Question
Chemistry Question on General Principles and Processes of Isolation of Elements
The statement that is NOT correct is
A
Collectors enhance the wettability of mineral particles during froth flotation
B
Copper from its low grade ores is extracted by hydrometallurgy
C
A furnace lined with Haematite is used to convert cast iron to wrought iron.
D
In vapour phase refining, metal should form a volatile compound
Answer
Collectors enhance the wettability of mineral particles during froth flotation
Explanation
Solution
In froth flotation method, the substances like pine oil, xanthates and fatty acids are collectors. These substances attach themselves by polar groups to grain the minerals which then become water repellant and thus pass on into the froth. Thus, in other words, collectors enhance the non wettability of mineral acids.