KR970007520B1 - 니켈수소 2차 전지로부터의 유효금속회수법 - Google Patents
니켈수소 2차 전지로부터의 유효금속회수법 Download PDFInfo
- Publication number
- KR970007520B1 KR970007520B1 KR1019940006991A KR19940006991A KR970007520B1 KR 970007520 B1 KR970007520 B1 KR 970007520B1 KR 1019940006991 A KR1019940006991 A KR 1019940006991A KR 19940006991 A KR19940006991 A KR 19940006991A KR 970007520 B1 KR970007520 B1 KR 970007520B1
- Authority
- KR
- South Korea
- Prior art keywords
- nickel
- earth metal
- rare earth
- molten salt
- iron
- 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.)
- Expired - Lifetime
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims description 63
- 238000000034 method Methods 0.000 title claims description 43
- 229910052759 nickel Inorganic materials 0.000 title claims description 32
- 229910052751 metal Inorganic materials 0.000 title claims description 31
- 239000002184 metal Substances 0.000 title claims description 31
- 239000001257 hydrogen Substances 0.000 title claims description 22
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 22
- -1 nickel hydrogen Chemical class 0.000 title claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 150000003839 salts Chemical class 0.000 claims description 30
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 27
- 239000000843 powder Substances 0.000 claims description 20
- 239000003513 alkali Substances 0.000 claims description 19
- 238000005868 electrolysis reaction Methods 0.000 claims description 19
- 239000002244 precipitate Substances 0.000 claims description 17
- 150000002910 rare earth metals Chemical class 0.000 claims description 16
- 238000001914 filtration Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 14
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 238000001354 calcination Methods 0.000 claims description 10
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 10
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 238000005194 fractionation Methods 0.000 claims description 9
- 229910001453 nickel ion Inorganic materials 0.000 claims description 9
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims description 8
- 150000007522 mineralic acids Chemical class 0.000 claims description 8
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 7
- 229910001404 rare earth metal oxide Inorganic materials 0.000 claims description 7
- 230000001376 precipitating effect Effects 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims 1
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 20
- 229910044991 metal oxide Inorganic materials 0.000 description 16
- 150000004706 metal oxides Chemical class 0.000 description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 229910016036 BaF 2 Inorganic materials 0.000 description 9
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 7
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 7
- 229910001122 Mischmetal Inorganic materials 0.000 description 7
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 7
- 239000001099 ammonium carbonate Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000012670 alkaline solution Substances 0.000 description 5
- 229910017052 cobalt Inorganic materials 0.000 description 5
- 239000010941 cobalt Substances 0.000 description 5
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- 238000009940 knitting Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000007773 negative electrode material Substances 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229960002050 hydrofluoric acid Drugs 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- OYLGJCQECKOTOL-UHFFFAOYSA-L barium fluoride Chemical compound [F-].[F-].[Ba+2] OYLGJCQECKOTOL-UHFFFAOYSA-L 0.000 description 1
- 229910001632 barium fluoride Inorganic materials 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910000008 nickel(II) carbonate Inorganic materials 0.000 description 1
- ZULUUIKRFGGGTL-UHFFFAOYSA-L nickel(ii) carbonate Chemical compound [Ni+2].[O-]C([O-])=O ZULUUIKRFGGGTL-UHFFFAOYSA-L 0.000 description 1
- BFDHFSHZJLFAMC-UHFFFAOYSA-L nickel(ii) hydroxide Chemical compound [OH-].[OH-].[Ni+2] BFDHFSHZJLFAMC-UHFFFAOYSA-L 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0407—Leaching processes
- C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
-
- 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
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
-
- 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
- C22B59/00—Obtaining rare earth metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/34—Electrolytic production, recovery or refining of metals by electrolysis of melts of metals not provided for in groups C25C3/02 - C25C3/32
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Secondary Cells (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
Description
Claims (2)
- 니켈수소 2차 전지를 파쇄하여 알칼리분을 제거한 후, 습식비중 분별법에 의해 유기물질을 분리하는 공정과, 철분을 분리하는 공정을 행한 후, (a) 적어도 상기 알칼리분, 유기물질 및 철분을 분리한 성분을 소성하는 공정, (b) 적어도 상기 알칼리분, 유기물질 및 철분을 분리한 성분을 무기산에 용해후, 회토류 금속이온 및 니켈이온을 침전시켜 그 침전물을 여과, 소성하는 공정, (c) 적어도 상기 알카리분, 유기물질 및 철분을 분리한 성분을 무기산에 용해후, 회토류 금속이온을 플루오르화물로 하여 침전시켜 얻어지는 침전물을 여과, 소성하여 플루오르화 회토류 금속을 얻고, 한편 상기 침전물을 여과한 잔액에서 니켈이온을 침전시켜 그 침전물을 여과, 소성하여 산화니켈을 얻는 공정의 상기 (a)~(c)공정의 어느 한 공정, (a)공정 및 (c)공정의 조합, (b)공정 및 (c)공정의 조합, 또는 (a)~(c)공정의 모든 공정에 의하여 얻어지는 소성물을 전전해용 용융염욕을 사용하는 용융염 전해법에 의해 처리하는 것을 특징으로 하는 니켈수소 2차 전지로부터의 유효금속회수법.
- 제 1 항에 있어서, 상기 전해용 용융염욕에 상기 조성물을 가하여 다시 회토류 금속산화물을 첨가하는 것을 특징으로 하는 니켈수소 2차 전지로부터의 유효금속회수법.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7817293 | 1993-04-05 | ||
| JP93-78172 | 1993-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR970007520B1 true KR970007520B1 (ko) | 1997-05-09 |
Family
ID=13654535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940006991A Expired - Lifetime KR970007520B1 (ko) | 1993-04-05 | 1994-04-02 | 니켈수소 2차 전지로부터의 유효금속회수법 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5478664A (ko) |
| EP (1) | EP0649912B1 (ko) |
| KR (1) | KR970007520B1 (ko) |
| AT (1) | ATE173027T1 (ko) |
| DE (1) | DE69414345T2 (ko) |
| WO (1) | WO1994023073A1 (ko) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4445495A1 (de) * | 1994-12-20 | 1996-06-27 | Varta Batterie | Verfahren zur Rückgewinnung von Metallen aus gebrauchten Nickel-Metallhydrid-Akkumulatoren |
| DE4445496A1 (de) * | 1994-12-20 | 1996-06-27 | Varta Batterie | Verfahren zur Rückgewinnung von Metallen aus gebrauchten Nickel-Metallhydrid-Akkumulatoren |
| FR2737344B1 (fr) * | 1995-07-26 | 1997-09-12 | Affinage Des Metaux Snam Soc N | Procede de traitement de dechets contenant un ou des alliages hydrurables en vue de leur recyclage |
| JP3183619B2 (ja) * | 1995-10-26 | 2001-07-09 | 三井金属鉱業株式会社 | 電気自動車用2次電池からの有価物の回収方法 |
| JPH09217133A (ja) * | 1996-02-13 | 1997-08-19 | Santoku Kinzoku Kogyo Kk | 希土類−ニッケル系合金からの有用元素の回収方法 |
| US5972531A (en) * | 1996-12-24 | 1999-10-26 | Canon Kabushiki Kaisha | Process and apparatus for recovering constituent components of battery |
| DE19727880B4 (de) * | 1997-06-30 | 2009-11-26 | K-Utec Ag Salt Technologies | Verfahren zur Wertstoffrückgewinnung aus Nickel-Metallhydridzellen |
| US6150050A (en) * | 1998-03-09 | 2000-11-21 | Valence Technology, Inc | Method for recovering particulate material from electrical components |
| US6180278B1 (en) | 1998-07-21 | 2001-01-30 | Eveready Battery Company, Inc. | Reclamation of active material from metal hydride electrochemical cells |
| WO2000019557A1 (fr) * | 1998-09-28 | 2000-04-06 | Mitsubishi Heavy Industries, Ltd. | Procede de broyage de piles |
| DE19924707A1 (de) * | 1999-05-28 | 2000-11-30 | Merck Patent Gmbh | Verfahren zum Recycling von Kathodenmassen gebrauchter Lithiumbatterien |
| RU2154681C1 (ru) * | 1999-10-11 | 2000-08-20 | Открытое акционерное общество "Серовский металлургический завод" | Способ переработки вторичных химических источников тока, содержащих никель |
| KR100473641B1 (ko) * | 2002-06-03 | 2005-03-10 | 한국지질자원연구원 | 폐리튬이온전지로부터의 리튬코발트 산화물 회수장치 및방법 |
| GB2395958A (en) * | 2002-12-05 | 2004-06-09 | British Nuclear Fuels Plc | Electrolytic separation of metals |
| JP4892236B2 (ja) * | 2005-12-27 | 2012-03-07 | プライムアースEvエナジー株式会社 | 蓄電池用極板の活物質分離方法 |
| GB2498955B (en) * | 2012-01-31 | 2015-03-11 | C Tech Innovation Ltd | Nickel recovery |
| JP6216206B2 (ja) * | 2012-10-23 | 2017-10-18 | 国立大学法人横浜国立大学 | 希土類元素の回収方法及び希土類元素の回収装置 |
| WO2014066776A1 (en) * | 2012-10-26 | 2014-05-01 | Retriev Technologies Incorporated | Process for the recovery of ab5 alloy from used nickel/metal hydride batteries and/or cells |
| DE102012024876A1 (de) | 2012-12-19 | 2014-06-26 | Electrocycling Gmbh | Vorrichtung und Verfahren zum Überführen transportkritischer Elektrolytzellen in einen transportfähigen Zustand |
| FR3013359B1 (fr) | 2013-11-18 | 2016-01-01 | Commissariat Energie Atomique | Procede de recuperation des metaux contenus dans un accumulateur de type ni-mh |
| CN110233305A (zh) * | 2019-06-28 | 2019-09-13 | 武汉大学 | 一种废旧锂离子电池三元正极材料的熔盐再生活化方法 |
| CN110616335A (zh) * | 2019-10-10 | 2019-12-27 | 包头三钐稀土有限公司 | 一种从稀土金属渣中回收稀土金属的回收装置及加工方法 |
| CN113278808B (zh) * | 2021-04-23 | 2022-01-11 | 昆明理工大学 | 一种联动回收铝冶炼过程多种固废物料的方法 |
| CN115477338B (zh) * | 2022-09-23 | 2023-09-26 | 淮阴师范学院 | 以镍粉为原料制备空心纳米氧化镍的方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4004990A (en) * | 1974-08-06 | 1977-01-25 | Sumitomo Metal Mining Co., Limited | Process for separating and recovering nickel and cobalt |
| JPS5319102A (en) * | 1976-08-05 | 1978-02-22 | Yuasa Battery Co Ltd | Method of recovering metals from spent galvanic cell |
| AT355650B (de) * | 1978-06-08 | 1980-03-10 | Vni Gorno Metall I Tsvet Met | Verfahren zur verarbeitung von akkumulatoren -schrottblei |
| DE3000040A1 (de) * | 1979-06-01 | 1980-12-11 | Hanna Mining Co | Verfahren zur rueckgewinnung von nickel aus abfallmaterialien |
| US4737248A (en) * | 1985-12-19 | 1988-04-12 | Sumitomo Light Metal Industries, Ltd. | Process for producing dysprosium-iron alloy and neodymium-dysprosium-iron alloy |
| FR2600081A1 (fr) * | 1986-03-19 | 1987-12-18 | Rhone Poulenc Chimie | Procede de separation de terres rares |
| US4762694A (en) * | 1987-05-01 | 1988-08-09 | The United States Of America As Represented By The United States Department Of Energy | Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals |
| JPH0192327A (ja) * | 1987-10-05 | 1989-04-11 | Hikoshima Seiren Kk | 廃棄物からのニッケル、カドミウムの回収法 |
| EP0467180A3 (en) * | 1990-07-17 | 1992-03-18 | Iowa State University Research Foundation, Inc. | Rare earth/transition metal alloy scrap treatment method |
| US5314526A (en) * | 1990-12-06 | 1994-05-24 | General Motors Corporation | Metallothermic reduction of rare earth fluorides |
| US5173277A (en) * | 1991-02-22 | 1992-12-22 | Nl Industries, Inc. | Methods for processing battery waste and other lead-contaminated materials |
| CH684225A5 (de) * | 1992-09-02 | 1994-07-29 | Inter Recycling Ag | Verfahren zum Entsorgen von Nickel-Cadmium- oder Nickel-Hydrid-Zellen. |
-
1994
- 1994-04-02 KR KR1019940006991A patent/KR970007520B1/ko not_active Expired - Lifetime
- 1994-04-05 DE DE69414345T patent/DE69414345T2/de not_active Expired - Fee Related
- 1994-04-05 EP EP94910600A patent/EP0649912B1/en not_active Expired - Lifetime
- 1994-04-05 US US08/347,424 patent/US5478664A/en not_active Expired - Lifetime
- 1994-04-05 AT AT94910600T patent/ATE173027T1/de not_active IP Right Cessation
- 1994-04-05 WO PCT/JP1994/000560 patent/WO1994023073A1/ja not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US5478664A (en) | 1995-12-26 |
| EP0649912A4 (en) | 1995-11-22 |
| WO1994023073A1 (fr) | 1994-10-13 |
| DE69414345D1 (de) | 1998-12-10 |
| EP0649912A1 (en) | 1995-04-26 |
| DE69414345T2 (de) | 1999-03-25 |
| EP0649912B1 (en) | 1998-11-04 |
| ATE173027T1 (de) | 1998-11-15 |
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