journal6 ›› 2007, Vol. 28 ›› Issue (2): 105-108.

• Chemistry and chemical engineering • Previous Articles     Next Articles

Influence on Leaching of Chromium Ion in the Manganese Residue with the Additive


  1. (1.College of Biology and Environmental Sciences,Jishou University,Jishou  416000,Hunan China;2.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China)
  • Online:2007-03-25 Published:2012-06-18

Abstract: Influence of additive dosage,leaching time and temperature,acid/ore ratio on Chromium ion leaching rate was investigated with 8-hydroxquinoline,potassium ethyl xanthate,hexadecyltrimethyl ammonium bromide,tributyl phosphate and lemon acid as additive.The results showed that leaching rate of Cr6+ reaches 38.11% when addition 0.8% potassium ethyl xanthate in temperature is 60 ℃,acid/ore ratio is 0.3∶1,liquid/solid ratio is 1∶4,and leaching time is 90 min;the leaching rate is 1.5 times of that obtained by heating leaching.

Key words: additive, manganese residue, chromium ion, heating leaching

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