Which of the following is used as a depressant in the separation of $ZnS$ from $PbS$ in the froth flotation process?
- A$NaCN$
- B$Al_2O_3$
- C$Na[Ag(CN)_2]$
- D$Na_2S$
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The substance used as froth stabilisers in the froth-floatation process is
DifficultAIEEE 2012
View SolutionObserve the following statements regarding the purification of bauxite:
$I$. During Hall's process,silica is removed as $Si$ (vapour).
$II$. Bauxite ore contaminated with $Fe_2O_3$ is purified in Baeyer's process.
$III$. During Serpeck's process,$AlN$ is formed.
The correct answer is:
$I$. During Hall's process,silica is removed as $Si$ (vapour).
$II$. Bauxite ore contaminated with $Fe_2O_3$ is purified in Baeyer's process.
$III$. During Serpeck's process,$AlN$ is formed.
The correct answer is:
The substance which is mixed with the ore for the removal of impurities is termed as
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View SolutionWhat is concentration of ore?
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View SolutionFroth flotation process is used for the concentration of:
DifficultIIT 1989
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