Method for treating a solution containing zinc sulphate
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United States of America Patent
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Apr 11, 2017
Grant Date -
Aug 1, 2013
app pub date -
Oct 7, 2011
filing date -
Oct 12, 2010
priority date (Note) -
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Abstract
The invention relates to a method for treating a solution containing zinc sulphate, so that at least one of the rare metals such as indium, gallium and germanium can be separated from it. A portion of the metals to be separated can be precipitated from zinc sulphate solution by neutralizing the acidic solution and at least a portion is cemented by means of metal powder. The solid precipitates that are formed can be combined and treated subsequently in some suitable way to leach out the desired metals.
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