Hydroalkylation of benzene and analogs

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – Hydrocarbon is aromatic

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208 89, 208144, 252455Z, 585 25, 585268, 585323, 585427, C07C 510, C07C 1512, C10G 2302

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042196876

ABSTRACT:
Mononuclear aromatic hydrocarbons, e.g. benzene and analogs, are converted by hydroalkylation to the corresponding cycloalkyl aromatics by contacting the mononuclear aromatic hydrocarbons in the presence of hydrogen with a catalyst comprising a rare earth-exchanged Y-type zeolite support carrying a promoter comprising at least one of ruthenium, iridium, rhodium and palladium, the catalyst being calcined in an oxygen-containing atmosphere at a temperature of 250.degree. to 600.degree. C. prior to the hydroalkylation reaction.

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