If both ore and gangue contain sulphur then ___ is used to separate ore from gangue in the froth flotation process.
Froth stabilizers
oils
depressants
Any of the above.
Generally, if two or more sulphides are present in the ore then the depressants are used for formation of the froth of selective compounds.
In the froth flotation process, stabilizers are used to attach ore particles to air bubbles in the froth.
In the froth flotation process, froth stabilizers and depressants must be added