C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
204/66
C22B 7/00 (2006.01) B03B 9/04 (2006.01) C22B 1/00 (2006.01) A62D 3/00 (2006.01)
Patent
CA 1328842
ABSTRACT OF THE DISCLOSURE The invention relates to a process for recovery of metals from metal/plastic waste using used etching and washing solutions from the electronics industry, with the following process steps: (a) heating of the metal/plastic waste in a heating bath in order to separate the metal from the plastic; (b) dissolution of the metal component in the optionally regenerated etching and washing solutions; (c) conversion of the dissolved metal component into the sulfate through treatment with ion exchanger; (d) electrolytic deposition and, if appropriate, selective separation of the metal component into the individual metals, and (e) regeneration of the ion exchanger with reformation of the reusable etching solution.
577837
Fetherstonhaugh & Co.
Mr Metall-Recycling Gmbh
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