六氟磷酸锂非水溶剂法的合成工艺

Synthetic process of lithium hexafluorophosphate

  • Inventors: YUAN XIANGYUN
  • Assignees: 袁翔云
  • Publication Date: May 06, 2009
  • Publication Number: CN-101423207-A

Abstract

The invention discloses a synthesis process of a lithium hexafluorophosphate non-aqueous solvent method. The gas-phase phosphorus pentafluoride is arranged in a super-micro bubble generation device to generate micro-bubbles with the diameter of 0.1-2000 microns; subsequently, the phosphorus pentafluoride reacts with lithium fluoride which is dissolved in anhydrous hydrogen fluoride in advance in a reaction unit to generate a lithium hexafluorophosphate crude product which is frozen and then separated by a solid liquid separation device; the solid gained by separation is transferred to a drying device and dried, thus gaining the lithium hexafluorophosphate solid. The process has the advantages that the interface mixing efficiency is high, the reaction speed is high, the jamming phenomenon of solid outcome is not generated, the continuous production is easy to achieve, and the generated solid has uniform granularity and high purity.
本发明公开了六氟磷酸锂非水溶剂法的合成工艺,将气态五氟化磷通入超微气泡发生装置中,产生直径为0.1~2000μm的微气泡后,与事先溶解于无水氟化氢的氟化锂在反应装置中反应生成六氟磷酸锂粗品,将六氟磷酸锂粗品冷冻,再经固液分离装置分离,分离所得固体转移至干燥装置中进行干燥处理,得到六氟磷酸锂固体,本发明的优点是界面混合效率高,反应速度快,不会产生固体产物的堵塞现象,容易实现连续化生产,产生的固体颗粒均匀,纯度高。

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-102153064-AAugust 17, 2011张家港市亚源高新技术材料有限公司Synthesis method of a lithium hexafluorophosphate non-aqueous solvent method
    CN-102502566-AJune 20, 2012江苏九九久科技股份有限公司六氟磷酸锂的合成工艺