EP 0402288 B1 19940921 - Process for the separation of calcium and nitrogen from lithium.
Title (en)
Process for the separation of calcium and nitrogen from lithium.
Title (de)
Verfahren zur Abtrennung von Kalzium und Stickstoff aus Lithium.
Title (fr)
Procédé de séparation du calcium et de l'azote du lithium.
Publication
Application
Priority
FR 8908144 A 19890609
Abstract (en)
[origin: EP0402288A2] 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.
IPC 1-7
IPC 8 full level
C25C 3/02 (2006.01); C22B 26/12 (2006.01)
CPC (source: EP US)
C22B 26/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE ES GB IT NL SE
DOCDB simple family (publication)
EP 0402288 A2 19901212; EP 0402288 A3 19910918; EP 0402288 B1 19940921; AT E111965 T1 19941015; CA 2018409 A1 19901209; CA 2018409 C 19951219; DD 294973 A5 19911017; DE 69012660 D1 19941027; DE 69012660 T2 19950209; ES 2060116 T3 19941116; FR 2649416 A1 19910111; FR 2649416 B1 19911129; JP H0368792 A 19910325; JP H0653952 B2 19940720; US 5019158 A 19910528
DOCDB simple family (application)
EP 90420275 A 19900607; AT 90420275 T 19900607; CA 2018409 A 19900606; DD 34141590 A 19900607; DE 69012660 T 19900607; ES 90420275 T 19900607; FR 8908144 A 19890609; JP 14604590 A 19900604; US 52445190 A 19900516