Method for producing potassium borofluoride by utilizing lithium hexafluorophosphate recovery acid mixture

Method for producing potassium borofluoride by utilizing lithium hexafluorophosphate recovery acid mixture

  • CN 104,891,517 A
  • Filed: 06/09/2015
  • Published: 09/09/2015
  • Est. Priority Date: 06/09/2015
  • Status: Active Application
First Claim
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1. utilize lithium hexafluoro phosphate to reclaim a method for mixing acid production potassium fluoborate, specifically comprise the following steps:

  • (flow process of client is launched)Prepare material requested;

    lithium hexafluoro phosphate reclaims mixing acid, Repone K, boric acid;

    Boric acid and lithium hexafluoro phosphate are reclaimed mixing acid and puts into reactor, stir 9-12h, temperature controls at 38-42 DEG C, and acid reaction occurs for both, generates fluoborate solution;

    Repone K is added distilled water and makes Klorvess Liquid, then by strainer, elimination was carried out to impurity, to obtain limpid Klorvess Liquid;

    Then Klorvess Liquid is put into the reactor filling fluoborate solution to stir, stirTemperature controls at 38-42 DEG C, generates potassium fluoborate solid and concentration of hydrochloric acid solution is increased to more than 25%;

    (5) adopt vacuum filtration potassium fluoborate crystallization to be separated with hydrochloric acid or Klorvess Liquid, a small amount of a little drip washing, 120 DEG C of vacuum-drying 2-2.5h, obtain potassium fluoborate product, and the hydrochloric acid soln that purity is higher.

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