Title:
OXAMIDINATION PROCESS OF CARBONYL COMPOUNDS
Document Type and Number:
WIPO Patent Application WO/2003/101938
Kind Code:
A1
Abstract:
This invention relates to a oxamidination method of carbonyl compounds comprising reacting a liquid-phase reaction system containing carbonyl compounds, ammonia and hydrogen peroxide in the presence of silicon containing catalyst, which characterized in that a liquid silicon-containing assistant is added to the reaction system, thereby the silicon concentration of the system arrived at 0.1-10000ppm. The method allows to reduce inactivation of catalyst caused by dissolution of silicon contained in the catalyst, extend catalyst life and improve stable operating time.
Inventors:
WU WEI
SUN BIN
LI YONGXIANG
CHENG SHIBIAO
WANG ENQUAN
ZHANG SHUZHONG
SUN BIN
LI YONGXIANG
CHENG SHIBIAO
WANG ENQUAN
ZHANG SHUZHONG
Application Number:
PCT/CN2003/000423
Publication Date:
December 11, 2003
Filing Date:
May 30, 2003
Export Citation:
Assignee:
CHINA PETROLEUM & CHEMICAL (CN)
RES INST PETROLEUM PROCESSING (CN)
RES INST PETROLEUM PROCESSING (CN)
International Classes:
C07B61/00; C07C249/04; C07C249/08; C07C251/34; C07C251/38; C07C251/42; C07C251/44; C07C251/48; C07C253/22; (IPC1-7): C07C249/04; C07C251/34
Foreign References:
| US5498793A | 1996-03-12 |
Other References:
See also references of EP 1541548A4
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (Great Eagle Centre 23 Harbour Roa, Wanchai Hong Kong, CN)
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