Process for the extraction of metal values using hydrocyclic...

Details Process for the extraction of metal values using hydrocyclic... Process for the extraction of metal values using hydrocyclic...

C - Chemistry, Metallurgy

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D

260/251, 260/268

C07D 239/28 (2006.01) C01G 3/00 (2006.01) C01G 9/00 (2006.01) C01G 11/00 (2006.01) C01G 51/00 (2006.01) C07D 237/24 (2006.01) C07D 239/30 (2006.01) C07D 241/24 (2006.01) C22B 3/36 (2006.01) C22B 15/00 (2006.01)

Patent

CA 1252097

ABSTRACT Process for the Extraction of Metal Values Using Hydrocyclic Compounds Containing Two Nitrogen Hetero-Atoms and Novel Metal Extractants Metal values are extracted from aqueous solutions of metal salts containing halide or pseudo halide ions by pyrimidine, pyrazine or pyridazine derivitives bearing the substituent -(C=O.X)n where X is the group -OR1 or -NR2R3 and n is 1, 2 or 3. R1 is a hydrocarbyl group containing from 1 to 36 carbon atoms and R2 and R2 together contain from 1 to 36 carbon atoms. The molecule as a whole contains from 5 to 36 alkyl carbon atoms and may carry furter optional substituents. The process is especially useful for the recovery of metals from leach solutions derived from sulphur-containg ores.

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