46038

Lead anode in nickel electrowinning [Malaysia] 

August 6, 2007

In my experiment, i use lead anode to electroplate ou the nickel from nickel sulfate solution . However the lead is also deposited on the cathode which contaiminate the purity of my electroplated nickel product. As i know, the dissociation of the lead anode will compound the lead sulfate which is in solid form without chemically pollute the electrolyte. But in fact, my plating product did contain the 1 % of pb in the nickel metal.

My question is what do i do to eliminate the pb ions in the electrolyte to prevent it from plating on the cathode?

Thanks to anyone who answer my question.

HF Ang
Chemist - Malaysia

Platinized titanium anodes would probably solve this problem, HF.

Ted Mooney, P.E.  finishing.com Brick, NJ

Thanks Mr Mooney. To cut cost of my electrowinning unit,lead anode will be more suitable to use. Is it possible to use the lead anode without contaminated the electroplated product?

HF Ang
Chemist - Malaysia