the filter cake obtained in step a) is blown through by using gas or a mixture of gases, including e.g. flue gases, air and vapor (which preferably can be air or overheated vapor) before suspending said cake as set out in step b).
- gas or a mixture of gases including e.g. flue gases, air and vapor (which preferably can be air or overheated vapor)
- the pH level adjustment is combined with an adjustment of the ion strength, preferably by using alkali metal ions or multivalent alkaline earth metal ions, most preferred calcium ions.
- the pH level adjustment combined with an adjustment of the ion strength is adapted so that they correspond to the pH level and ion strength of the washing liquid.
- a higher ion strength gives at a given pH lower yield losses of lignin as the lignin becomes more stable.
- the filtrate from the first dewatering stage step a) is re-circulated directly to a recovery system, preferably after re-alkalization.
- the remaining washing liquor in the filter cake in step e) is removed with air or flue gases, preferably flue gases from a recovery boiler, a bark boiler or a lime kiln.
- the washing liquor and a part of the filtrate from the second dewatering in step c) is returned to the re- slurrying stage step b) to further reduce the consumption of acid and washing liquid, i.e. water.
- the method according to the first aspect of the invention solves the above mentioned problems and said method gives a more uniform result without blockage of the filter cake/medium (see Figure 2).
- the central feature of said method is that the changes in the lignin particles/suspension take place before the washing, instead of during the washing process itself.
- the lignin is precipitated from the black liquor by acidification and is then dewatered.
- the filter cake is stirred into a quantity of wash water and a new slurry is obtained.
- the pH can be adjusted to correspond to the level of the wash water, as set out in the method according to the first aspect.
- the suspension is dewatered, wash water is added and a displacement washing can be carried out under more or less constant conditions without any dramatic gradients in pH or ionic strength.
- a displacement washing can be carried out under more or less constant conditions without any dramatic gradients in pH or ionic strength.
- the lignin can be kept stable during the washing process. Changes, if any, take place in the suspension stage instead of during the washing process as set out earlier.
- An alternative procedure for stabilizing the lignin during the washing as set out above earlier as a preferred embodiment of the first aspect of the present invention is, in combination with a pH-decrease, to adjust the ionic strength in the slurry stage, preferably with multivalent alkali metal ions or alkaline earth metal ions (e.g. calcium).
- a higher ionic strength in the suspension stage reduces the lignin yield losses.
- the ionic strength and pH of the wash water preferably essentially correspond to the conditions in the slurry stage to avoid gradients during the washing process. A higher ionic strength in the slurry and in the wash water gives a stable lignin even at high pH- values.
- divalent calcium ions can be introduced into the lignin, which in the combustion of the lignin can bind sulfur in the form of calcium sulphate (Aarsrud et al 1990). If the pH in the slurry stage is kept on the acidic side, sulfur will be released from the black liquor in the form of hydrogen sulfide- and/or sulfide ions (which in turn may end up in hydrogen sulfide (H 2 S)).
- H 2 S hydrogen sulfide
- Such a sulfur separation can be useful in the pulp process in two different ways. If the hydrogen sulfide is e.g. re-absorbed in the cooking liquor before chip impregnation, a higher selectivity can be obtained in the pulp cook.
- the method according to the first aspect of the present invention may further be performed, as set out above, whereby first the lignin is precipitated with carbon dioxide or other suitable acid according to previously known methods.
- the suspension is then dewatered in some form of separation equipment (e.g. some form of filtration equipment, sedimentation tank, centrifugation etc).
- a filter press equipment where the filter cake can be pressed to a high dry content is preferable.
- air is preferably blown through the pressed filter cake in order to remove as much as possible of the remaining black liquor. In this way, the acid consumption and hydrogen sulfide formation in the subsequent re-slurry stage can be considerably reduced.
- the filtrate from the first dewatering stage is preferably re-circulated directly to the recovery system, possibly after re-alkalization.
- the filter cake is again made into a slurry in a tank or similar vessel preferably equipped with a suitable stirring device and also preferably equipped with an exhaust to take care of the hydrogen sulfide formed.
- the new slurry is then adjusted to the desired pH and preferably also the desired ionic strength and dewatered in another, second, filter press (or apparatus of similar type or apparatus which gives a similar result as set out earlier above) where the cake is pressed to the highest possible dry content before, in the same (or similar) equipment, being washed by displacement washing, where the wash water has the same conditions as the suspension with regard to pH and ionic strength.
- the cake is pressed to a high dry content and the remaining washing liquor in the filter cake is removed with air or flue gases from e.g. a recovery boiler or bark boiler.
- air or flue gases from e.g. a recovery boiler or bark boiler.
- the latter also makes it possible to obtain a drier lignin.
- the washing liquor and a part of the filtrate from the second filtration can preferably be returned to the re-slurrying stage to further reduce the consumption of acid and water.
- Fig. 1 shows sodium and lignin concentrations and pH-profile for the washing of a lignin filtered directly after the precipitation stage.
- Fig. 2 shows the method according to the first aspect, incorporating a modified washing process, whereby lignin is precipitated from black liquor.
- Fig. 3 shows material balance for the present method according to the first aspect.
- hot flue gases can be used.
- the method of the first aspect of the invention has been studied experimentally on a laboratory scale with good results, since the pH in the suspension after re-slurrying and the pH in the wash water have been kept below 4. Under these conditions, it has been possible to carry out the washing without blockage and with a very clean lignin as a result.
- the sodium contents in the washed lignin have varied between 0.005 per cent by weight (for pH 2 in the wash water and suspension) and 0.09 per cent by weight (for pH 3.5 in the wash water and suspension). At a pH of 4 and above in the wash water, blockages were again observed in the filter cake/medium, probably because of re-dissolved lignin which markedly reduced the flow of the wash water. Even in these cases, the sodium contents in the washed lignin could be reduced to ca. 0.25%. A number of test series have been carried out, with reproducible res ults.
- Example 3 A further example is here given of an application of the method according to the first aspect of the invention described above (see also Figure 3).
- 30% of the black liquor is taken from the evaporation at a dry content of 30%.
- This is acidified to pH 10 at room temperature with carbon dioxide (120 t/d) with stirring at a temperature of 80 0 C.
- the resulting slurry is dewatered in a filter press equipment, after which the filter cake is pressed and blown with air to a dry content of ca. 70%.
- the filtrate is returned to the recovery system of the mill.
- the filter cake is converted into a slurry in re-circulated washing liquor from the other filter press and is acidified further to pH 4 with sulfuric acid (96%, 12 m ⁇ /d).
- the slurry thus obtained is dewatered in a filter press and pressed.
- the filtrate is returned to the mill's recovery system. Wash water is added and the lignin is washed by displacement washing (541 ton/d washing liquor at pH 4). After blowing with air, 244 t/d lignin (on a dry basis) with a sufficient cleanliness for use as a biofuel is withdrawn from the process at a dry content of 70 %.
- a comparison with a conventional method for removing lignin shows that the acid consumption (CO 2 and H 2 SO 4 ) and water consumption in the ideal case lie at the same levels.
- a significant saving in the amount of added sulfuric acid can be achieved through recirculation of filtrate and washing liquor to the slurry stage.
- the fact that the amount of wash water may seem small in the example is due to the choice of more suitable equipment and not to the new method in itself. Higher dry contents can be reached in the dewatering with a filter press than with e.g. a band filter.
- the great difference with the new method according to the first aspect is that it offers a more uniform dewatering, which gives a considerably cleaner product. Additionally a significant amount of acid can be deducted when using said method.
Abstract
Description
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Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05778944T ATE543947T2 (en) | 2004-09-14 | 2005-09-08 | METHOD FOR SEPARATING LIGNIN FROM BLACK LIQUE |
CA2578382A CA2578382C (en) | 2004-09-14 | 2005-09-08 | Method for separating lignin from black liquor |
BRPI0515247-0A BRPI0515247A (en) | 2004-09-14 | 2005-09-08 | method to separate lignin from black liquor |
US11/659,733 US8486224B2 (en) | 2004-09-14 | 2005-09-08 | Method for separating lignin from black liquor |
JP2007531127A JP5002458B2 (en) | 2004-09-14 | 2005-09-08 | Method for separating lignin from black liquor |
ES05778944.8T ES2381915T5 (en) | 2004-09-14 | 2005-09-08 | Method to separate lignin from black liquor |
EP05778944.8A EP1794363B2 (en) | 2004-09-14 | 2005-09-08 | Method for separating lignin from black liquor |
US12/071,436 US8172981B2 (en) | 2004-09-14 | 2008-02-21 | Separating lignin from black liquor by precipitation, suspension and separation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0402201A SE0402201D0 (en) | 2004-09-14 | 2004-09-14 | Method for separating lignin from black liquor |
SE0402201-8 | 2004-09-14 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/659,733 A-371-Of-International US8486224B2 (en) | 2004-09-14 | 2005-09-08 | Method for separating lignin from black liquor |
US12/071,436 Continuation-In-Part US8172981B2 (en) | 2004-09-14 | 2008-02-21 | Separating lignin from black liquor by precipitation, suspension and separation |
Publications (1)
Publication Number | Publication Date |
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WO2006031175A1 true WO2006031175A1 (en) | 2006-03-23 |
Family
ID=33157528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2005/001301 WO2006031175A1 (en) | 2004-09-14 | 2005-09-08 | Method for separating lignin from black liquor |
Country Status (11)
Country | Link |
---|---|
US (1) | US8486224B2 (en) |
EP (1) | EP1794363B2 (en) |
JP (1) | JP5002458B2 (en) |
AT (1) | ATE543947T2 (en) |
BR (1) | BRPI0515247A (en) |
CA (1) | CA2578382C (en) |
ES (1) | ES2381915T5 (en) |
PT (1) | PT1794363E (en) |
SE (1) | SE0402201D0 (en) |
WO (1) | WO2006031175A1 (en) |
ZA (1) | ZA200701568B (en) |
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Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE0402437D0 (en) * | 2004-10-07 | 2004-10-07 | Stfi Packforsk Ab | Method for separating lignin from a lignin containing liquid / slurry |
CL2010001609A1 (en) * | 2010-12-29 | 2011-03-18 | Univ De Concepcion 50% | Process for obtaining tall oil util that comprises the reaction between a solution of sodium sesquisulfate and tall oil soap. |
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JP6662423B1 (en) * | 2018-09-06 | 2020-03-11 | 日本製紙株式会社 | How to separate lignin |
JPWO2021256306A1 (en) * | 2020-06-19 | 2021-12-23 | ||
US20230312929A1 (en) * | 2022-03-29 | 2023-10-05 | The Williamette Valley Company Llc | Adhesive mixture having an organic slurry dispersion and process for manufacture thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB664811A (en) * | 1944-08-21 | 1952-01-16 | Smith Paper Mills Ltd Howard | Improvements in the recovery of lignin from black liquor |
US3895996A (en) * | 1972-08-01 | 1975-07-22 | Betz Laboratories | Beneficiation of lignin solutions and pulp mill wastes |
WO1990006964A1 (en) * | 1988-12-12 | 1990-06-28 | Holmen Lignotech Ab | A lignin preparation and a method for its manufacture |
Family Cites Families (59)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2371136A (en) * | 1945-03-13 | Lignin compounds and process of | ||
US1394151A (en) * | 1914-03-28 | 1921-10-18 | Edward J Koehler | Process of treating waste sulfite liquor and compound obtained therefrom |
US1606338A (en) * | 1921-05-19 | 1926-11-09 | Bradley Mckeefe Corp | Treatment of black liquor |
US1981176A (en) * | 1930-10-22 | 1934-11-20 | Guy C Howard | Lignin derivatives and process of making same |
US2248978A (en) * | 1938-02-14 | 1941-07-15 | American Cyanamid & Chem Corp | Delignification of black liquor soap |
US2470764A (en) * | 1943-09-23 | 1949-05-24 | Dunbar Thomas Leonidas | Method of treating waste sulfite liquor |
US2406867A (en) * | 1943-12-31 | 1946-09-03 | Smith Paper Mills Ltd Howard | Method of treating lignocellulosic material |
US2464828A (en) * | 1944-02-22 | 1949-03-22 | West Virginia Pulp & Paper Co | Method of producing lignin from black liquor |
US2453213A (en) * | 1945-05-10 | 1948-11-09 | Tlmber Engineering Company | Process of treating lignin residues |
US2541058A (en) * | 1948-06-16 | 1951-02-13 | Wood Conversion Co | Processing of lignocellulose materials |
US2671751A (en) * | 1948-12-03 | 1954-03-09 | Givaudan Corp | Process for forming a lignin concentrate |
US2576418A (en) * | 1948-12-06 | 1951-11-27 | Marathon Corp | Lignin compounds and method for making same |
US2801168A (en) * | 1949-04-02 | 1957-07-30 | Goddard Harold Oliver | Waste sulphite liquor recovery |
US2680113A (en) * | 1949-12-22 | 1954-06-01 | Svenska Cellulosaforeningens C | Method of producing water-soluble products from black liquor lignin |
US2623040A (en) † | 1950-07-06 | 1952-12-23 | West Virginia Pulp & Paper Co | Method of coagulating colloidal lignates in aqueous dispersions |
US2727028A (en) * | 1951-03-14 | 1955-12-13 | Lignosol Chemicals Ltd | Treatment of waste sulphite liquor and products thereof |
USRE24213E (en) * | 1952-06-07 | 1956-09-11 | Ammonia recovery | |
US2772965A (en) * | 1953-06-02 | 1956-12-04 | Rayonier Inc | Recovery of chemicals in wood pulp preparation |
US2949448A (en) * | 1953-06-23 | 1960-08-16 | Aschaffenburger Zellstoffwerke | Neutralizing lignin-containing liquors |
FR1112129A (en) * | 1953-11-19 | 1956-03-08 | Inventa Ag | Process for the preparation of lignin from black liquors |
US2994633A (en) * | 1958-08-21 | 1961-08-01 | Crossett Company | Process for separating lignin solids from used neutral sulfite pulping liquors |
US2976273A (en) * | 1958-09-10 | 1961-03-21 | West Virginia Pulp & Paper Co | Treatment of kraft black liquor and product |
US2997466A (en) * | 1958-11-04 | 1961-08-22 | West Virginia Pulp & Paper Co | Decantation of lignin |
US3048576A (en) * | 1958-11-04 | 1962-08-07 | West Virginia Pulp & Paper Co | Continuous acidulation and coagulation of lignin in black liquor |
US3148177A (en) * | 1961-07-24 | 1964-09-08 | Sulphite Products Corp | Treatment of spent sulfite liquor |
US3428520A (en) * | 1965-08-12 | 1969-02-18 | Scott Paper Co | Pulping process with lignin recovery |
US3509121A (en) * | 1967-09-06 | 1970-04-28 | Dryden Chem Ltd | Separation of liquor materials by diffusion |
US3546200A (en) * | 1968-06-18 | 1970-12-08 | Union Camp Corp | Lignin precipitation from black liquor in the presence of chloro,bromo or nitro containing hydrocarbons |
US3806403A (en) * | 1972-03-27 | 1974-04-23 | Nyanza Inc | Process for treating black liquor to precipitate organic materials therefrom |
US3829388A (en) * | 1972-08-01 | 1974-08-13 | Betz Laboratories | Beneficiation of lignin solutions and pulp mill wastes |
US4155804A (en) * | 1975-03-17 | 1979-05-22 | International Telephone And Telegraph Corporation | Removal of volatile organic components from spent sulfite effluent |
US4111928A (en) * | 1975-08-28 | 1978-09-05 | Holsopple Dale B | Method of separating lignin and making epoxide-lignin |
US4470876A (en) * | 1982-07-22 | 1984-09-11 | Beaupre Marc F | Kraft overload recovery process |
US4493797A (en) * | 1983-12-22 | 1985-01-15 | Domtar Inc | Apparatus and method involving supercritical fluid extraction |
US5788812A (en) * | 1985-11-05 | 1998-08-04 | Agar; Richard C. | Method of recovering furfural from organic pulping liquor |
US4764596A (en) * | 1985-11-05 | 1988-08-16 | Repap Technologies Inc. | Recovery of lignin |
FI77063B (en) * | 1986-12-17 | 1988-09-30 | Ahlstroem Oy | FOERFARANDE FOER EFFEKTIVERING AV FIBERSUSPENSIONSTVAETT. |
US4740591A (en) * | 1987-04-13 | 1988-04-26 | Westvaco Corporation | Lignin by-products of paper-making process |
US5188673A (en) * | 1987-05-15 | 1993-02-23 | Clausen Edgar C | Concentrated sulfuric acid process for converting lignocellulosic materials to sugars |
FI883934A (en) * | 1987-08-27 | 1989-02-28 | Holmens Bruk Ab | SAETT ATT GENOMFOERA EN SULFATCELLULOSAPROCESS OCH EN ANLAEGGNING FOER GENOMFOERING AV SAETTET. |
US5034094A (en) * | 1987-11-06 | 1991-07-23 | Kurple Kenneth R | Method of converting inorganic materials from kraft pulping liquor into pulping chemicals without passing them through a recovery furnace |
US5288857A (en) * | 1988-12-12 | 1994-02-22 | Ligno Tech Sweden Ab | Lignin preparation and method for its manufacture |
CA1335976C (en) * | 1989-05-31 | 1995-06-20 | Mahmoud Kamran Azarniouch | Recovery of naoh and other values from spent liquors and bleach plant effluents |
US5635024A (en) * | 1993-08-20 | 1997-06-03 | Bountiful Applied Research Corporation | Process for separating lignins and dissolved organic compounds from kraft spent liquor |
US5478366A (en) * | 1994-09-28 | 1995-12-26 | The University Of British Columbia | Pumpable lignin fuel |
JP3024526B2 (en) * | 1995-10-11 | 2000-03-21 | 日本製紙株式会社 | Lignin composition, method for producing the same, and cement dispersant using the same |
US5728264A (en) * | 1995-10-25 | 1998-03-17 | Union Camp Patent Holding, Inc. | Avoidance of salt scaling by acidic pulp washing process |
US5773590A (en) * | 1997-04-08 | 1998-06-30 | Betzdearborn Inc. | Methods of separating lignin solids and black liquor from tall oil fatty acids |
US5777086A (en) * | 1997-05-12 | 1998-07-07 | Thermo Fibergen, Inc. | Method of recovering lignin from pulp and paper sludge |
FI104335B1 (en) * | 1997-10-13 | 1999-12-31 | Poeyry Jaakko & Co Oy | Process for the recovery of alkali and energy from silicate-containing black liquor |
AU6265699A (en) * | 1998-09-24 | 2000-04-10 | Kenneth R. Kurple | Pulping process without a recovery furnace |
US6172204B1 (en) * | 1999-06-04 | 2001-01-09 | Regents Of The University Of Minnesota | Compositions based on lignin derivatives |
US6420533B1 (en) * | 2000-08-04 | 2002-07-16 | Gene E. Lightner | Method to separate sodium from lignins and produce a sodium containing solution for recycle |
US20020129910A1 (en) * | 2001-03-14 | 2002-09-19 | Lightner Gene E. | Separation of black liquor to produce lignins substantially free of sodium |
US20030221804A1 (en) * | 2002-06-03 | 2003-12-04 | Lightner Gene E. | Lignins derived from black liquor |
AU2003256788A1 (en) | 2002-07-25 | 2004-02-23 | Coffin World Water Systems | Apparatus and method for treating black liquor |
US8172981B2 (en) * | 2004-09-14 | 2012-05-08 | Lignoboost Ab | Separating lignin from black liquor by precipitation, suspension and separation |
SE0402437D0 (en) * | 2004-10-07 | 2004-10-07 | Stfi Packforsk Ab | Method for separating lignin from a lignin containing liquid / slurry |
WO2009021216A2 (en) * | 2007-08-08 | 2009-02-12 | Bountiful Applied Research Corp. | Lignin dewatering process |
-
2004
- 2004-09-14 SE SE0402201A patent/SE0402201D0/en unknown
-
2005
- 2005-09-08 EP EP05778944.8A patent/EP1794363B2/en active Active
- 2005-09-08 AT AT05778944T patent/ATE543947T2/en active
- 2005-09-08 ZA ZA200701568A patent/ZA200701568B/en unknown
- 2005-09-08 CA CA2578382A patent/CA2578382C/en not_active Expired - Fee Related
- 2005-09-08 WO PCT/SE2005/001301 patent/WO2006031175A1/en active Application Filing
- 2005-09-08 US US11/659,733 patent/US8486224B2/en active Active
- 2005-09-08 BR BRPI0515247-0A patent/BRPI0515247A/en not_active Application Discontinuation
- 2005-09-08 ES ES05778944.8T patent/ES2381915T5/en active Active
- 2005-09-08 PT PT05778944T patent/PT1794363E/en unknown
- 2005-09-08 JP JP2007531127A patent/JP5002458B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB664811A (en) * | 1944-08-21 | 1952-01-16 | Smith Paper Mills Ltd Howard | Improvements in the recovery of lignin from black liquor |
US3895996A (en) * | 1972-08-01 | 1975-07-22 | Betz Laboratories | Beneficiation of lignin solutions and pulp mill wastes |
WO1990006964A1 (en) * | 1988-12-12 | 1990-06-28 | Holmen Lignotech Ab | A lignin preparation and a method for its manufacture |
Non-Patent Citations (2)
Title |
---|
DAVY MF ET AL: "Economic evaluation of black liquor treatment processes for incremental kraft pulp production.", 83RD ANNUAL MEETING OF THE TECHNICAL SECTION OF CANADIAN PULP AND PAPER ASSOCIATION. PART A., 28 January 1997 (1997-01-28) - 31 January 1997 (1997-01-31), pages 1 - 8, XP002993835 * |
OHMAN F ET AL: "Filtration properties of lignin precipitated from black liquor.", INTERNATIONAL CHEMICAL RECOVERY CONFERENCE., 11 June 2001 (2001-06-11) - 14 June 2001 (2001-06-14), pages 19 - 25, XP002993836 * |
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WO2007120091A1 (en) * | 2006-03-16 | 2007-10-25 | Stfi-Packforsk Ab | Method for separating polymeric pentose from a liquid/slurry |
WO2008079072A1 (en) | 2006-12-22 | 2008-07-03 | Kiram Ab | Method for recovering a low sodium content lignin fuel from black liquor |
US8252141B2 (en) * | 2006-12-22 | 2012-08-28 | Andritz Oy | Method for recovering a low sodium content lignin fuel from black liquor |
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WO2015083092A1 (en) | 2013-12-05 | 2015-06-11 | Stora Enso Oyj | A composition in the form of a lignin polyol, a method for the production thereof and use thereof |
US9243365B2 (en) | 2013-12-20 | 2016-01-26 | Georgia-Pacific Chemicals Llc | Release aids with adjustable cloud points for creping processes |
US9587114B2 (en) | 2014-04-02 | 2017-03-07 | Georgia-Pacific Chemicals Llc | Methods for making lignocellulose composite products with oxidative binders and complexed metal catalyst |
US9587115B2 (en) | 2014-04-02 | 2017-03-07 | Georgia-Pacific Chemicals Llc | Methods for making lignocellulose composite products |
US9617427B2 (en) | 2014-04-02 | 2017-04-11 | Georgia-Pacific Chemicals Llc | Methods for making lignocellulose composite products with oxidative binders and encapsulated catalyst |
CN106164371A (en) * | 2014-04-03 | 2016-11-23 | 安德里兹公司 | For processing the method for the useless cleaning solution of lignin recovery technique |
WO2016001490A1 (en) | 2014-07-04 | 2016-01-07 | Metsä Fibre Oy | Method of utilizing lignin contained in black liquor |
US9617393B2 (en) | 2014-12-22 | 2017-04-11 | Innventia Ab | Method of producing lignin with reduced amount of odorous substances |
US10439204B2 (en) | 2015-03-06 | 2019-10-08 | Rise Innventia Ab | Electrode active coating for a lithium-ion battery and method of production therefore |
US10858554B2 (en) | 2015-04-15 | 2020-12-08 | Fpinnovations | High residual content (HRC) kraft/soda lignin as an ingredient in wood adhesives |
WO2016165023A1 (en) | 2015-04-15 | 2016-10-20 | Fpinnovations | High residual content (hrc) kraft/soda lignin as an ingredient in wood adhesives |
KR20180014024A (en) * | 2015-05-29 | 2018-02-07 | 유피엠-키멘 코포레이션 | Method and apparatus for cleaning crude lignin, soluble carbohydrate-containing fractions, solid fractions and uses thereof |
KR102651027B1 (en) | 2015-05-29 | 2024-03-25 | 유피엠-키멘 코포레이션 | Method and apparatus for washing crude lignin, soluble carbohydrate-containing fractions, solid fractions and uses thereof |
EP3795575A1 (en) * | 2015-05-29 | 2021-03-24 | UPM-Kymmene Corporation | Method and apparatus for washing a crude lignin |
CN107667111A (en) * | 2015-05-29 | 2018-02-06 | 芬欧汇川集团 | The method and apparatus for washing rugose wood element, the cut containing soluble-carbohydrate, solid fraction and its application |
WO2016193536A1 (en) * | 2015-05-29 | 2016-12-08 | Upm-Kymmene Corporation | A method and an apparatus for washing a crude lignin, a soluble carbohydrate containing fraction, a solid fraction and their use |
US11267837B2 (en) | 2015-05-29 | 2022-03-08 | Upm-Kymmene Corporation | Method and an apparatus for washing a crude lignin, a soluble carbohydrate containing fraction, a solid fraction and their use |
RU2710376C2 (en) * | 2015-05-29 | 2019-12-26 | ЮПМ-Кюммене Корпорейшн | Method and apparatus for washing green lignin, comprising soluble carbohydrates fraction, solid fraction and use thereof |
AU2016272205B2 (en) * | 2015-05-29 | 2020-09-10 | Upm-Kymmene Corporation | A method and an apparatus for washing a crude lignin, a soluble carbohydrate containing fraction, a solid fraction and their use |
EP4234652A2 (en) | 2015-07-03 | 2023-08-30 | Stora Enso Oyj | A method for increasing the reactivity of lignin, a resin composition comprising said lignin and use of said resin composition |
WO2017006215A1 (en) | 2015-07-03 | 2017-01-12 | Stora Enso Oyj | A method for increasing the reactivity of lignin, a resin composition comprising said lignin and use of said resin composition |
US10239904B2 (en) | 2015-10-13 | 2019-03-26 | Valmet Technologies Oy | Method for producing solid lignin |
EP3156409A1 (en) | 2015-10-13 | 2017-04-19 | Valmet Technologies Oy | Method for producing solid lignin |
US10717873B2 (en) | 2016-03-21 | 2020-07-21 | Stora Enso Oyj | Liquid lignin composition, lignin-based resin, and method of increasing the solubility of lignin |
US10882879B2 (en) | 2016-06-22 | 2021-01-05 | Valmet Ab | Method of producing lignin with reduced amount of odorous substances |
WO2018004427A1 (en) * | 2016-06-22 | 2018-01-04 | Valmet Ab | Method of producing lignin with reduced amount of odorous substances |
WO2018004447A1 (en) * | 2016-07-01 | 2018-01-04 | Ren Fuel K2B Ab | Ultrapure kraft lignin composition |
US11130257B2 (en) | 2016-07-11 | 2021-09-28 | Stora Enso Oyj | Lignin-based phenolic resin |
EP3559014A4 (en) * | 2016-12-21 | 2020-07-15 | Teknologian Tutkimuskeskus VTT Oy | Method for producing reactive lignin |
US11821047B2 (en) | 2017-02-16 | 2023-11-21 | Apalta Patent OÜ | High pressure zone formation for pretreatment |
WO2018215922A1 (en) | 2017-05-23 | 2018-11-29 | Stora Enso Oyj | Process for preparing a solution of lignin in an aqueous medium |
WO2019016636A1 (en) | 2017-07-18 | 2019-01-24 | Stora Enso Oyj | Liquid lignin composition comprising lignin, water, alkali and urea |
CN110869419A (en) * | 2017-07-31 | 2020-03-06 | 东丽株式会社 | Method for producing lignin |
US11504877B2 (en) | 2017-12-22 | 2022-11-22 | Stora Enso Oyj | Modified wood product and a process for producing said product |
EP4241949A2 (en) | 2018-04-20 | 2023-09-13 | Stora Enso Oyj | Process for preparing a bonding resin |
WO2019202475A1 (en) | 2018-04-20 | 2019-10-24 | Stora Enso Oyj | Process for preparing a bonding resin |
WO2019238783A1 (en) * | 2018-06-15 | 2019-12-19 | Papierholz Austria Gmbh | Process for isolating lignin from an alkaline process stream |
US11807657B2 (en) | 2018-06-15 | 2023-11-07 | Papierholz Austria Gmbh | Process for isolating lignin from an alkaline process stream |
EA039578B1 (en) * | 2018-06-15 | 2022-02-11 | Папирхольц Аустриа Гмбх | Process for isolating lignin from an alkaline process stream |
WO2020013112A1 (en) | 2018-07-09 | 2020-01-16 | 日本製紙株式会社 | Organic anti-shrinkage agent for lead storage battery |
US11251434B2 (en) | 2018-07-09 | 2022-02-15 | Nippon Paper Industries Co., Ltd. | Organic expander for lead storage battery |
WO2020013752A1 (en) * | 2018-07-12 | 2020-01-16 | Suncarbon Ab | Lignin purification |
WO2020050767A1 (en) | 2018-09-07 | 2020-03-12 | Valmet Ab | Method of producing lignin with reduced amount of odorous substances |
DE102018220946A1 (en) | 2018-12-04 | 2020-06-04 | Suncoal Industries Gmbh | Particulate carbon materials and methods for their separation |
WO2020115143A1 (en) | 2018-12-04 | 2020-06-11 | Suncoal Industries Gmbh | Particulate carbon materials and method for the separation thereof |
WO2020169809A2 (en) | 2019-02-21 | 2020-08-27 | Suncoal Industries Gmbh | Method for reducing the odour in particle-forming carbon materials |
CN114364841B (en) * | 2019-06-03 | 2023-10-13 | 苏扎诺有限公司 | Process for extracting lignin from black liquor |
CN114364841A (en) * | 2019-06-03 | 2022-04-15 | 苏扎诺有限公司 | Process for extracting lignin from black liquor |
WO2020243805A1 (en) | 2019-06-03 | 2020-12-10 | Suzano S.A. | Processes for extracting lignin from black liquor |
WO2020261087A1 (en) | 2019-06-24 | 2020-12-30 | Stora Enso Oyj | Process for preparing a bonding resin |
US11692000B2 (en) | 2019-12-22 | 2023-07-04 | Apalta Patents OÜ | Methods of making specialized lignin and lignin products from biomass |
WO2022043470A1 (en) | 2020-08-26 | 2022-03-03 | Suncoal Industries Gmbh | Modified fine particulate carbon materials and method for producing same |
WO2022190829A1 (en) | 2021-03-08 | 2022-09-15 | 日本製紙株式会社 | Organic anti-shrinkage agent for lead-acid batteries |
WO2023277776A1 (en) | 2021-06-30 | 2023-01-05 | Valmet Ab | Method and system for lignin production |
WO2023277774A1 (en) | 2021-06-30 | 2023-01-05 | Valmet Ab | Method and system for producing lignin |
WO2023015325A1 (en) | 2021-08-06 | 2023-02-09 | Lignorganic (Pty) Ltd | System and method for obtaining lignin and carboxylic acid from byproducts of pulping processes |
WO2023199201A1 (en) * | 2022-04-11 | 2023-10-19 | Stora Enso Oyj | A method for purifying lignin |
SE2230107A1 (en) * | 2022-04-11 | 2023-10-12 | Stora Enso Oyj | A method for purifying lignin by removing inorganic impurities from black liquor |
SE545761C2 (en) * | 2022-04-11 | 2024-01-02 | Stora Enso Oyj | A method for purifying lignin by removing inorganic impurities from black liquor |
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CA2578382C (en) | 2013-07-02 |
US8486224B2 (en) | 2013-07-16 |
BRPI0515247A (en) | 2008-07-15 |
JP2008513549A (en) | 2008-05-01 |
EP1794363B1 (en) | 2012-02-01 |
EP1794363B2 (en) | 2017-01-18 |
JP5002458B2 (en) | 2012-08-15 |
ES2381915T5 (en) | 2017-09-01 |
EP1794363A1 (en) | 2007-06-13 |
ZA200701568B (en) | 2008-08-27 |
ES2381915T3 (en) | 2012-06-01 |
SE0402201D0 (en) | 2004-09-14 |
CA2578382A1 (en) | 2006-03-23 |
US20080047674A1 (en) | 2008-02-28 |
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