METHOD FOR SEPARATING AND COLLECTING METALS FROM PLATING MEDIUM, AND METHOD FOR RECYCLING PLATING MEDIUM

• Main Author: NAKAMURA Hidemi
• Format: Patent
• Language: English; French; Japanese
• Published: 26.09.2019
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; PRETREATMENT OF RAW MATERIALS; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

In a used plating medium, a metal surface layer is dissociated from a core and dissolved with an acid to thereby give an aqueous mixed metal solution 13 containing Ni ions 9 and Sn ions 11. Then, the aqueous mixed metal solution 13 is passed through a column 17 packed with anion exchange fibers 15 a...