EP0402288A3 - Process for the separation of calcium and nitrogen from lithium - Google Patents

Process for the separation of calcium and nitrogen from lithium Download PDF

Info

Publication number
EP0402288A3
EP0402288A3 EP19900420275 EP90420275A EP0402288A3 EP 0402288 A3 EP0402288 A3 EP 0402288A3 EP 19900420275 EP19900420275 EP 19900420275 EP 90420275 A EP90420275 A EP 90420275A EP 0402288 A3 EP0402288 A3 EP 0402288A3
Authority
EP
European Patent Office
Prior art keywords
lithium
calcium
nitrogen
separation
insoluble
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
EP19900420275
Other languages
German (de)
French (fr)
Other versions
EP0402288A2 (en
EP0402288B1 (en
Inventor
Guy Bernard
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.)
Metaux Speciaux SA
Original Assignee
Metaux Speciaux SA
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 Metaux Speciaux SA filed Critical Metaux Speciaux SA
Publication of EP0402288A2 publication Critical patent/EP0402288A2/en
Publication of EP0402288A3 publication Critical patent/EP0402288A3/en
Application granted granted Critical
Publication of EP0402288B1 publication Critical patent/EP0402288B1/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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/10—Obtaining alkali metals
    • C22B26/12—Obtaining lithium

Abstract

Process for separating calcium and nitrogen from lithium. <??>This process is characterised in that alumina is added to molten lithium so as to form aluminium nitride and calcium oxide, which are insoluble, and the said insoluble materials are separated off with heating to recover purified lithium. <??>It finds its application in the production of lithium of a quality which is particularly suitable for the manufacture of aluminium-lithium alloys and of electrical battery electrodes.
EP90420275A 1989-06-09 1990-06-07 Process for the separation of calcium and nitrogen from lithium Expired - Lifetime EP0402288B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8908144 1989-06-09
FR8908144A FR2649416B1 (en) 1989-06-09 1989-06-09 PROCESS FOR SEPARATING CALCIUM AND LITHIUM NITROGEN

Publications (3)

Publication Number Publication Date
EP0402288A2 EP0402288A2 (en) 1990-12-12
EP0402288A3 true EP0402288A3 (en) 1991-09-18
EP0402288B1 EP0402288B1 (en) 1994-09-21

Family

ID=9382902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420275A Expired - Lifetime EP0402288B1 (en) 1989-06-09 1990-06-07 Process for the separation of calcium and nitrogen from lithium

Country Status (9)

Country Link
US (1) US5019158A (en)
EP (1) EP0402288B1 (en)
JP (1) JPH0653952B2 (en)
AT (1) ATE111965T1 (en)
CA (1) CA2018409C (en)
DD (1) DD294973A5 (en)
DE (1) DE69012660T2 (en)
ES (1) ES2060116T3 (en)
FR (1) FR2649416B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6200541B1 (en) * 1997-10-28 2001-03-13 Bp Amoco Corporation Composite materials for membrane reactors
CN101642815A (en) * 2009-09-04 2010-02-10 黄启新 Method for preparing metal lithium at high temperature employing the electrical conductivity of molten slag
CN107058761B (en) * 2016-12-19 2019-06-11 天齐锂业股份有限公司 The method that drop removes nitride in lithium metal or lithium alloy
CN106756105B (en) * 2016-12-19 2018-10-30 天齐锂业股份有限公司 The drop of nitride removes method in lithium metal or lithium alloy
US20190280292A1 (en) * 2018-03-08 2019-09-12 Seeo, Inc. Lithium metal foils with low defect density

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528032A (en) * 1984-01-10 1985-07-09 The United States Of America As Represented By The United States Department Of Energy Lithium purification technique
US4781756A (en) * 1987-07-02 1988-11-01 Lithium Corporation Of America Removal of lithium nitride from lithium metal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3287109A (en) * 1963-05-31 1966-11-22 Dow Chemical Co Oxygen removal from alkali metals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528032A (en) * 1984-01-10 1985-07-09 The United States Of America As Represented By The United States Department Of Energy Lithium purification technique
US4781756A (en) * 1987-07-02 1988-11-01 Lithium Corporation Of America Removal of lithium nitride from lithium metal

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL OF APPLIED CHEMISTRY vol. 13, Août 1963, LONDON UK pages 329 - 334; & BROOMFIELD: '"The purification of lithium by vacuum distillation" ' *

Also Published As

Publication number Publication date
ES2060116T3 (en) 1994-11-16
US5019158A (en) 1991-05-28
EP0402288A2 (en) 1990-12-12
EP0402288B1 (en) 1994-09-21
DE69012660D1 (en) 1994-10-27
CA2018409C (en) 1995-12-19
FR2649416A1 (en) 1991-01-11
DD294973A5 (en) 1991-10-17
CA2018409A1 (en) 1990-12-09
JPH0653952B2 (en) 1994-07-20
FR2649416B1 (en) 1991-11-29
ATE111965T1 (en) 1994-10-15
JPH0368792A (en) 1991-03-25
DE69012660T2 (en) 1995-02-09

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