Catalysts for water dealkylation of aromatic hydrocarbons

Details Catalysts for water dealkylation of aromatic hydrocarbons Catalysts for water dealkylation of aromatic hydrocarbons

1980-05-29

1982-01-19

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

585487, B01J 2104, B01J 2342, B01J 2344, B01J 2346

Patent

active

043116140

ABSTRACT:
A water dealkylation catalyst of aromatic hydrocarbons containing at least one metal of Group VIII and eventually, one metal of group VII.sub.b deposited on a gamma alumina of special properties containing at least 1000 ppm of sulfate ions having undergone a pre-treatment in aqueous medium at a pH between 1 and 10 at a temperature below 100.degree. C. The catalysts contain rhodium on pre-treated gamma alumina and the bimetallic catalysts contain 2 metals of the group VIII or one metal of the group VII and one metal of the group VII.sub.b on pre-treated gamma alumina.

REFERENCES:
patent: 2436923 (1948-03-01), Haensel
patent: 2922767 (1960-01-01), Koch
patent: 3436434 (1969-04-01), Lester
patent: 3595932 (1971-07-01), Maslyansky et al.

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