Question

What are the steps for extraction of zinc from sulphide ore after oncentration of ore write balance equation involve in the process?

Answer 1

Hi,

The answer is as follows

Since it's a sulphide ore it will be first heated strongly in the presence of oxygen.

This process is known as roasting .

Balanced equation-

2ZnS + 3O2 on heating 2ZnO + 2SO2

After this zinc oxide is reduced to Zinc using any reducing agent.

Normally Carbon is used.

Equation-

ZnO + C gives Zn + CO.

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