Why NaCN is used as a depressant?

Why NaCN is used as a depressant?

The complex is formed which prevents ZnS from coming to froth. Therefore NaCN acts as a depressant which prevents ZnS in froth floatation reaction. Depressant used for this purpose is NaCN. It selectively prevents ZnS from coming to the froth.

What is the frothing agent used in the froth floatation process?

So, the oil used as a frothing agent in the Froth flotation process is pine oil.

Which depressant is used in ore containing ZnS and PbS?

sodium cyanide
A common depressant used in the froth floatation of lead sulphide is sodium cyanide. When the ore containing ZnS and PbS is subjected to froth floatation process in the presence of NaCN, then only PbS forms the froth.

How does NaCN act as a depressant in preventing ZnS from forming the froth?

How does NaCN act as a depressant in preventive ZnS from forming the froth? NaCN forms a layer of Zinc complex, Na2Zn(CN)4 on the surface of ZnS and thereby prevents it from the formation of froth.

Which of the following chemical is used as a depressant in separating ZnS from PbS in froth floatation process?

Answer : Sodium cyanide(NaCN) is used to separate ZnS and PbS ores in Froth floatation process. A depressant is used to separate two sulphide ores like ZnS and PbS.

What is the name of the oil used in the froth floatation process?

Pine oil
Pine oil is used in the froth floatation process used to concentrate sulphide.

What is depressant used in metallurgy of Galena?

Sodium cyanide is used as depressant.

Which of the following acts as depressant in froth floatation of Galena which contain ZnS?

In order to concentrate galena (which contains ZnS as impurity) by froth-floatation process, sodium cyanide is used as depressant.

How do we separate PbS from ZnS in froth floatation process?

Answer : Sodium cyanide(NaCN) is used to separate ZnS and PbS ores in Froth floatation process.

What is depressant in chemistry?

A depressant is any chemical which inhibits or prevents the adsorption of a collector by a mineral particle and thereby prevents its flotation.

Which depressant uses separation of ZnS and PbS?

Name the depressa Answer : Sodium cyanide(NaCN) is used to separate ZnS and PbS ores in Froth floatation process. A depressant is used to separate two sulphide ores like ZnS and PbS. It does so by selectively preventing froth formation of one ore while allowing the other to come up with froth.

Which one of the following is used as conditioner in froth floatation process?

Sodium ethyl xanthate is used as collector of froth ….

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