REMOVAL OF IRON CONTENT IN FELDSPAR ORES BY LEACH ING WITH ORGANIC ACIDS


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Vapur H., Demirci S., Top S. , Altıner M.

XVI Balkan Mineral Processing Congress, Belgrade, Serbia And Montenegro, 15 - 17 June 2015, pp.761-766

  • Publication Type: Conference Paper / Full Text
  • City: Belgrade
  • Country: Serbia And Montenegro
  • Page Numbers: pp.761-766

Abstract

There are numerous physical and chemical separation methods for reducing iron content in feldspar ores. Generally, while -500+75 µm sized feldspar ores beneficiate by physical and physicochemical separation methods such as magnetic separation and flotation, -75 µm sized ones are discarded as slime sized tailings. In these research; oxalic, citric and glycolic acids which are principal organic acids to be used in leaching were used in these slime sized (-75 µm) feldspar ores in order to reduce iron amount. Temperature, pulp density, leaching time and acid molarity parameters were investigated by applying factorial design ANOVA-Yates test technique. As a result of the tests, effective parameters were determined and discussed. The best result was obtained as 67.90 % iron removal by using oxalic acid.