The following record is from the CAplusSM database
CAPLUS COPYRIGHT 2009 ACS
| PATENT NUMBER: |
US 7586014 |
| TITLE: |
The liquid phase selective hydroxylation of benzene |
| INVENTOR(S): |
Arunabha, Datta; Sakthivel, S.; Kumar, Satyarthi Jitendra |
| PATENT ASSIGNEE(S): |
Council of Scientific and Industrial Research, India |
| SOURCE: |
U. S. Pat. Appl. Publ., 4pp. CODEN: USXXCO |
| LANGUAGE: |
English |
ABSTRACT:
The process provides a direct single step selective liq. phase hydroxylation of benzene to phenol using environmentally friendly green oxidant, H2O2, and vanadyl pyrophosphate as the catalyst under mild reaction conditions. The process comprises reacting benzene with H2O2 in an org. solvent with molar ratio of benzene to H2O2 1:2-5, in the presence of vanadyl pyrophosphate catalyst with benzene to catalyst molar ratio 400-1600, at 50-70.degree., while agitating the reaction mixt., for 1-12 h, followed by cooling in cold water at 0-10.degree.. The process provides benzene conversion of 30-70% and selectivity for phenol of .ltoreq.100%. |
| View the full-text patent from USPTO. |
Updated: 9/29/2009 10:17:55 AM
