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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.

Patent No.:

US 4962251 B1

PDFFull Text
Date of Patent:
Oct. 09, 1990

Filed:

Dec. 28, 1989

Process for production of aromatic hydrocarbons

Applicant:
Inventors:

Takashi Yamamoto, Sodegaura, JP;

Toshikazu Yoneda, Sodegaura, JP;

Hisashi Katsuno, Sodegaura, JP;

Takashi Murakawa, Sodegaura, JP;

Nobuyuki Takahashi, Sodegaura, JP;

Assignee:

Research Association for Utilization of Light Oil, Tokyo, JP;

Attorney:

Frishauf, Holtz, Goodman & Woodward

Primary Examiner:

Curtis R Davis

Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585419 ; 208138 ;
Abstract

A process for producing aromatic hydrocarbons in a high yield by introducing a naphtha fraction the cyclopentane content of which is controlled to not more than 1% by weight, or the methylpentane content is controlled to not more than 10% by weight, in a catalytic reaction tower, and contacting with a catalyst comprising a large pore zeolite containing at least one of Group VII metals of the Periodic Table. In this process, the catalyst cycle is greatly lengthened.

Find Patent Forward Citations

Yamamoto, Takashi. (1990). Process for production of aromatic hydrocarbons (U.S. Patent No. 4962251). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4962251

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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