C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/374
C22B 3/36 (2006.01) C01G 31/00 (2006.01) C01G 37/00 (2006.01) C01G 39/00 (2006.01) C01G 41/00 (2006.01) C22B 60/02 (2006.01)
Patent
CA 1337243
Metal values (especially uranium values) are extracted from aqueous solutions of metal oxyions in the absence of halogen ion using an imidazole of defined formula. Especially preferred extractants are 1-alkyl imidzaoles and benzimidazoles having from 7 to 25 carbon atoms in the alkyl group.
562425
Marks & Clerk
Zeneca Limited
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