Abstract: An aromatic hydrocarbon is contacted under hydroalkylation conditions and in the presence of hydrogen with a catalyst comprising at least one ruthenium compound and at least one nickel compound supported on a calcined, acidic, rare earth-treated crystalline zeolite.

Abstract: An aromatic hydrocarbon is contacted under hydroalkylation conditions and in the presence of hydrogen with a composition comprising at least one ruthenium compound impregnated on a calcined, acidic, nickel and rare earth-treated crystalline zeolite support.

Abstract: Phenol-, cyclohexanone-, and cyclohexylbenzene-containing mixtures are extractively distilled to provide overhead of cyclohexanone and a kettle product substantially free of cyclohexanone by employing an N,N-disubstituted amide. When substantially no cyclohexylbenzene is present in the mixture to be extractively distilled, the kettle product will be essentially composed of the amide and phenol.

Abstract: An aromatic hydrocarbon is contacted under hydroalkylation conditions and in the presence of hydrogen with a composition comprising at least one platinum compound supported on a calcined, acidic, nickel and rare earth-treated crystalline zeolite which additionally has a halide content sufficient to promote the selectivity of the composition to produce a desired cycloalkyl aromatic hydrocarbon.

Abstract: An aromatic hydrocarbon is contacted under hydroalkylation conditions and in the presence of hydrogen with a composition comprising at least one rhodium or palladium compound or mixture thereof supported on a calcined, acidic, nickel and rare earth-treated crystalline zeolite.

Abstract: An aromatic hydrocarbon is contacted under hydroalkylation conditions and in the presence of hydrogen with a composition comprising at least one platinum compund supported on a calcined, acidic, nickel and rare earth-treated crystalline zeolite.

Abstract: A process for the conversion of olefinic hydrocarbons according to the olefin reaction (e.g., the olefin disproportionation reaction) by contacting the olefinic hydrocarbon with a catalyst comprising a coordination compound of molybdenum or tungsten complexed with NO, together with an organoaluminum adjuvant.

Abstract: Olefins, or mixtures of various olefins, are converted to other olefins by contact with a supported molybdenum oxide or tungsten oxide organoaluminum catalyst.

Abstract: Cycloalkylaromatics are produced from aromatic hydrocarbons in the presence of hydrogen and an aqueous HF-treated ruthenium halide-active clay catalyst which has been promoted with at least one compound of iron, cobalt, and nickel. Preferably the catalyst has not been heated under calcination conditions prior to use. In a specific embodiment, benzene is converted to cyclohexylbenzene with good selectivity over an active clay impregnated with ruthenium chloride and hydrogen fluoride and at least one compound of iron, cobalt, and nickel.

Abstract: Novel compositions and novel hydroformylation catalysts are prepared by the interaction of an organorhodium halide of the formula (L).sub.n Rh(X).sub.m, wherein X is chlorine, bromine or iodine, L is a cyclic diene or a cyclic triene, n equals 1 or 2, m equals 1 or 2, the sum of n + m equals 2 or 3; hydrazine or a hydride of Group IA, IIA or IIIA metals; and a phosphorus containing adjuvant of the formula L'.sub.3 P, wherein each L' individually represents aryl, aryloxy, alkaryl, aralkyl, alkaryloxy, aralkoxy, alkyl or alkoxy radicals. The hydroformylation catalysts promote the conversion of olefins to linear aldehydes.

Abstract: Catalysts active for the olefin reaction, including olefin disproportionation are provided comprising molybdenum or tungsten oxides associated with a suitable support material which has been subjected to treatment at high temperature in combination with organoaluminum compounds. The supported molybdenum or tungsten oxide can optionally be contacted with nitric oxide, nitrosyl halide, and alkali or alkaline earth metal compounds prior to treatment with the organoaluminum compound.