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ZnS and PbS a...

Question

ZnS and PbS are separated by using?

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Solution

$Z n S$ and $P b s$ are separated by froth flotation process, depressant helps to separate two sulphuric ores by selective preventative of froth formination by one come into forth, in order to separate two sulphur ores[Zns and Pbs].
$N a C N$ is used as depressant.

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