# US 8,772,529 B2 · Catalyst for alkylation and process for producing alkylaromatic hydrocarbon compound using the catalyst

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- Number: US 8,772,529 B2
- Document ID: US8772529B2
- Status: Granted
- Kind: B2
- Application number: 13/642,327
- Filed: 2011-06-03
- Published: 2013-02-14
- Granted: 2014-07-08
- Earliest claimed: 2010-06-10
- Assignees: Ube Industries, Ltd.
- Applicants: Yasushi Yamamoto; Hikaru Yatabe
- Inventors: Yasushi Yamamoto; Hikaru Yatabe
- Web page: https://patentgrep.com/patent/US8772529B2

## CPC

- B01J 29/088: {Y-type faujasite}
- B01J 29/061: {containing metallic elements added to the zeolite}
- B01J 29/084: {Y-type faujasite}
- B01J 29/7049: {containing rare earth elements, titanium, zirconium, hafnium, zinc, cadmium, mercury, gallium, indium, thallium, tin or lead}
- B01J 29/90: Regeneration or reactivation
- C07C 2/66: Catalytic processes
- C07C 67/347: by addition to unsaturated carbon-to-carbon bonds
- C07C 69/753: of polycyclic acids
- B01J 2229/186: not in framework positions
- C07C 2529/08: of the faujasite type, e.g. type X or Y
- C07C 2601/14: The ring being saturated
- Y02P 20/584: Recycling of catalysts
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A catalyst for alkylation contains an inorganic structural material having an ion-exchange ability and a metal ion having a valency of 2 or more. The metal ion is supported on the inorganic structural material. The inorganic structural material is preferably a zeolite. The metal ion is preferably a lanthanide metal. The catalyst for alkylation imparts industrially satisfiable activity and selectivity and can be readily separated, collected and recycled. Furthermore, the process for producing an alkylaromatic hydrocarbon compound includes reacting an aromatic hydrocarbon compound and a compound having an unsaturated bond in the presence of the catalyst for alkylation.

## Claims

### Claim 1

A process for producing an alkylaromatic hydrocarbon compound, comprising reacting an aromatic hydrocarbon compound represented by general formula (1),
wherein R is a substituent, and m is an integer of 0 to 4, and a cyclohexenedicarboxylic acid ester in the presence of a catalyst for alkylation, wherein the catalyst for alkylation comprises an inorganic structural material having an ion-exchange ability and a metal ion having a valency of 2 or more, the metal ion being supported on the inorganic structural material, wherein the inorganic structural material having an ion-exchanging ability is a zeolite comprising silicon and aluminum as main components, and the metal ion is a lanthanide metal or yttrium.

### Claim 2 (depends on 1)

The process for producing an alkylaromatic hydrocarbon compound according to claim 1, wherein the catalyst for alkylation is separated, collected and recycled after completion of the reaction.

### Claim 3

A 3,4-dialkoxycarbonylcyclohexyl-3′,4′-dimethylbenzene represented by formula (3) below:
wherein R2 and R3 may be the same or different and each represents an alkyl group having 1 to 5 carbon atoms.