Manufacturing method for lithium difluorophosphate powder, and lithium difluorophosphate

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United States of America Patent

PATENT NO 10329155
APP PUB NO 20170334723A1
SERIAL NO

15533627

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Abstract

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To provide a manufacturing method with which lithium difluorophosphate powder can be recovered from a lithium difluorophosphate solution. A method for manufacturing lithium difluorophosphate powder is used which includes the steps of precipitating solid lithium difluorophosphate by adding a poor solvent to a solution in which lithium difluorophosphate is dissolved in a main solvent, and obtaining lithium difluorophosphate powder by solid-liquid separation of the solid lithium difluorophosphate from the liquid containing the main solvent and the poor solvent, wherein the relational expression between the octanol/water partition coefficient PP of the main solvent and the octanol/water partition coefficient PA of the poor solvent is defined by the following formula (1).

description='In-line Formulae' end='lead'PA≥−4/3×PP+1.2  (1):description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
CENTRAL GLASS COMPANY LIMITEDUBE-SHI YAMAGUCHI 755-0001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ikeda, Yuta Ube, JP 35 15
Morinaka, Takayoshi Ube, JP 47 152
Nakahara, Keita Ube, JP 14 23
Nishimura, Natsuya Ube, JP 10 55

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