Which method of metal refining is generally used when a metal of high degree of purity is needed?
Explain the following:
Partial roasting of sulphide ore is done in the metallurgy of copper.
How will you differentiate between:
Flux and slag
Flux is any substance introduced in the smelting of ores to promate fluidity and to remove objectionable impurities.
Slag Waste content of metal ores that floats on the surface during the process of extracting or refining metal. Slag containing mainly sillicates, sulfates, and phosphates of calcium.