Stella Chemifa Corporation

Tatsuhiro Yabune

Kazutaka Hirano

Masahide Waki

Kazuhiro Miyamoto

Disclosed is a process for producing a fluoride gas that can produces fluoride gases such as BF, SiF, GeF, PFor AsFat a reduced production cost in a simple manner. The process is characterized in that a compound containing an atom, which, together with a fluorine atom, can form a polyatomic ion, is added to a hydrogen fluoride solution to produce the polyatomic ion in a hydrogen fluoride solution and to evolve a fluoride gas comprising the fluorine atom and the atom that, together with the fluorine atom, can form a polyatomic ion.

Process for producing fluoride gas

An object is to provide a method of manufacturing a hexafluorophosphate, that can simply and easily manufacture an inexpensive and high-quality hexafluorophosphate while suppressing the manufacturing cost, an electrolytic solution containing a hexafluorophosphate, and an electricity storage device including the electrolytic solution. The present invention relates to a method of manufacturing a hexafluorophosphate, which comprises reacting at least a phosphorus compound with a fluoride represented by MF.r(HF) (wherein 0&#x2266;r&#x2266;6, 1&#x2266;s&#x2266;3, and M is at least one kind selected from the group consisting of Li, Na, K, Rb, Cs, NH, Ag, Mg, Ca, Ba, Zn, Cu, Pb, Al and Fe) to produce a hexafluorophosphate represented by the chemical formula M(PF).

Process for production hexafluorophosphates

A method of manufacturing phosphorus pentafluoride and hexafluorophosphate can suppress the manufacturing cost and also can manufacture high-quality phosphorus pentafluoride from an inexpensive and low-quality raw material. The raw material for the method can include at least a phosphorus atom and a fluorine atom. These are brought into contact with a carrier gas, and a phosphorus pentafluoride is extracted and separated into the carrier gas. A method of manufacturing hexafluorophosphate includes reacting fluoride with the resulting phosphorus pentafluoride according to the following chemical reaction scheme: sPF+AF&#x2192;A(PF), in which s is in the range of 1&#x2266;s&#x2266;3, and A is at least one of the following: Li, Na, K, Rb, Cs, NH, Ag, Mg, Ca, Ba, Zn, Cu, Pb, Al and Fe.

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Izumiotsu, Japan

Tatsuhiro Yabune