US20100000437A1 - Detonation tube with improved separability from the processed broken stone - Google Patents

Detonation tube with improved separability from the processed broken stone Download PDF

Info

Publication number
US20100000437A1
US20100000437A1 US12/446,690 US44669007A US2010000437A1 US 20100000437 A1 US20100000437 A1 US 20100000437A1 US 44669007 A US44669007 A US 44669007A US 2010000437 A1 US2010000437 A1 US 2010000437A1
Authority
US
United States
Prior art keywords
magnetic
basis
detonation tube
main material
accordance
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.)
Abandoned
Application number
US12/446,690
Inventor
Pavel Valenta
Jaromir Fiala
Zlatko Srank
Libor Mastny
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.)
AUSTIN DETONATOR SRO
Original Assignee
AUSTIN DETONATOR SRO
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 AUSTIN DETONATOR SRO filed Critical AUSTIN DETONATOR SRO
Assigned to AUSTIN DETONATOR S.R.O. reassignment AUSTIN DETONATOR S.R.O. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FIALA, JAROMIR, MASTNY, LIBOR, SRANK, ZLATKO, VALENTA, PAVEL
Assigned to AUSTIN DETONATOR S.R.O. reassignment AUSTIN DETONATOR S.R.O. CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 022877 FRAME 0031. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT Assignors: FIALA, JAROMIR, MASTNY, LIBOR, SRANK, ZLATKO, VALENTA, PAVEL
Assigned to AUSTIN DETONATOR S.R.O. reassignment AUSTIN DETONATOR S.R.O. CORRECTIVE ASSIGNMENT TO CORRECT THE ADDRESS OF THE ASSIGNEE, PREVIOUSLY RECORDED ON REEL 022877 FRAME 0031. Assignors: FIALA, JAROMIR, MASTNY, LIBOR, SRANK, ZLATKO, VALENTA, PAVEL
Publication of US20100000437A1 publication Critical patent/US20100000437A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/11—Initiators therefor characterised by the material used, e.g. for initiator case or electric leads
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C5/00—Fuses, e.g. fuse cords
    • C06C5/04—Detonating fuses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42D—BLASTING
    • F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
    • F42D1/04—Arrangements for ignition

Definitions

  • the invention deals with double-layer, three-layer or multi-layer detonation tubes, also referred to as the Shock Tube type, used for industrial non-electric detonators.
  • Shock Tube type used for industrial non-electric detonators.
  • it deals with the design of their body to enable economically acceptable separation of remainders of such detonation tubes of non-electric detonators after the execution of blasting work from the other substances from the processed mined material.
  • a detonation tube with the possibility of easy machine separation from broken stone is achieved with the use of a detonation tube with improved separability from processed broken stone designed as double or multi-layer detonation tube of an industrial non-electric detonator containing the active component of the detonator stored in an at least double-layered tubular body or package in accordance with the presented invention
  • the principle is that at least one layer of the body or package of this detonation tubes is made of a magnetic material where this magnetic material is beneficially produced as a mixture of the magnetic and non-magnetic main material component while it may be especially advantageous if the content of the magnetic main material component in individual layers of the body or package of the detonation tube is 2 to 60% of weight and the rest to 100% consists of the non-magnetic main material component, all related to the weight of individual layers, or even better, if the content of the magnetic main material component of individual layers of the body or package is 10 to 30% of weight, related to the weight of
  • the magnetic main material component may be beneficially produced on the basis of magnetite —Fe 3 O 4 , or on the basis of ferrite with the general formula Me II Fe 2 O 4 , where Me represents Co, Mn, Ni, Ca, Cu, Zn, Mg, or ferrite with the general formula Ln II Fe 2 O 4 , where Ln represents noble earth elements, or on the basis of noble earth elements in the oxidation degree II, or on the basis of ferric oxide in the modification ⁇ -Fe 2 O 3 , or on the basis of powder iron, or on the basis of a magnetic alloy of iron or on the basis of a mixture or alloy containing the above mentioned magnetic partial components, where advantageous magnetic alloys of iron are alloys containing at least noble earth elements, or especially advantageous magnetic alloys of iron are alloys containing at least one noble earth element and B and/or Co while advantageous metallic noble earth elements are Nd and Sm.
  • the magnetic main material component is made on the basis of magnetically hard materials of the AlNiCo or FeCoCr type.
  • the non-magnetic main material component is beneficially created on the basis of a plastic material from the group of polymers or copolymers while it is especially advantageous if the polymer or copolymer is represented by substances from the PE, PP, PTFE plastic material group or ethylene copolymer with derivatives of methacrylic acid.
  • detonation tubes are created where the magnetic substances contained in its body or package, at least in one layer enable magnetic separation of remainders of this tube from the mined material, which eliminates the hitherto considerable disadvantage of the necessity of manual separation of these remainders or in comparison with not performed separation reduces the risk of clogging or damaging processing equipment of broken stone contaminated by remainders of detonation tubes.
  • detonation tubes made in accordance with the presented invention comply with requirements for cutting and rubbing resistance and the requirement for electric non-conductivity and also maintain their further benefits as high work safety and variability of creation of timed detonation networks as well as high resistance to water and humidity.
  • a double-layer detonation tube was prepared.
  • the first layer was based on ethylene copolymer with methacrylic acid and the second layer was based on PE containing 80 weight parts of PE and 20 weight parts of magnetite —FeFe 2 O 4 .
  • the detonation tube prepared this way complied with the required rubbing and cutting resistance as well as the requirement of non-conductivity in accordance with relevant technical standards.
  • a three-layer detonation tube was prepared.
  • the first layer was based on the same composition as in example 1, the second layer was based on PE containing 85 weight parts of magnetite —FeFe 2 O 4 and the third layer was based on PE containing 75 weight parts of PE and 25 weight parts of magnetite —FeFe 2 O 4 .
  • This detonation tube also complied with the required rubbing and cutting resistance as well as the requirement of non-conductivity in accordance with relevant technical standards.
  • detonation tubes prepared in accordance with examples 1 and 2 were used for sets of electric detonators. After the execution of blasting work with the use of these sets the removal efficiency of remainders of detonation tubes from the mined rock with a magnetic field was tested. In both the cases 100% efficiency of removal of remainders of detonation tubes was proved.
  • the equipment based on the presented invention can be used for blasting work where the resulting broken material is subsequently processed and the remainders of detonation tubes must be separated from the broken material.

Abstract

The invention deals with a detonation tube with improved separability from the processed broken stone designed as a double-layer or multi-layer detonation tube of an industrial non-electric detonator containing the active component of the detonator stored in an at least double-layered tubular body or package where the principle is that at least one layer of its body or package is made of magnetic material while the magnetic material is preferentially created as a mixture of the magnetic and non-magnetic main material component while the content of the magnetic main material component in individual layers of the body or package of the detonation tube is advantageously 2 to 60% of weight and the rest to 100% consists of the non-magnetic main material component, all related to the weight of individual layers, and the magnetic main material component is beneficially produced on the basis of magnetite —Fe3O4, or on the basis of ferrite with the general formula MeIIFe2O4, where Me represents Co, Mn, Ni, Ca, Cu, Zn, Mg, or ferrite with the general formula LnIIFe2O4, where Ln represents noble earth elements, or on the basis of noble earth elements in the oxidation degree II, or on the basis of ferric oxide in the modification γ-Fe2O3, or on the basis of powder iron, or on the basis of a magnetic alloy of iron or on the basis of a mixture or alloy containing the above mentioned magnetic partial components, where advantageous magnetic alloys of iron are alloys containing at least noble earth elements, or especially advantageous magnetic alloys of iron are alloys containing at least one noble earth element and B and/or Co or where alternatively the magnetic main material component is made on the basis of magnetically hard materials of the AlNiCo or FeCoCr type. The non-magnetic main material component is beneficially created on the basis of a plastic material, preferentially from the group of polymers or copolymers, mainly on the basis of substances from the PE, PP, PTFE plastic material group or ethylene copolymers with derivatives of methacrylic acid.

Description

    FIELD OF THE INVENTION
  • The invention deals with double-layer, three-layer or multi-layer detonation tubes, also referred to as the Shock Tube type, used for industrial non-electric detonators. In particular it deals with the design of their body to enable economically acceptable separation of remainders of such detonation tubes of non-electric detonators after the execution of blasting work from the other substances from the processed mined material.
    • BACKGROUND OF THE INVENTION
  • Remainders of detonation tubes of non-electric detonators used during blasting work within mining of rock contaminate the resulting mined product, i.e. broken stone. In this case contamination is represented by the presence of remainders of tubes in the mined material, which subsequently causes problems during the treatment of the material in technological equipment as e.g. crushers where the broken stone or mining product is ground or sorters where the product is sorted into the required fraction. The above mentioned contamination and entering of insulation remainders to the above mentioned processing machines result in frequent shutdowns of the machines caused by the necessity to remove the remainders of detonation tubes from them. In extreme cases the machines may even break down. This is why it is necessary to remove the concerned remainders of tubes from the mined product, especially stone, which is carried out manually at present. This fact increases the costs of the series of blasting work and treatment of mined stone, which is a considerable disadvantage in technological procedures comprising the use of otherwise very safe non-electric detonators equipped with a low-energy detonation tube. At present, this disadvantage limits using non-electric detonators with a detonation tube. But on the other hand some utility and technical parameters of these non-electric detonators have not been exceeded yet. Significant advantages of these entire detonators are mainly the point of view of work safety and variability of creating timed detonating networks as well as high resistance to water and humidity. However, in the present detonators of this type these advantages are overshadowed by contamination of broken stone by remainders of detonation tubes.
    • SUMMARY OF THE INVENTION
  • The above mentioned disadvantages are reduced to the decisive extent and a detonation tube with the possibility of easy machine separation from broken stone is achieved with the use of a detonation tube with improved separability from processed broken stone designed as double or multi-layer detonation tube of an industrial non-electric detonator containing the active component of the detonator stored in an at least double-layered tubular body or package in accordance with the presented invention where the principle is that at least one layer of the body or package of this detonation tubes is made of a magnetic material where this magnetic material is beneficially produced as a mixture of the magnetic and non-magnetic main material component while it may be especially advantageous if the content of the magnetic main material component in individual layers of the body or package of the detonation tube is 2 to 60% of weight and the rest to 100% consists of the non-magnetic main material component, all related to the weight of individual layers, or even better, if the content of the magnetic main material component of individual layers of the body or package is 10 to 30% of weight, related to the weight of individual layers of the body or package of the detonation tube. The magnetic main material component may be beneficially produced on the basis of magnetite —Fe3O4, or on the basis of ferrite with the general formula MeIIFe2O4, where Me represents Co, Mn, Ni, Ca, Cu, Zn, Mg, or ferrite with the general formula LnIIFe2O4, where Ln represents noble earth elements, or on the basis of noble earth elements in the oxidation degree II, or on the basis of ferric oxide in the modification γ-Fe2O3, or on the basis of powder iron, or on the basis of a magnetic alloy of iron or on the basis of a mixture or alloy containing the above mentioned magnetic partial components, where advantageous magnetic alloys of iron are alloys containing at least noble earth elements, or especially advantageous magnetic alloys of iron are alloys containing at least one noble earth element and B and/or Co while advantageous metallic noble earth elements are Nd and Sm. Or alternatively the magnetic main material component is made on the basis of magnetically hard materials of the AlNiCo or FeCoCr type. The non-magnetic main material component is beneficially created on the basis of a plastic material from the group of polymers or copolymers while it is especially advantageous if the polymer or copolymer is represented by substances from the PE, PP, PTFE plastic material group or ethylene copolymer with derivatives of methacrylic acid.
  • This way a detonation tube is created where the magnetic substances contained in its body or package, at least in one layer enable magnetic separation of remainders of this tube from the mined material, which eliminates the hitherto considerable disadvantage of the necessity of manual separation of these remainders or in comparison with not performed separation reduces the risk of clogging or damaging processing equipment of broken stone contaminated by remainders of detonation tubes. At the same time detonation tubes made in accordance with the presented invention comply with requirements for cutting and rubbing resistance and the requirement for electric non-conductivity and also maintain their further benefits as high work safety and variability of creation of timed detonation networks as well as high resistance to water and humidity.
    • DESCRIPTION OF THE PREFERRED EMBODIMENTS Example 1
  • A double-layer detonation tube was prepared. The first layer was based on ethylene copolymer with methacrylic acid and the second layer was based on PE containing 80 weight parts of PE and 20 weight parts of magnetite —FeFe2O4. The detonation tube prepared this way complied with the required rubbing and cutting resistance as well as the requirement of non-conductivity in accordance with relevant technical standards.
    • Example 2
  • A three-layer detonation tube was prepared. The first layer was based on the same composition as in example 1, the second layer was based on PE containing 85 weight parts of magnetite —FeFe2O4 and the third layer was based on PE containing 75 weight parts of PE and 25 weight parts of magnetite —FeFe2O4. This detonation tube also complied with the required rubbing and cutting resistance as well as the requirement of non-conductivity in accordance with relevant technical standards.
    • Example 3
  • The detonation tubes prepared in accordance with examples 1 and 2 were used for sets of electric detonators. After the execution of blasting work with the use of these sets the removal efficiency of remainders of detonation tubes from the mined rock with a magnetic field was tested. In both the cases 100% efficiency of removal of remainders of detonation tubes was proved.
    • INDUSTRIAL APPLICABILITY
  • The equipment based on the presented invention can be used for blasting work where the resulting broken material is subsequently processed and the remainders of detonation tubes must be separated from the broken material.

Claims (12)

1. A detonation tube with improved separability from the processed broke stone designed as a double-layer or multi-layer detonation tube of an industrial non-electric detonator containing the active component of the detonator characterized in that at least one layer of its body or package is made of magnetic material.
2. A detonation tube in accordance with claim 1 characterized in that the magnetic material is created as a mixture of the magnetic and non-magnetic main material component.
3. A detonation tube in accordance with claim 2 characterized in that the content of the magnetic main material component in individual layers of the body or package is 2 to 60% of weight and the rest to 100% consists of the non-magnetic main material component, all related to the weight of individual layers.
4. A detonation tube in accordance with claim 3 characterized in that the content of the magnetic main material component in individual layers of the body or package is 10 to 30% of weight, related to the weight of individual layers.
5. A detonation tube in accordance with claim 4 characterized in that the magnetic main material component is produced on the basis of magnetite —Fe3O4, or on the basis of ferrite with the general formula MeIIFe2O4, where Me represents Co, Mn, Ni, Ca, Cu, Zn, Mg, or ferrite with the general formula LnIIFe2O4, where Ln represents noble earth elements, or on the basis of noble earth elements in the oxidation degree II, or on the basis of ferric oxide in the modification γ-Fe2O3, or on the basis of powder iron, or on the basis of a magnetic alloy of iron, or on the basis of a mixture or alloy containing the above mentioned magnetic partial components.
6. A detonation tube in accordance with claim 5 characterized in that the magnetic alloys of iron are alloys containing also at least noble earth elements.
7. A detonation tube in accordance with claim 6 characterized in that the magnetic alloys of iron are alloys containing at least another metallic noble earth element and B and/or Co.
8. A detonation tube in accordance with claim 7 characterized in that the metallic noble earth elements are Nd and Sm.
9. A detonation tube in accordance with claim 4 characterized in that the magnetic main material component is produced on the basis of magnetically hard material of the AlNiCo or FeCoCr type.
10. A detonation tube in accordance with claim 9 characterized in that the non-magnetic main material component is made on the basis of plastic.
11. A detonation tube in accordance with claim 10 characterized in that the plastic is selected from the group of polymers or copolymers.
12. A detonation tube in accordance with claim 11 characterized in that the polymer or copolymer is represented by substances from the PE, PP, PTFE plastic group or ethylene copolymer with derivatives of methacrylic acid.
US12/446,690 2006-10-27 2007-10-26 Detonation tube with improved separability from the processed broken stone Abandoned US20100000437A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CZPV2006-682 2006-10-27
CZ2006-682A CZ306750B6 (en) 2006-10-27 2006-10-27 A detonation tube of an industrial non-electric blasting cap for improvement of separability from the processed broken rock
PCT/CZ2007/000095 WO2008049379A1 (en) 2006-10-27 2007-10-26 A detonation tube with improved separability from the processed broken stone

Publications (1)

Publication Number Publication Date
US20100000437A1 true US20100000437A1 (en) 2010-01-07

Family

ID=39047539

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/446,690 Abandoned US20100000437A1 (en) 2006-10-27 2007-10-26 Detonation tube with improved separability from the processed broken stone

Country Status (7)

Country Link
US (1) US20100000437A1 (en)
EP (1) EP2079979B1 (en)
AT (1) ATE519089T1 (en)
CZ (1) CZ306750B6 (en)
RU (1) RU2447394C2 (en)
UA (1) UA94773C2 (en)
WO (1) WO2008049379A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110964151A (en) * 2019-12-25 2020-04-07 浙江鑫牛管业有限公司 Preparation method of magnetic powder modified PPR material and method for processing pipe by using same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871751B (en) * 2010-06-04 2012-12-26 武汉人天包装技术有限公司 Explosion-conducting tube code spraying and visual automatic detection device in civil explosive industry

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539433A (en) * 1982-11-24 1985-09-03 Tdk Corporation Electromagnetic shield
US5243913A (en) * 1991-09-09 1993-09-14 Imperial Chemical Industries Plc Shock tube initiator
US5435249A (en) * 1992-10-20 1995-07-25 Imperial Chemical Industries Plc Shock tube initiator with phthalocyanine color indicator
US5545853A (en) * 1993-07-19 1996-08-13 Champlain Cable Corporation Surge-protected cable
US6247410B1 (en) * 1998-12-10 2001-06-19 The United States Of America As Represented By The Secretary Of The Navy High-output insensitive munition detonating cord
US6298784B1 (en) * 1999-10-27 2001-10-09 Talley Defense Systems, Inc. Heat transfer delay
US6578490B1 (en) * 2000-10-03 2003-06-17 Bradley Jay Francisco Ignitor apparatus
US6618237B2 (en) * 2001-06-06 2003-09-09 Senex Explosives, Inc. System for the initiation of rounds of individually delayed detonators
US6843178B2 (en) * 2002-08-22 2005-01-18 Lockheed Martin Corporation Electromagnetic pulse transmitting system and method
US20050109230A1 (en) * 2003-09-19 2005-05-26 Falquete Marco A. Process for the production of a thermal shock tube, and the product thereof
US20060021786A1 (en) * 2004-07-30 2006-02-02 Ulectra Corporation Integrated power and data insulated electrical cable having a metallic outer jacket
US20060165983A1 (en) * 2002-04-12 2006-07-27 Jongo Yoon Enameled wire having magnetic reluctance properties and preparation method thereof, and coil using the same and preparation method thereof
US7117796B1 (en) * 2005-12-29 2006-10-10 The United States Of America As Represented By The Secretary Of The Navy Igniter for exothermic torch rod
US20090277663A1 (en) * 2006-10-27 2009-11-12 Pavel Valenta Insulation of conductors with improved separability from processed broken stone
US7665401B2 (en) * 2003-12-01 2010-02-23 Mas Zengrange (Nz) Ltd Shock tube initiator
US7814833B1 (en) * 2004-04-14 2010-10-19 Raytheon Company Detonator system having linear actuator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE356500B (en) * 1968-07-15 1973-05-28 Nitro Nobel Ab
SU1655100A1 (en) * 1989-05-19 1997-05-20 Всесоюзный научно-исследовательский институт по строительству магистральных трубопроводов Detonating cord
US5208419A (en) * 1991-05-01 1993-05-04 Ici Canada Inc. Shock tubing that is IR transparent color-coded
GB9119217D0 (en) * 1991-09-09 1991-10-23 Ici Plc Low energy fuse
SE500323C2 (en) * 1992-11-17 1994-06-06 Dyno Industrier As Low-energy tube and means for its production
RU2081101C1 (en) * 1993-06-01 1997-06-10 Российский федеральный ядерный центр - Всероссийский научно-исследовательский институт технической физики Detonating cord
GB2281378B (en) * 1993-08-27 1997-04-30 Autoliv Dev Improvements in or relating to a shock tube arrangement

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539433A (en) * 1982-11-24 1985-09-03 Tdk Corporation Electromagnetic shield
US5243913A (en) * 1991-09-09 1993-09-14 Imperial Chemical Industries Plc Shock tube initiator
US5435249A (en) * 1992-10-20 1995-07-25 Imperial Chemical Industries Plc Shock tube initiator with phthalocyanine color indicator
US5545853A (en) * 1993-07-19 1996-08-13 Champlain Cable Corporation Surge-protected cable
US6247410B1 (en) * 1998-12-10 2001-06-19 The United States Of America As Represented By The Secretary Of The Navy High-output insensitive munition detonating cord
US6298784B1 (en) * 1999-10-27 2001-10-09 Talley Defense Systems, Inc. Heat transfer delay
US6539869B2 (en) * 1999-10-27 2003-04-01 Talley Defense Systems, Inc. Heat transfer initiator
US6578490B1 (en) * 2000-10-03 2003-06-17 Bradley Jay Francisco Ignitor apparatus
US6618237B2 (en) * 2001-06-06 2003-09-09 Senex Explosives, Inc. System for the initiation of rounds of individually delayed detonators
US20060165983A1 (en) * 2002-04-12 2006-07-27 Jongo Yoon Enameled wire having magnetic reluctance properties and preparation method thereof, and coil using the same and preparation method thereof
US6843178B2 (en) * 2002-08-22 2005-01-18 Lockheed Martin Corporation Electromagnetic pulse transmitting system and method
US20050109230A1 (en) * 2003-09-19 2005-05-26 Falquete Marco A. Process for the production of a thermal shock tube, and the product thereof
US7665401B2 (en) * 2003-12-01 2010-02-23 Mas Zengrange (Nz) Ltd Shock tube initiator
US7814833B1 (en) * 2004-04-14 2010-10-19 Raytheon Company Detonator system having linear actuator
US20060021786A1 (en) * 2004-07-30 2006-02-02 Ulectra Corporation Integrated power and data insulated electrical cable having a metallic outer jacket
US7117796B1 (en) * 2005-12-29 2006-10-10 The United States Of America As Represented By The Secretary Of The Navy Igniter for exothermic torch rod
US20090277663A1 (en) * 2006-10-27 2009-11-12 Pavel Valenta Insulation of conductors with improved separability from processed broken stone

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110964151A (en) * 2019-12-25 2020-04-07 浙江鑫牛管业有限公司 Preparation method of magnetic powder modified PPR material and method for processing pipe by using same

Also Published As

Publication number Publication date
RU2009119407A (en) 2010-12-10
RU2447394C2 (en) 2012-04-10
CZ2006682A3 (en) 2008-05-07
ATE519089T1 (en) 2011-08-15
CZ306750B6 (en) 2017-06-14
EP2079979A1 (en) 2009-07-22
EP2079979B1 (en) 2011-08-03
UA94773C2 (en) 2011-06-10
WO2008049379A1 (en) 2008-05-02

Similar Documents

Publication Publication Date Title
Wang et al. Adsorption characteristics of cadmium onto microplastics from aqueous solutions
Moral et al. Distribution of heavy metals in calcareous and non-calcareous soils in Spain
Gregory et al. Comparison of metal enrichment in pyrite framboids from a metal-enriched and metal-poor estuary
Ahmadipour et al. Fractionation and mobility of cadmium and lead in soils of Amol area in Iran, using the modified BCR sequential extraction method
Shearme et al. Geochemistry of sediments from the TAG hydrothermal field, MAR at latitude 26 N
Gaber et al. Extraction of certain heavy metals from sewage sludge using different types of acids
EP2079979B1 (en) A detonation tube with improved separability from the processed broken stone
US20090277663A1 (en) Insulation of conductors with improved separability from processed broken stone
CA2967667A1 (en) Water treatment using a cryptocrystalline magnesite - bentonite clay composite
Van et al. Enhancement of exchangeable Cd and Pb immobilization in contaminated soil using Mg/Al LDH-zeolite as an effective adsorbent
Fosso-Kankeu et al. Leachability of suspended particles in mine water and risk of water contamination
Karlsson et al. Characterization of suspended solids in a stream receiving acid mine effluents, Bersbo, Sweden
AU2009321531A1 (en) Process for separating limonite and saprolite
Martoyan et al. New technology of extracting the amount of rare earth metals from the red mud
CZ17057U1 (en) Detonating tube with enhanced separating ability from raw ore or broken coal
Ellis et al. Treatment of Gold–Telluride Ores
Amuda et al. Toxicity, sources, and control of Copper (Cu), Zinc (Zn), Molybdenum (Mo), Silver (Ag), and rare earth elements in the environment
Mustapha et al. Preg-robbing characteristics of gold ores in Ghana
Gajda et al. Substitution of magnetite in dense medium separation by Zinc-Lead waste
JP6316100B2 (en) Mine wastewater or osmotic water treatment method
Holm et al. Recovery of copper from small grain sizes of municipal solid waste incineration bottom ash by means of density separation
Magdalinovic et al. Cyanide elimination from lead-zinc flotation
Potokin Effectiveness evaluating of the use electric pulse comminution method in combined technology of slag dump copper-nickel production refining
Tozsin et al. Evaluation of pyritic tailings from a copper concentration plant for calcareous sodic soil reclamation
RU2467072C1 (en) Powder wire for out-of-furnace treatment of steel melt

Legal Events

Date Code Title Description
AS Assignment

Owner name: AUSTIN DETONATOR S.R.O., CZECH REPUBLIC

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VALENTA, PAVEL;FIALA, JAROMIR;SRANK, ZLATKO;AND OTHERS;REEL/FRAME:022877/0031

Effective date: 20090507

AS Assignment

Owner name: AUSTIN DETONATOR S.R.O., CZECH REPUBLIC

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE'S ADDRESS PREVIOUSLY RECORDED ON REEL 022877 FRAME 0031;ASSIGNORS:VALENTA, PAVEL;FIALA, JAROMIR;SRANK, ZLATKO;AND OTHERS;REEL/FRAME:023046/0994

Effective date: 20090507

AS Assignment

Owner name: AUSTIN DETONATOR S.R.O., CZECH REPUBLIC

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ADDRESS OF THE ASSIGNEE, PREVIOUSLY RECORDED ON REEL 022877 FRAME 0031;ASSIGNORS:VALENTA, PAVEL;FIALA, JAROMIR;SRANK, ZLATKO;AND OTHERS;REEL/FRAME:022913/0590

Effective date: 20090507

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION