Method for extracting a zinc, nickel and copper metal, from an aqueous ammoniacal solution, comprising contacting said ammoniacal solution with an organic solution comprising a water-immiscible organic solvent, containing a dissolved extractant of an oxime, separating the aqueous phase of the organic phase, and recover the metal from the organic phase. (Divisional Application No. 2013-2461)

摘要

2. Section 1 of the application discloses a method for extracting selected metals from a group of zinc, nickel and copper from an aqueous ammonia solution containing metal value, which is characterized by:o Contacting an ammonia solution containing metal values which includes zinc, nickel and / or copper with an organic solution comprising a water-immiscible organic solvent, containing a dissolved extractant comprising an oxime having a structure represented by (R5) (R4) (R3) (R2) (OH) C6H2C (R1) = NOH,R1 is hydrogen or CH3;R2 and R4 are hydrogen;R3 is lease c8-12;R5 is methyl; it is an insoluble water organic phase, from ammonia solution to organic phase, at least some metal value is extracted, so as to produce the organic phase containing metal and the resulting metal barren organic phase;o. The resulting metal water phase is separated from the organic phase containing metal;O recover the metal value from the organic phase of the filler metal.