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An ore sample of galena (PbS) is contaminated with zinc blende (ZnS). Name one chemical which can be used to concentrate galena selectively by froth floatation method.

An ore sample of galena (PbS) is contaminated with zinc blende (ZnS). Name one chemical which can be used to concentrate galena selectively by froth floatation method.

Grade:11

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
7 years ago
chemical which can be used to concentrate galena selectively by froth floatation method.:=

The galena is concentrated by using a collector, potassium ethyl xanthate and sodium cyanamide and alkali as depressant.

The mixture, depresses the activity of ZnS.

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