Title:
【発明の名称】テトラアルキルアンモニウムハイドロキサイド水溶液の製造方法
Document Type and Number:
Japanese Patent JP3290183
Kind Code:
B2
Abstract:
There is provided a simple method of producing in a good yield a tetraalkylammonium hydroxide aqueous solution in which the content of metal ions such as alkali metal ions is reduced to an extremely low level. High-purity trialkylamine and high-purity alkyl chloride are reacted with each other in ultrapure water to obtain an extremely high-purity tetraalkylammonium chloride aqueous solution substantially free from metal ions such as alkali metal ions, and then, the tetraalkylammonium chloride aqueous solution is subjected to electrolysis-dialysis in a solution state without drying it into a solid to produce a tetraalkylammonium hydroxide aqueous solution. Thereby, an extremely high-purity tetraalkylammonium hydroxide aqueous solution with little reduction in purity is obtained in a high yield.
Inventors:
Toru Nonaka
Yasunori Hirata
Masashi Shibuya
Yasunori Hirata
Masashi Shibuya
Application Number:
JP50679498A
Publication Date:
June 10, 2002
Filing Date:
July 18, 1997
Export Citation:
Assignee:
Tokuyama Corporation
International Classes:
C07C209/08; C07C209/84; C07C211/63; (IPC1-7): C07C211/63; C07C209/68
Domestic Patent References:
| JP59193289A | ||||
| JP63233956A | ||||
| JP50149605A |
Attorney, Agent or Firm:
Masataka Oshima
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