Froth Floatation Process: Breaking Sulphide Ore using Acid

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SUMMARY

The froth flotation process effectively concentrates sulfide ores, specifically CuFeS2, by suspending crushed ore in water with pine oil and introducing air to create a froth. This froth, containing the concentrated ore, is skimmed off while the gangue sinks. The discussion highlights that the addition of dilute acid, such as nitric acid, is not a standard practice in this process, contradicting some claims. The primary reaction involves the interaction of the ore with the frothing agents rather than acid addition.

PREREQUISITES
  • Understanding of the froth flotation process
  • Knowledge of sulfide ore chemistry
  • Familiarity with the role of surfactants in mineral processing
  • Basic principles of ore concentration techniques
NEXT STEPS
  • Research the chemical interactions in froth flotation
  • Explore the role of pine oil in mineral separation
  • Study the effects of different surfactants on flotation efficiency
  • Investigate alternative methods for sulfide ore concentration
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This discussion is beneficial for mineral processing engineers, chemistry students, and professionals involved in metallurgy and ore concentration techniques.

lakshmi
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in froath floatation process of concentrating the sulphide ore how is froath containing sulphide ore broken by adding dilute acid what is the actual reaction
 
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Please refer to this site first: http://home.att.net/~cat6a/metals-IX.htm

I quote now, from http://www.citycollegiate.com/IX_copper.htm

"Finely divided CuFeS2 is concentrated by "Froth-floatation method". Crushed ore is suspended in water containing pine oil. A blast of air is passed through the suspension. The particles of ore get wetted by oil and floats as a froth which is skimmed. The gangue sink to the bottom."

And as far as I can recall, I never encountered an addition of nitric acid (or for that matter any acid) to the froth floatation mixture (containing pine oil and the crushed ore suspended in water).

Please clarify...

Cheers
Vivek
 
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