Process for the direct electrochemical refining of copper scrap

Details Process for the direct electrochemical refining of copper scrap Process for the direct electrochemical refining of copper scrap

1993-06-03

1994-12-13

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

C25C 112

Patent

active

053726847

ABSTRACT:
Copper scrap, reduced to particulate form having particle sizes not larger than 50 mm, is leached in a suitable apparatus with a solution of ferric fluoroborate in fluoroboric acid. During leaching, copper is dissolved, with ferric fluoroborate simultaneously being reduced to ferrous fluoroborate according to the following reaction:

REFERENCES:
patent: 3884782 (1975-05-01), Pittman et al.
patent: 3901776 (1975-08-01), Kruesi et al.
patent: 3926752 (1975-12-01), Loretto et al.
patent: 5039337 (1991-08-01), Olper et al.
The Encyclopedia of Electrochemistry, Clifford A. Hampel, Ed., Reinhold Publishing Corporation, New York 1964 pp. 245-246.

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