Electrodeposition of copper

Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge

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204 52R, 204108, 204275, C25C 112, C25C 700, C25D 338, C25D 1700

Patent

active

040533778

ABSTRACT:
The invention consists of a method for electrowinning or electrorefining of metals, particularly copper, comprising electrodepositing the metal from an electrolyte solution under conditions comprising high cathode and anode current densities and high velocity flow of electrolyte past the electrode surfaces. Current densities of about 60 to 400 amp/sq ft are employed, with electrolyte flow rates of at least 75 ft/min, preferably about 150 to 400 ft/min.

REFERENCES:
patent: 2445675 (1948-07-01), Lang
patent: 2535966 (1950-12-01), Teplitz
patent: 2592810 (1952-04-01), Kushner
patent: 3003939 (1961-10-01), Rouy et al.
patent: 3506546 (1970-04-01), Semienko et al.
patent: 3535222 (1970-10-01), Cooke et al.
Wesley et al., Proceeding American Electroplaters Society, vol. 36, pp. 80, 81, 82, 91 (1949).

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