Home
Class 12
CHEMISTRY
During the concentration of sulphide ore...

During the concentration of sulphide ores by froth floatation process, the separation of sphalerite and galena is achieved by which of the following substances used as depressant?

A

Potassium xanthate

B

Sodium cyanide

C

Copper sulphate

D

Pine oil

Text Solution

Verified by Experts

The correct Answer is:
B
Collector, that is, xanthate acts only on solid particles through adsorption. The two ores show different reactivity towards NaCN:
`ZnS + 4NaCN to Na_2S+ underset("(Soluble complex)")(Na_2Zn(CN)_4)`
`PbS+ NaCN to " No reaction "`
Promotional Banner

Similar Questions

Explore conceptually related problems

Explain froth floatation process for the concentration of Ore.

What is the role of depressant in froth floatation process?

Froth floatation process for the concentration: of ores'is an illistration of the práctical application of

Froth floatation process is convenient for the concentration of sulphide ores. Describe?

In the froth floatation process for benefication of the ores, the ore particles float because