CA2196981A1 - Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates - Google Patents

Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates

Info

Publication number
CA2196981A1
CA2196981A1 CA002196981A CA2196981A CA2196981A1 CA 2196981 A1 CA2196981 A1 CA 2196981A1 CA 002196981 A CA002196981 A CA 002196981A CA 2196981 A CA2196981 A CA 2196981A CA 2196981 A1 CA2196981 A1 CA 2196981A1
Authority
CA
Canada
Prior art keywords
zinc sulfide
conversion solution
concentration
ore
znso4
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002196981A
Other languages
French (fr)
Other versions
CA2196981C (en
Inventor
N. Robert O'brien
Ernest Peters
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
R&O Mining Processing Ltd
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2196981A1 publication Critical patent/CA2196981A1/en
Application granted granted Critical
Publication of CA2196981C publication Critical patent/CA2196981C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/06—Sulfating roasting
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/20—Obtaining zinc otherwise than by distilling
    • C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/44—Treatment or purification of solutions, e.g. obtained by leaching by chemical processes
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

In a hydrometallurgical process for converting zinc sulfide in an ore containing zinc sulfide, the zinc sulfide being chemically converted at elevated temperatures to ZnSO4.xH2O which crystallizes substantially in the monohydrate form as ZnSO4.H2O in a conversion solution having a high concentration of H2SO4, the improvement comprises: (i) selecting an ore which contains both zinc sulfide and copper sulfide, the ore containing greater than 1% by weight of copper, (ii) contacting the zinc sulfide/copper sulfide ore with a conversion solution comprises a concentration of sulfuric acid selected from the range of about 45% by weight up to about 70% by weight of the conversion solution and at the elevated temperature in the range of 90°C to less than boiling point of the conversion solution for the selected concentration of sulfuric acid; (iii) ensuring a reducing condition in the conversion solution, by virtue of the concentration of H2SO4, temperature, and maintenance of atmospheric pressure, to produce continuously sufficient H2S to preclude oxidation of the copper sulfide; (iv) maintaining the conversion solution a the elevated temperature and at the range of concentration of the sulfuric acid to ensure continued formation of the crystals of ZnSO4.H2O until substantially all available ZnS is chemically converted; and (v) separating the ZnSO4.H2O crystals and remaining solids of the ore from the conversion solution.
CA002196981A 1994-08-15 1995-08-09 Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates Expired - Lifetime CA2196981C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US29020694A 1994-08-15 1994-08-15
US08/290,206 1994-08-15
PCT/CA1995/000473 WO1996005329A1 (en) 1994-08-15 1995-08-09 Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates

Publications (2)

Publication Number Publication Date
CA2196981A1 true CA2196981A1 (en) 1996-02-22
CA2196981C CA2196981C (en) 2004-11-23

Family

ID=23114969

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002196981A Expired - Lifetime CA2196981C (en) 1994-08-15 1995-08-09 Hydrometallurgical conversion of zinc sulfide to sulfate from zinc sulfide containing ores and concentrates

Country Status (16)

Country Link
US (1) US5711922A (en)
EP (1) EP0776378B1 (en)
JP (1) JPH10504060A (en)
CN (1) CN1045625C (en)
AT (1) ATE175726T1 (en)
AU (1) AU698137B2 (en)
BR (1) BR9508598A (en)
CA (1) CA2196981C (en)
CZ (1) CZ45297A3 (en)
DE (1) DE69507308T2 (en)
ES (1) ES2130630T3 (en)
FI (1) FI970628A (en)
NO (1) NO970693L (en)
PL (1) PL318754A1 (en)
RU (1) RU2135610C1 (en)
WO (1) WO1996005329A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2123417B1 (en) * 1996-04-25 1999-12-01 Consejo Superior Investigacion HYDROMETALLURGICAL PROCEDURE FOR THE RECOVERY OF COPPER FROM SULFURATED MINERALS.
CA2433277C (en) * 2003-06-25 2008-02-26 Clean-Flo Gas Filtration Systems (1987) Ltd. Gas purification medium for removing sulfides from gaseous streams
US9275052B2 (en) * 2005-01-19 2016-03-01 Amazon Technologies, Inc. Providing annotations of a digital work
US8131647B2 (en) * 2005-01-19 2012-03-06 Amazon Technologies, Inc. Method and system for providing annotations of a digital work
US8352449B1 (en) 2006-03-29 2013-01-08 Amazon Technologies, Inc. Reader device content indexing
US9672533B1 (en) 2006-09-29 2017-06-06 Amazon Technologies, Inc. Acquisition of an item based on a catalog presentation of items
US8725565B1 (en) 2006-09-29 2014-05-13 Amazon Technologies, Inc. Expedited acquisition of a digital item following a sample presentation of the item
US7865817B2 (en) 2006-12-29 2011-01-04 Amazon Technologies, Inc. Invariant referencing in digital works
US9665529B1 (en) 2007-03-29 2017-05-30 Amazon Technologies, Inc. Relative progress and event indicators
US8341210B1 (en) 2007-05-21 2012-12-25 Amazon Technologies, Inc. Delivery of items for consumption by a user device
FI119819B (en) * 2007-09-07 2009-03-31 Outotec Oyj Method for improving the quality of copper concentrate
US8423889B1 (en) 2008-06-05 2013-04-16 Amazon Technologies, Inc. Device specific presentation control for electronic book reader devices
US9087032B1 (en) 2009-01-26 2015-07-21 Amazon Technologies, Inc. Aggregation of highlights
US8832584B1 (en) 2009-03-31 2014-09-09 Amazon Technologies, Inc. Questions on highlighted passages
US8692763B1 (en) 2009-09-28 2014-04-08 John T. Kim Last screen rendering for electronic book reader
CN115305347A (en) * 2022-08-27 2022-11-08 苏州金之翼新材料科技有限公司 Method for preparing zinc ferrite from neodymium iron boron waste

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA864455A (en) * 1971-02-23 Fuchs Warren Process of leaching sulfide-containing materials with hot, strong sulfuric acid
CA876034A (en) * 1971-07-20 G. Matthew Ian Hydrometallurgical treatment of siliceous zinc ores
US1435699A (en) * 1919-09-30 1922-11-14 Niels C Christensen Process of treating sulphide ores of zinc
US1937631A (en) * 1931-03-18 1933-12-05 Niels C Christensen Process of treating zinc ores
US2435340A (en) * 1944-05-01 1948-02-03 Combined Metals Reduction Comp Process for the treatment of marmatitic zinc ores
US2609272A (en) * 1946-12-09 1952-09-02 Guaranty Invest Corp Ltd Process for the treatment of matte to recover metallic salts
US3656941A (en) * 1968-03-13 1972-04-18 Electrolyt Zinc Australasia Hydrometallurgical treatment of siliceous zinc ores
US3655538A (en) * 1969-05-19 1972-04-11 Texas Gulf Sulphur Co Process for electrowinning zinc from sulfide concentrates
US3888748A (en) * 1972-06-28 1975-06-10 Du Pont Recovery of metal values from ore concentrates
GB1407520A (en) * 1972-06-28 1975-09-24 Du Pont Electrolytic hydrometallurgical process to recover copper from sulphide ore concentrates
US3933478A (en) * 1973-08-27 1976-01-20 Nicosep Associates Recovery of zinc and copper from brass scrap
US3910636A (en) * 1973-12-06 1975-10-07 Kennecott Copper Corp Process for in-situ mining
US3912330A (en) * 1974-03-04 1975-10-14 Us Interior Chemical mining of copper porphyry ores
PH13567A (en) * 1976-08-11 1980-06-26 Sherritt Gordon Mines Ltd Process for the recovery of zinc
US4132758A (en) * 1977-11-30 1979-01-02 Kennecott Copper Corporation Copper leaching employing nitrogen dioxide as oxidant
CA1206008A (en) * 1982-02-24 1986-06-17 Donald R. Weir Recovery of zinc from zinc-containing sulphidic material
GB2114966B (en) * 1982-02-24 1985-08-29 Sherritt Gordon Mines Ltd Recovery of zinc from sulphidic material
SE451463B (en) * 1982-12-09 1987-10-12 Boliden Ab PROCEDURE FOR PREPARING COMPLEX SULFIDIC ORE CONCENTRATES
CA1219132A (en) * 1983-01-18 1987-03-17 Morris J.V. Beattie Hydrometallurgical arsenopyrite process
US4647307A (en) * 1983-01-18 1987-03-03 Rein Raudsepp Process for recovering gold and silver from refractory ores
LU85385A1 (en) * 1984-05-28 1986-01-29 Mines Fond Zinc Vieille PROCESS FOR LEACHING SULPHIDES CONTAINING ZINC AND IRON
SE451333B (en) * 1985-12-20 1987-09-28 Norzink As PROCEDURE FOR HYDROMETAL SURGICAL PREPARATION OF ZINC
EP0272060A3 (en) * 1986-12-18 1990-08-01 Electrolytic Zinc Company Of Australasia Limited Hydrometallurgical recovery of metals and elemental sulphur from metallic sulphides
US5188713A (en) * 1991-03-05 1993-02-23 Envirochip Technologies Ltd. Process for recovery of metal
GB2253781B (en) * 1992-05-26 1993-04-28 Lyndon Ivor Bowen Suitcase,removable protective cover
CA2070315A1 (en) * 1992-06-03 1993-12-04 Robert N. O'brien Recovery of metal from an ore
ATE144292T1 (en) * 1993-01-27 1996-11-15 R & O Mining Processing Ltd HYDROMETALLURGICAL PROCESS FOR EXTRACTING METALS FROM COMPLEX ORES

Also Published As

Publication number Publication date
FI970628A (en) 1997-04-10
AU698137B2 (en) 1998-10-22
WO1996005329A1 (en) 1996-02-22
CN1157009A (en) 1997-08-13
MX9701197A (en) 1998-05-31
CA2196981C (en) 2004-11-23
FI970628A0 (en) 1997-02-14
ATE175726T1 (en) 1999-01-15
CZ45297A3 (en) 1997-07-16
EP0776378A1 (en) 1997-06-04
EP0776378B1 (en) 1999-01-13
RU2135610C1 (en) 1999-08-27
US5711922A (en) 1998-01-27
AU3107695A (en) 1996-03-07
CN1045625C (en) 1999-10-13
ES2130630T3 (en) 1999-07-01
DE69507308D1 (en) 1999-02-25
BR9508598A (en) 1997-11-11
NO970693D0 (en) 1997-02-14
JPH10504060A (en) 1998-04-14
NO970693L (en) 1997-04-14
DE69507308T2 (en) 1999-09-09
PL318754A1 (en) 1997-07-07

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Effective date: 20150810