C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 25/455 (2006.01)
Patent
CA 2677301
Disclosed is a method for producing a hexafluorophosphate salt (MPF6: M = Li, Na, K, Rb, Cs, NH4, Ag), which uses at least an aqueous HxPOyFz solution, an aqueous hydrofluoric acid solution and MF r(HF) as raw materials (provided that r >= 0, 0 <= x <= 3, 0 <= y <= 4 and 0 <= z <= 6). This method enables to produce a hexafluorophosphate salt (MPF6: M = Li, Na, K, Rb, Cs, NH4, Ag) having excellent workability at low cost from easily available raw materials, and the reaction can be controlled in this method.
La présente invention concerne un procédé de production d'hexafluorophosphate (MPF6: M = Li, Na, K, Rb, Cs, NH4, Ag), utilisant comme matière première au moins une solution aqueuse de HxPOyFz, une solution aqueuse d'acide fluorhydrique et MF r(HF), à condition que r >= 0, 0 <= x <= 3, 0 <= y <= 4 et 0 <= z <= 6. Ce procédé permet la production d'hexafluorophosphate (MPF6: M = Li, Na, K, Rb, Cs, NH4, Ag) se prêtant très bien à l'usinage à faible coût à partir de matières premières s'obtenant facilement, et la réaction peut être contrôlée dans ce procédé.
Aoki Kenji
Miyamoto Kazuhiro
Waki Masahide
Marks & Clerk
Stella Chemifa Corporation
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