一种六氟磷酸锂的制备方法

By preparing lithium hexafluorophosphate in a fluorinated solvent, the problems of low reaction rate, high cost and poor safety in the existing technology have been solved, realizing efficient and safe production of lithium hexafluorophosphate, improving product yield and purity, and making it suitable for industrial applications.

CN117800367BActive Publication Date: 2026-07-17WANHUA CHEM GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WANHUA CHEM GRP CO LTD
Filing Date
2023-12-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing lithium hexafluorophosphate preparation processes suffer from low reaction rates, high costs, poor safety, and unstable product quality. In particular, the organic solvent method may produce harmful byproducts, affecting product purity and safety.

Method used

Lithium hexafluorophosphate is prepared by reacting phosphorus pentafluoride and lithium fluoride in a fluorinated solvent. By selecting a fluorinated solvent with a specific structure and controlling the reaction conditions, the reaction between the solvent and phosphorus pentafluoride is avoided, thereby improving the purity and safety of the product.

Benefits of technology

This method enables efficient and safe preparation of lithium hexafluorophosphate, reduces production costs, increases product yield and purity, and reduces the generation of waste, making it suitable for industrial production.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure QLYQS_1
    Figure QLYQS_1
Patent Text Reader

Abstract

本发明公开了一种六氟磷酸锂的制备方法,包括以下步骤:将氟化锂和含氟溶剂充分混合后,向混合液中通入五氟化磷,制备得到含有六氟磷酸锂的溶液。该方法的工艺路线所选的溶剂毒性低,可避免传统采用高毒的氟化氢作为溶剂,工艺安全环保,同时所用的溶剂对六氟磷酸锂的溶解度高,易于与产品分离,有利于提高六氟磷酸锂产品收率,得到的六氟磷酸锂产品酸度低,适于工业化生产。
Need to check novelty before this filing date? Find Prior Art