The lithium hexa- fluoro phosphate and the solvent dishes dressed with sauce of pyridine, the production method and production method of the lithium hexa- fluoro phosphate which uses the aforementioned solvent dishes dressed with sauce

摘要

(57) Abstract This invention regards the lithium hexa- fluoro phosphate solvent dishes dressed with sauce in order to produce the high purity lithium hexa- fluoro phosphate. As for this lithium and hexa- fluoro phosphate of pyridine, formula: With Li (C₅ H₅ N) PF₆ to be displayed, and process below: a) neutralizing hexa- fluoro phosphoric acid HPF₆ with pyridine, it produces with the method of producing the pirijiniumuhekisahuruoro phosphate which with formula C₅ H₅ NHPF₆ is displayed, and, b) lithium hydroxide, exchanging the pirijiniumuhekisahuruoro phosphate, with the lithium compound which is chosen from the lithium alcoholate and alkyl lithium, LiPF₆, transforming to C₅ H₅ N solvent dishes dressed with sauce, including process. Disassembling the solvent dishes dressed with sauce under the vacuum, it is possible to play back LiPF₆.