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1. (WO2013114089) NICKEL RECOVERY

Pub. No.:    WO/2013/114089    International Application No.:    PCT/GB2013/050178
Publication Date: Fri Aug 09 01:59:59 CEST 2013 International Filing Date: Tue Jan 29 00:59:59 CET 2013
IPC: C22B 7/00
C22B 23/00
Applicants: C-TECH INNOVATION LIMITED
Inventors: FITZPATRICK, Paul
Title: NICKEL RECOVERY
Abstract:
A method for recovering nickel from a nickel-containing waste, the method comprising: (1) contacting the nickel-containing waste with a solvent to dissolve nickel from the nickel-containing waste; (2) contacting the dissolved nickel with a glyoxime-based complexing agent to form a nickel complex; (3) contacting the nickel complex with an ionic liquid to extract nickel from the nickel complex to form a nickel-containing ionic liquid; and (4) recovering nickel from the nickel- containing ionic liquid.