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:
Gangue and flux
Gangue is the waste rock or materials overlying an ore or mineral body that are displaced during mining without being processed or simply rocky impurities.
Flux is any substance introduced in the smelting of ores to promate fluidity and to remove objectionable impurities.