Title:
METHOD FOR PRODUCING HIGH-PURITY QUATERNARY AMMONIUM SALT
Document Type and Number:
WIPO Patent Application WO/2008/035796
Kind Code:
A1
Abstract:
Disclosed is a method for producing a high-purity quaternary ammonium salt, which is characterized in that (1) an oxide or hydroxide of a group 1, 2, 12 or 13 metal is added into a quaternary ammonium salt which contains a protonic acid salt of a tertiary amine as an impurity, thereby neutralizing the protonic acid salt of a tertiary amine with the oxide or hydroxide of the metal and converting the protonic acid salt into a tertiary amine and water, while converting the oxide or hydroxide of the metal into a metal salt; and then (2) the thus-produced tertiary amine, water and metal salt are removed from the system.
Inventors:
NISHIDA TETSUO (JP)
HIRANO KAZUTAKA (JP)
OKA AKINORI (JP)
ABE YOSHINOBU (JP)
NABESHIMA AKIHIRO (JP)
HIRANO KAZUTAKA (JP)
OKA AKINORI (JP)
ABE YOSHINOBU (JP)
NABESHIMA AKIHIRO (JP)
Application Number:
PCT/JP2007/068596
Publication Date:
March 27, 2008
Filing Date:
September 18, 2007
Export Citation:
Assignee:
OTSUKA CHEMICAL CO LTD (JP)
STELLA CHEMIFA CORP (JP)
NISHIDA TETSUO (JP)
HIRANO KAZUTAKA (JP)
OKA AKINORI (JP)
ABE YOSHINOBU (JP)
NABESHIMA AKIHIRO (JP)
STELLA CHEMIFA CORP (JP)
NISHIDA TETSUO (JP)
HIRANO KAZUTAKA (JP)
OKA AKINORI (JP)
ABE YOSHINOBU (JP)
NABESHIMA AKIHIRO (JP)
International Classes:
C07C213/10; C07C209/12; C07C209/84; C07C211/63; C07C217/08; C07D207/06; C07D233/58; H01G11/62; H01B1/20; H01B13/00; H01G9/00; H01G9/035
Foreign References:
| JP2004186246A | 2004-07-02 | |||
| JP2006257039A | 2006-09-28 | |||
| JP2006143647A | 2006-06-08 | |||
| JP2000226360A | 2000-08-15 | |||
| JPH10287630A | 1998-10-27 | |||
| JP2000311839A | 2000-11-07 | |||
| JP2004186246A | 2004-07-02 |
Other References:
See also references of EP 2072496A4
Attorney, Agent or Firm:
TAMURA, Iwao (Terauchi 1-chome Toyonaka-sh, Osaka 72, JP)
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