Abstract:
A process for the transalkylation of aromatic hydrocarbons of nine carbon atoms which comprises heat contacting the starting feed containing at least one aromatic hydrocarbon of nine carbon atoms as a main component in the presence of hydrogen gas with a catalyst selected from the group consisting of: A. DEALKALIZED MORDENITES, B. COMPOSITIONS COMPOSED OF A DEALKALIZED MORDENITE AND AT LEAST ONE METAL SELECTED FROM METALS OF Group Ib or VIa of the Periodic Table, and C. COMPOSITIONS COMPOSED OF A DEALKALIZED MORDENITE, AN ALUMINUM FLUORIDE AND AT LEAST ONE METAL SELECTED FROM METALS OF Group Ib or VIa of Mendelejeff''s Periodic Table.
Abstract:
1,141,421. Hydrogenation catalysts. TOYO RAYON K.K. 26 Jan., 1967 [27 Jan., 1966; 4 Nov., 1966 (2)], No. 4026/67. Heading C5E. [Also in Division B1] The nucleus of aromatics is hydrogenated at 50-300‹ C. in the presence of a catalyst containing 2-60% Ni, Fe, Co or Cn, 2-80% NaF or an alkaline earth metal fluoride and 12-96% SiO 2 or Al 2 O 3 . Specified aromatics are benzene, toluene, xylene, trimethyl benzene, tetramethylbenzene, pentamethyl benzene, ethyl benzene, n-propyl benzene, cumene, n-butyl benzene, t-butyl benzene, pregnene, 1: 3: 5-triethyl benzene, styrene, diphenyl methane, indene, naphthalene and methyl naphthalene. Examples describe the preparation of cyclohexane, methylcyclohexane, dimethylcyclohexane and ethyl cyclohexane.