Process for purifying solutions of zinc sulphate
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United States of America Patent
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-
Jan 20, 1987
Grant Date -
N/A
app pub date -
Aug 1, 1984
filing date -
Aug 2, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for purifying aqueous solutions of zinc sulphate removed from leaching processes and containing metals such as Cu, Cd, Ti, Ni, Co, Ge, As, Sb which consists in cementing said metals with zinc dust and with a couple of activators chosen between Cu-As and Cu-Sb in one or more reaction vessels having a bottom portion of cylindrical shape, an intermediate portion of cone frustum shape, and a top portion having an enlarged section thereof.
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