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.:
Date of Patent:
Jul. 25, 2000
Filed:
Jun. 23, 1997
Qingxia Wang, Liaoning, CN;
Shurong Zhang, Liaoning, CN;
Guangyu Cai, Liaoning, CN;
Feng Li, Liaoning, CN;
Longya Xu, Liaoning, CN;
Zuxian Huang, Liaonig, CN;
Yuying Li, Liaoning, CN;
China Petro-Chemical Corporation, Beijing, CN;
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Liaoning, CN;
Fushun Petrochemical Company of Sinopec, Fushun, CN;
Abstract
An alkylation catalyst comprises from 50 to 70 wt % of hydrogen type ZSM-SM-11 co-crystaline zeolite containing rare earth element and the rest amount of porous inorganic oxide matrix material. The zeolite has particular chemical composition and X-ray diffraction lines. This catalyst has higher activity, selectivity and stability in alkylation process than that of the prior art. With this catalyst the process for preparing ethyl benzene by alkylation of benzene with ethylene has higher ethylene conversion and ethyl benzene selectivity.