Which of the following ores cannot be concentrated by the froth flotation method?
- ACopper pyrites $(CuFeS_2)$
- BSilver glance $(Ag_2S)$
- CPyrolusite $(MnO_2)$
- DZinc blende $(ZnS)$
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Which of the following statements is not correct?
$(i)$ Froth-floatation is used for removing gangue from sulphide ore.
$(ii)$ Cresols are used to stabilise the froth.
$(iii)$ Sodium cyanide can be used as depressant for preferential separation.
$(iv)$ Aniline can be used as froth enhancer.
$(i)$ Froth-floatation is used for removing gangue from sulphide ore.
$(ii)$ Cresols are used to stabilise the froth.
$(iii)$ Sodium cyanide can be used as depressant for preferential separation.
$(iv)$ Aniline can be used as froth enhancer.
Which method is used for the concentration of the ore containing iron chromate $(FeCrO_4)$?
Easy
View Solution$A$ process used for the concentration of ore is
Easy
View SolutionThe froth flotation process used for the concentration of sulphide ore:
Medium
View SolutionIn the cyanide process for extraction of gold and silver from ores,the cyanide solution acts as a
Medium
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