ZEOLITE CATALYST FOR PRODUCTION OF PHENOL AND DERIVATIVES

摘要

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 225-450 .degree.C. having substant ially enhanced process characteristics resulting from hy drothermal treatment using a gas containing from about 3 to 100 mole percent water vapo r, e.g. in nitrogen, at a temperature ranging from about 500 to 1000 .degree.C. Two hours of hydrothermal treatment has been shown to be effective.