Title:
METHOD FOR PURIFYING DIFLUOROPHOSPHATE
Document Type and Number:
WIPO Patent Application WO/2016/175186
Kind Code:
A1
Abstract:
Provided is a method for purifying difluorophosphate which includes a step of mixing difluorophosphate containing impurities with at least one type of processing agent selected from the group consisting of a carbonate, hydroxide, or halogenide of an alkaline metal or an alkaline earth metal, and an amine, and separating the impurities. After mixing the impurities with the processing agent to form a salt or a complex, the salt or the complex is preferably filtered out by filtration. As the processing agent, the carbonate, hydroxide, or halogenide of alkaline metal is preferably used, and a carbonate, hydroxide, or halogenide of lithium is more preferably used.
Inventors:
TAKIZAWA HIROKI (JP)
YOSHIYAMA KAZUHIDE (JP)
KUDE KEISUKE (JP)
KASHIKURA WATARU (JP)
ABE TAKURO (JP)
SHIMODA MITSUHARU (JP)
OMAE OSAMU (JP)
UEHARA HIROYUKI (JP)
YOSHIYAMA KAZUHIDE (JP)
KUDE KEISUKE (JP)
KASHIKURA WATARU (JP)
ABE TAKURO (JP)
SHIMODA MITSUHARU (JP)
OMAE OSAMU (JP)
UEHARA HIROYUKI (JP)
Application Number:
PCT/JP2016/062982
Publication Date:
November 03, 2016
Filing Date:
April 26, 2016
Export Citation:
Assignee:
KANTO DENKA KOGYO KK (JP)
International Classes:
C01B25/455; H01M10/0567; H01M10/0568
Foreign References:
| JP2014132576A | 2014-07-17 | |||
| JP2015013795A | 2015-01-22 | |||
| JP2015013796A | 2015-01-22 | |||
| JP2015044701A | 2015-03-12 | |||
| JP2008222484A | 2008-09-25 |
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
Patent business corporation 翔和 international patent firm (JP)
Patent business corporation 翔和 international patent firm (JP)
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