C - Chemistry – Metallurgy – 22 – B
Inventor
C - Chemistry, Metallurgy
22
B
Inventor
Country: Finland
A method for precipitating iron from a zinc sulphate...
Equipment for the leaching of solid matter from sludge
Method for recovery of zinc by countercurrent leaching
Method for removing mercury from gas
Method for the leaching of solid matter from sludge
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