extraction of metals and alloys Flashcards
the process by which sulfide ore is concentrated
froth flotation
the method used to separate ore from gangue by preferential wetting
froth flotation
Compound added to reduce the fusion temperature of the electrolytic bath in the extraction of aluminum
cryolite
the black powdery substance used for the reduction of zinc oxide during its extraction
coke
the substance is an alloy of zinc, copper, tin
bronze
electrolytic deposition of a superior metal on a base plate
electroplating
the process of heating an ore to a high temperature in the presence of air
roasting
the compound formed between reaction of calcium oxide and silicate
calcium silicate
middle region of a blast furnace
zone of fusion
zinc compound in zinc blende
zinc sulphide
most common ore of iron
haematite
the ore from aluminium must be treated with _______ solution so that pure aluminium oxide can be obtained
sodium hydroxide
what are the raw materials required for extraction of iron from haematite
coke, limestone, and hot air
the mineral present in haematite is _____ which is reduced by ____________ to iron
iron 2 oxide
carbon monoxide
