Method for extracting potassium chloride from high-silt-content high-grade feldspar salt mine

Method for extracting potassium chloride from high-silt-content high-grade feldspar salt mine

  • CN 103,787,372 A
  • Filed: 02/19/2014
  • Published: 05/14/2014
  • Est. Priority Date: 02/19/2014
  • Status: Active Application
First Claim
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1. a method of extracting Repone K from height containing mud, low-grade sylvite ore, comprises the steps:

  • 1) sylvite ore is obtained to ore particles through broken, grinding;

    In described sylvite ore, silt content is 20~

    40wt%, and KCE content is 10~

    19wt%;

    2) ore particles and solvent being mixed with to mass concentration is 25~

    40% slip, removes the mud that is no less than 30% through desliming, obtains the concentrate after desliming;

    3) concentrate after desliming being mixed with to concentration with the common saturated mother liquor of Repone K and sodium-chlor is 20~

    30% flotation pulp, adds sludge inhibitor and collecting agent, then roughly selects, and obtains thick washed ore and ore deposit to be scanned;

    Selected more than one-level of described thick washed ore obtains selected foam, and described selected foam obtains Potassium Chloride Product through dehydration.

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