Which of the following ore is concentrated using group 1 cyanide salt
Which of the following ore is concentrated using group 1 cyanide salt
Option 1 -
Calamine
Option 2 -
Sphalerite
Option 3 -
Siderite
Option 4 -
Malachite
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1 Answer
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Correct Option - 2
Detailed Solution:Sphalerite is ore of zinc consists of ZnS during its concentration group 1 cyanides are used as depressants like NaCN
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Na+ C + N + S ®NaSCN
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Ellingham diagram explains the feasibility of reduction process not the kinetics of process.
Malachite : CuCO3.Cu (OH)2
Azurite : 2CuCO3.Cu (OH)2
Cuprite : Cu2O
Copper pyrite : Cu2S.Fe2S3.
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