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:
Sep. 27, 1988
Filed:
Jun. 09, 1987
James R Butler, Big Spring, TX (US);
Kevin P Menard, Big Spring, TX (US);
J Randall Curtis, Big Spring, TX (US);
Cosden Technology, Inc., Dallas, TX (US);
Abstract
A process for the alkylation of aromatic compounds employing silicalite of extremely low sodium content. A feedstock containing an aromatic substrate such as benzene is supplied along with an alkylating agent such as ethylene to a reaction zone containing a silicalite alkylation catalyst having a sodium content of less than 100 ppm Na.sub.2 O. Steam may be cofed to the reaction zone in an amount of at least 1 wt. % based upon the aromatic substrate. The low sodium silicalite has a substantially better aging quality in the alkylation process than does silicalite which normally has a higher sodium content.