Explain roasting, froth flotation in extraction of metals.

define roasting

Discuss froth floatation process for extraction of metals.

Explain the role of the following in the extraction of metals from their ores : CO in the extraction of nickel.

Explain calcination, magnetic separation in extraction of metals.

Explain thermalreduction, gravity separation in extraction of metals.

Define roasting.

Define the term levigation used in extraction of metals.

Explain gravity separation (or hydraulic washing) in extraction of metals.

Which process is used for the enrichment of suphide ore.explain in brief two steps involved in the extraction of metal from enriched suphide ore

What should be the considerations during the extraction of metals by electrochemical method ?