Zeolite catalyst for production of phenol and derivatives
||CA 2187649 C
||Apr 12, 1995
||Jun 19, 2001
Zeolite catalysts useful for the production of phenol and its derivatives by oxidative hydroxylation of benzene and its derivatives by nitrous oxide, e.g. at temperatures of 225 DEG -450 DEG C., having substantially enhanced process characteristics resulting from hydrothermal treatment using a gas containing from about 3 to 100 mole percent water vapor, e.g. in nitrogen, at a temperature ranging from about 500 DEG to 1000 DEG C. Two hours of hydrothermal treatment has been shown to be effective.