Zinc anode benefaction

C - Chemistry – Metallurgy – 25 – D

Patent

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204/37

C25D 3/22 (2006.01)

Patent

CA 1076516

ZINC ANODE BENEFACTION Abstract of the Disclosure - This invention relates to an improved method of electroplating zinc while simultaneously effecting enhanced anode corrosion characteristics, which comprises passing current from a zinc anode to a metal cathode through a plating solution containing at least one organic brightener, a chloride-containing salt providing chloride anions and boric acid as a buffer in the absence of ammonium cations, chelating agents, and complexing agents for a time period sufficient to deposit a zinc electrodeposit upon said cathode; the improvement consisting of the current passing through an aqueous acidic bath composition containing zinc sulfamate providing zinc cations for electroplating zinc. - i -

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