The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 01, 1991

Filed:

May. 11, 1990
Applicant:
Inventors:

Toshio Tsutsui, Kashiwa, JP;

Osamu Kubota, Sodegaura, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
585488 ; 502182 ; 585486 ;
Abstract

A catalyst for hydrodealkylation of alkylaromatic compounds which comprises porous alumina particles with coke deposited thereon in the pores, said alumina particles having a pore volume of 0.1 to 1.5 cm.sup.3 /g and a specific surface area of 5 to 500 m.sup.2 /g, the quantity of said coke being 1 to 30% by weight of said alumina particles, and the pore volume and the specific surface area of said catalyst being 0.05 to 1.5 cm.sup.3 /g and 1 to 500 m.sup.2 /g, respectively.


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