Industrial Techniques

Recombination and application on mixed amine collector(cationic/anionic) for KCl flotation

  • JIN Yinghao ,
  • WANG Siyuan ,
  • YU Xuefeng ,
  • WANG Jinjing ,
  • WEI Zhengying ,
  • LIU Liwu ,
  • TIAN Haifeng ,
  • ZHA Fei
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  • 1.Qinghai Salt Lake Industry Group Company Limited,Geermu 816000,China
    2.Northwest Normal University Chemistry and Chemical Engineering,Lanzhou 730070,China

Received date: 2022-12-21

  Online published: 2023-10-16

Abstract

Potassium chloride is an important potash fertilizerand,which is mainly produced from salt lake brine by flotation methods.Collector plays a key role in the process of flotation.However,the flotation yield is markedly decreased at low temperatures when the octadecylamine is used as collector to produce potassium chloride.Therefore,the mixed collector(cationic/anionic) was developed in the production of potassium chloride with direct flotation at low temperature by reagent combination method.The optimum molar ratio of mixed collector was initially determined as dodecylamine:octadecylamine:sodium dodecyl sulfate=20%:60%:20% by contact angle and surface tension measurements.The flotation experiment showed that the flotation yield of mixed collector for KCl was significantly higher than the octadecylamine.The mixed collector had a higher capacity for potassium chloride when the liquid phase temperature was 5 ℃.

Cite this article

JIN Yinghao , WANG Siyuan , YU Xuefeng , WANG Jinjing , WEI Zhengying , LIU Liwu , TIAN Haifeng , ZHA Fei . Recombination and application on mixed amine collector(cationic/anionic) for KCl flotation[J]. Inorganic Chemicals Industry, 2023 , 55(10) : 93 -99 . DOI: 10.19964/j.issn.1006-4990.2022-0746

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