Nippon Soda Co., Ltd.

Hideki Maekawa

Masamichi Yasuhara

Kenichi Hayashi

Hiroyuki Yamanaka

Satoru Yamazaki

Kimihiko Oohata

Makoto Toyooka

Minoru Okada

Ken-ichi Hayashi

Ken-Ichi Hayashi

Misamichi Yasuhara

The present invention provides a method for producing a disulfonylamine alkali metal salt, including a step of subjecting a disulfonylamine onium salt represented by formula [I] (wherein each of Rand Rindependently represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, provided that at least one of Rand Rrepresents a fluorine atom, and each of R, R, Rand Rindependently represents a hydrogen atom or the like) to a cation exchange reaction in an organic solvent, thereby producing a disulfonylamine alkali metal salt represented by formula [II] (wherein Mrepresents an alkali metal cation, and Rand Rare as defined in formula [I]), and a step of filtering the organic solvent solution containing the disulfonylamine alkali metal salt through a filter having a particle retention size of 0.1 to 10 &#x3bc;m to obtain a filtrate. 

Method for producing disulfonylamine alkali metal salt

The present invention provides a polydialkylsilane, and a method for producing a polydialkylsilane, including a step of adding a compound represented by formula (I) (in formula (I), Rand Rindependently represent an alkyl group, and Xand Xindependently represent a halogen atom) to an organic solvent containing an alkali metal, in which 0.010 [hr]&#x2266;the average addition rate of compound (I) [moles&#xb7;hr]/the amount of the alkali metal [moles]&#x2266;0.055 [hr]. 

Method for producing polydialkylsilane

A process for producing a cyclic silane compound, in which a chained polysilane is subjected to pyrolysis in the presence of an oxide of a transition metal belonging to Group 8 or Group 11 of the periodic table; and a process for producing a cyclic carbosilane compound, that includes subjecting a chained polysilane to pyrolysis in the presence of a simple substance of a metal selected from the group consisting of transition metal elements and elements belonging to Groups 12 to 15 of the periodic table, or a compound thereof.

Process for production of cyclic silane compound and/or cyclic carbosilane compound

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Joetsu, Japan

Hideki Maekawa