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nickel hydroxide sludge recycling

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emjaypee

Mechanical
Joined
Jan 15, 2002
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1
Location
GB
Could anyone shed any light on the easiest and most cost effective method of : 1.Recycling nickel hydroxide sludge.
2.Removing the nickel from nickel hydroxide sludge.
Thanks for your help......
 
Presumably this hydroxide sludge is from a lime precipitation process, thus is a nightmare to handle. Have you looked at ammoniacal leaching and subsequent electro-winning to recover nickel. Process would however depend on nickel strength and other impurities
 
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