RECLAMATION OF A PALLADIUM-TIN BASED ELECTROLESS PLATING CATALYST FROM THE EXHAUSTED CATALYST SOLUTION AND ACCOMPANYING RINSE WATERS

摘要

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