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US 4,177,165 AGranted
Hydroalkylation composition and process for producing said composition
AssigneePhillips Petroleum Company
InventorsTimothy P. Murtha, Ernest A. Zuech
Life of this patent
Estimating the term…
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.
Claims21
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;
- wherein the rare earth content of the calcined, acidic, nickel and rare earth-treated crystalline zeolite ranges from about 2 to about 25 percent by weight;
- and
- wherein the nickel content of the calcined, acidic, nickel and rare earth-treated crystalline zeolite ranges from about 0.01 to about 12 percent by weight.
1 more element
A method for the preparation of a composition comprising:
- contacting a crystalline zeolite with an aqueous cation exchange solution comprising rare earth, nickel, and ammonium compounds to produce a zeolite having from about 2 to about 25 weight percent rare earth content and from about 0.01 to about 12 weight percent nickel content,
- removing the cation exchanged zeolite from said solution and washing said zeolite with water to remove excess ions;
- calcining said cation exchanged zeolite;
- cooling said calcined zeolite;
- impregnating said cation exchanged zeolite with a solution comprising at least one rhodium or palladium compound or mixture thereof in a suitable solvent;
- and
- removing said solvent by evaporation,
- wherein said cation exchanged zeolite is calcined and then cooled either before or after said rhodium or palladium compound or a mixture thereof is impregnated on said zeolite.
5 more elements
Dependencies are inferred from the claim text.