PRODUCTION OF HIGH-PURITY LITHIUM DIFLUOROPHOSPHATE

摘要

Producing lithium fluorophosphate, comprises contacting the solid lithium fluoride having a water content of more than 1500 ppm, preferably 5000-15000 ppm with gas containing phosphorus pentafluoride. An independent claim is included for lithium difluorophosphate having a purity of 99.9-99.9995 wt.%, preferably 99.97-99.9995 based on anhydrous product.