C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
53/375, 260/577.
C07C 49/76 (2006.01) C01G 3/00 (2006.01) C07C 45/46 (2006.01) C07C 45/57 (2006.01) C07C 45/76 (2006.01) C07C 45/77 (2006.01) C07C 49/794 (2006.01) C07C 49/80 (2006.01) C07C 49/84 (2006.01) C07C 49/92 (2006.01) C22B 9/10 (2006.01)
Patent
CA 1071236
Abstract of the Disclosure A process for the extraction of metals as Cu, Co, Ni, Fe, Ag, Be, Ga, Eu, In, and/or Zn from their aqueous solution con- taining the metal ions by bringing in a close contact with this agueous solution a compound of the general formula I Image wherein R1 means an alkyl radical having 3 to 12 carbon atoms, R3 means hydrogen or chlorine or fluorine, the sum of the carbon atoms of R1, R2 and R3 being preferably at least 6, which compound may be dissolved in an inert organic water-in- soluble solvent, and then the organic phase from the aqueous solution and soparating the extracted metal from the organic phase by means of an acid.
238261
Eiglmeier Kurt
Pfuller Peter
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