METHOD OF PRODUCTION OF THE ELECTROLYTE COMPONENT ON THE BASIS OF LITHIUM HEXAFLUOROPHOSPHATE Russian patent published in 2007 - IPC C01B25/445 C01D15/00 C01D15/04 

FIELD: chemical industry; other industries; methods of production of the electrolyte component on the basis of lithium hexafluorophosphate.

SUBSTANCE: the invention is pertaining to the method of production of the electrolyte component for the lithium sources of the electric current. The method of production of the electrolyte component on the basis of lithium hexafluorophosphate provides for the reaction of pyridinium hexafluorophosphate with lithium hydroxide in the dissolvent with the topping of the volatile fractions in the vacuum. In the capacity of the dissolvent use propilencarbonate. After termination of the reaction without the individual extraction of the lithium hexafluorophosphate conduct the azeotropic drying of the received solution. Then exercise the topping of the volatile products of the reaction with a part of propilencarbonate and formation of the lithium hexafluorophosphate in the propilencarbonate with its concentration corresponding to the saturated solution at the room temperature. The technical result of the invention is production of the component of the electrolyte in the form of the solution of the salt - LiPF₆ in the suitable dissolvent.

EFFECT: the invention ensures production of the component of the electrolyte in the form of the solution of the salt - LiPF₆ in the suitable dissolvent.

5 cl, 4 ex