JPS6475632A - Recovering method for tantalum from scrap tantalum - Google Patents

Recovering method for tantalum from scrap tantalum

Info

Publication number
JPS6475632A
JPS6475632A JP23267887A JP23267887A JPS6475632A JP S6475632 A JPS6475632 A JP S6475632A JP 23267887 A JP23267887 A JP 23267887A JP 23267887 A JP23267887 A JP 23267887A JP S6475632 A JPS6475632 A JP S6475632A
Authority
JP
Japan
Prior art keywords
tantalum
alkoxide
chlorination
demanganese
electron beam
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.)
Pending
Application number
JP23267887A
Other languages
Japanese (ja)
Inventor
Michio Nanjo
Nagaaki Satou
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.)
Tosoh Corp
Original Assignee
Tosoh Corp
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 Tosoh Corp filed Critical Tosoh Corp
Priority to JP23267887A priority Critical patent/JPS6475632A/en
Publication of JPS6475632A publication Critical patent/JPS6475632A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

PURPOSE:To easily recover high purity tantalum by subjecting scrap tantalum to demanganese by acid leaching, etc., and refining it by the chlorination method, alkoxide method, electron beam melting method or the combination thereamong. CONSTITUTION:A used tantalum condenser is ground and the covered material and MnO2 solid electrolyte involved therein are removed away by acid leaching, chlorination-distillation or Ar-H2 plasma method, carbon reduction-leaching, etc. Said Ta after the demanganese is refined by the molting chlorination method, alkoxide method, electron beam method or the combination thereamong: said Ta is halogenated, is thereafter brought into reaction with alcohol to alkoxide and is thereafter subjected to hydrolysis or oxidation. By this method, Ta is recovered as high purity metallic Ta or Ta2O5.
JP23267887A 1987-09-18 1987-09-18 Recovering method for tantalum from scrap tantalum Pending JPS6475632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23267887A JPS6475632A (en) 1987-09-18 1987-09-18 Recovering method for tantalum from scrap tantalum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23267887A JPS6475632A (en) 1987-09-18 1987-09-18 Recovering method for tantalum from scrap tantalum

Publications (1)

Publication Number Publication Date
JPS6475632A true JPS6475632A (en) 1989-03-22

Family

ID=16943078

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23267887A Pending JPS6475632A (en) 1987-09-18 1987-09-18 Recovering method for tantalum from scrap tantalum

Country Status (1)

Country Link
JP (1) JPS6475632A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328334A (en) * 1989-06-27 1991-02-06 Tosoh Corp Method for recovering high purity tantalum and its derivative from tantalum scrap
KR20030003974A (en) * 2001-07-04 2003-01-14 한국지질자원연구원 Method for recovering tantalum from condenser scrap
KR100370269B1 (en) * 2000-09-08 2003-01-30 김영웅 A method for collecting tantalum form waste scraps containing tantalum
US6863750B2 (en) 2000-05-22 2005-03-08 Cabot Corporation High purity niobium and products containing the same, and methods of making the same
JP2009221514A (en) * 2008-03-14 2009-10-01 Dowa Eco-System Co Ltd Method for recovering tantalum from electronic substrates
US7981191B2 (en) 2007-10-15 2011-07-19 Hi-Temp Specialty Metals, Inc. Method for the production of tantalum powder using reclaimed scrap as source material
WO2011125510A1 (en) * 2010-04-01 2011-10-13 三井金属鉱業株式会社 Method for recovering tantalum
JP2012021218A (en) * 2010-07-16 2012-02-02 Dowa Eco-System Co Ltd Method for recovering tantalum
WO2012132962A1 (en) * 2011-03-31 2012-10-04 三井金属鉱業株式会社 Tantalum recovery method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833125A (en) * 1971-08-30 1973-05-08
JPS55149770A (en) * 1979-05-11 1980-11-21 Shinku Yakin Kk Molding method for crude ingot of active metal or high- melting-point metal or alloy of these metals
JPS57120629A (en) * 1981-01-20 1982-07-27 Sumitomo Metal Ind Ltd Refining method
JPS60217622A (en) * 1984-03-19 1985-10-31 スプラグ・エレクトリツク・カンパニー Method of reducing content of oxygen of tantalum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4833125A (en) * 1971-08-30 1973-05-08
JPS55149770A (en) * 1979-05-11 1980-11-21 Shinku Yakin Kk Molding method for crude ingot of active metal or high- melting-point metal or alloy of these metals
JPS57120629A (en) * 1981-01-20 1982-07-27 Sumitomo Metal Ind Ltd Refining method
JPS60217622A (en) * 1984-03-19 1985-10-31 スプラグ・エレクトリツク・カンパニー Method of reducing content of oxygen of tantalum

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0328334A (en) * 1989-06-27 1991-02-06 Tosoh Corp Method for recovering high purity tantalum and its derivative from tantalum scrap
US6863750B2 (en) 2000-05-22 2005-03-08 Cabot Corporation High purity niobium and products containing the same, and methods of making the same
KR100370269B1 (en) * 2000-09-08 2003-01-30 김영웅 A method for collecting tantalum form waste scraps containing tantalum
KR20030003974A (en) * 2001-07-04 2003-01-14 한국지질자원연구원 Method for recovering tantalum from condenser scrap
US7981191B2 (en) 2007-10-15 2011-07-19 Hi-Temp Specialty Metals, Inc. Method for the production of tantalum powder using reclaimed scrap as source material
JP2009221514A (en) * 2008-03-14 2009-10-01 Dowa Eco-System Co Ltd Method for recovering tantalum from electronic substrates
WO2011125510A1 (en) * 2010-04-01 2011-10-13 三井金属鉱業株式会社 Method for recovering tantalum
JP2011214110A (en) * 2010-04-01 2011-10-27 Mitsui Mining & Smelting Co Ltd Method for recovering tantalum
DE112011101153T5 (en) 2010-04-01 2013-01-10 Mitsui Mining & Smelting Co., Ltd. Process for the recovery of tantalum
US8852317B2 (en) 2010-04-01 2014-10-07 Mitsui Mining & Smelting Co., Ltd. Method for recovering tantalum
JP2012021218A (en) * 2010-07-16 2012-02-02 Dowa Eco-System Co Ltd Method for recovering tantalum
WO2012132962A1 (en) * 2011-03-31 2012-10-04 三井金属鉱業株式会社 Tantalum recovery method
US8961910B2 (en) 2011-03-31 2015-02-24 Mitsui Mining & Smelting Co., Ltd. Tantalum recovery method
JP5860034B2 (en) * 2011-03-31 2016-02-16 三井金属鉱業株式会社 Tantalum recovery method

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