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1. (WO2016093025) MANUFACTURING METHOD FOR LITHIUM DIFLUOROPHOSPHATE POWDER, AND LITHIUM DIFLUOROPHOSPHATE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2016/093025    International Application No.:    PCT/JP2015/082230
Publication Date: 16.06.2016 International Filing Date: 17.11.2015
IPC:
C01B 25/455 (2006.01), H01M 10/0567 (2010.01)
Applicants: CENTRAL GLASS COMPANY, LIMITED [JP/JP]; 5253, Oaza Okiube, Ube-shi, Yamaguchi 7550001 (JP)
Inventors: NAKAHARA, Keita; (JP).
MORINAKA, Takayoshi; (JP).
IKEDA, Yuta; (JP).
NISHIMURA, Natsuya; (JP)
Agent: KOBAYASHI, Hiromichi; (JP)
Priority Data:
2014-248913 09.12.2014 JP
Title (EN) MANUFACTURING METHOD FOR LITHIUM DIFLUOROPHOSPHATE POWDER, AND LITHIUM DIFLUOROPHOSPHATE
(FR) PROCÉDÉ DE FABRICATION DE POUDRE DE DIFLUOROPHOSPHATE DE LITHIUM ET DIFLUOROPHOSPHATE DE LITHIUM
(JA) ジフルオロリン酸リチウム粉体の製造方法およびジフルオロリン酸リチウム
Abstract: front page image
(EN)[Problem] To provide a manufacturing method with which lithium difluorophosphate powder can be recovered from a lithium difluorophosphate solution. [Solution] A manufacturing method for lithium difluorophosphate powder, said method characterized by including a step in which solid lithium difluorophosphate is precipitated by adding a poor solvent to a solution in which lithium difluorophosphate is dissolved in a main solvent, and a step in which lithium difluorophosphate powder is obtained 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 formula (1): PA ≥ -4/3 × PP + 1.2.
(FR)L'invention concerne un procédé de fabrication permettant de récupérer une poudre de difluorophosphate de lithium à partir d'une solution de difluorophosphate de lithium. Le procédé de fabrication de poudre difluorophosphate de lithium selon l'invention se caractérise en ce qu'il comprend : une étape lors de laquelle du difluorophosphate de lithium solide est précipité par addition d'un solvant pauvre à une solution dans laquelle du difluorophosphate de lithium est dissous dans un solvant principal ; et une étape lors de laquelle de la poudre de difluorophosphate de lithium est obtenue par séparation solide-liquide du difluorophosphate de lithium solide du liquide contenant le solvant principal et le solvant pauvre, l'expression relationnelle entre le coefficient de partage octanol/eau PP du solvant principal et le coefficient de partage octanol/eau PA du solvant pauvre étant définie par la formule (1) : PA ≥ -4/3 × PP + 1,2.
(JA)【課題】ジフルオロリン酸リチウム溶液から、ジフルオロリン酸リチウム粉体を回収できる製造方法を提供する。 【解決手段】主溶媒にジフルオロリン酸リチウムが溶解した溶液に、貧溶媒を添加して、固体状のジフルオロリン酸リチウムを析出させる工程と、前記固体状のジフルオロリン酸リチウムを、前記主溶媒及び前記貧溶媒を含む液体から固液分離して、ジフルオロリン酸リチウム粉体を得る工程と、を含み、前記主溶媒のオクタノール/水分配係数PPと、前記貧溶媒のオクタノール/水分配係数PAとの関係式が、以下の式(1)のとおりであることを特徴とするジフルオロリン酸リチウム粉体の製造方法を用いる。 PA≧-4/3×PP+1.2 ・・・(1)
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)