Reclamation of a palladium-tin based electroless plating...

Details Reclamation of a palladium-tin based electroless plating... Reclamation of a palladium-tin based electroless plating...

B - Operations, Transporting

01

J

252/87

B01J 23/96 (2006.01) C22B 7/00 (2006.01) C22B 25/06 (2006.01) C23C 18/16 (2006.01)

Patent

CA 1228846

-15- ABSTRACT A method for the recovery and reuse of an expensive palladium- tin catalyst whereby alkali hydroxide or carbonate is added to the exhausted catalytic solution and/or the spent rinse water solution to precipitate out a catalyst residue, which is then filtered, collected, washed, and dissolved in a hydrohalide acid and adjusted to a predetermined concentration.

447257

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