Title:
PRODUCTION OF AMINE OXIDE
Document Type and Number:
Japanese Patent JP3926414
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject compound with excellent long-term storage stability, useful as a surfactant, in the form of e.g. a detergent, by oxidizing a tertiary amine with H2O2 and adjusting to a specific pH range.
SOLUTION: This amine oxide represented by formula II is produced by reacting a tertiary amine (e.g. dimethyloctylamine), represented by formula I (R1 is a 8-26C alkyl, etc.; R2 is a 1-26C alkyl, etc.; R3 is 1-3C alkyl, etc.) with normally 35wt.% aqueous H2O2, in a molar ratio of 1:(1.0-1.05) at 50-80°C, followed by adjusting the system of pH9-13, preferably, pH10-12 by addition of an alkali, such as NaOH. To further suppress decomposition of the reaction product, the compound of formula II, it is preferable to add a metal blocking agent in an amount corresponding to 0.005-3wt.% of the compound of formula II.
More Like This:
| JP2007522194 | Manufacturing method of AQ4N |
| JP3926428 | PRODUCTION OF AMINE OXIDE |
Inventors:
Makoto Kubo
Hiroyuki Terasaki
Takaya Sakai
Akira Fujiu
Hiroyuki Terasaki
Takaya Sakai
Akira Fujiu
Application Number:
JP32373496A
Publication Date:
June 06, 2007
Filing Date:
December 04, 1996
Export Citation:
Assignee:
Kao Corporation
International Classes:
C07C291/04; C11D1/75; (IPC1-7): C07C291/04
Domestic Patent References:
| JP6107621A | ||||
| JP57054160A | ||||
| JP7165698A | ||||
| JP59167558A |
Attorney, Agent or Firm:
Kaoru Furuya
Takahiko Mizobe
Satoshi Furuya
Shinji Mochida
Takahiko Mizobe
Satoshi Furuya
Shinji Mochida
Previous Patent: REVOLUTION NUMBER DETECTION DEVICE OF AUTOMATIC TRANSMISSION
Next Patent: FOCAL-PLANE SHUTTER
Next Patent: FOCAL-PLANE SHUTTER