logo

For the Inventor, By the Inventor

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 5302732 B1

PDFFull Text
Date of Patent:
Apr. 12, 1994

Filed:

Sep. 14, 1992

Use of ultra-low sodium silica-aluminas in the alkylation of aromatics

Applicant:
Inventors:

Karl Z Steigleder, Glen Ellyn, IL (US);

Christine M Conway, Rogers Park, IL (US);

David M Baldwin, Bolingbrook, IL (US);

Diane C Dierking, Orland Park, IL (US);

Assignee:

UOP, Des Plaines, IL (US);

Attorneys:

McBride; Thomas K.

Snyder; Eugene I.

Primary Examiner:

Patrick P Garvin

Assistant Examiner:

E D Irzinski

Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
554 98 ; 554 89 ; 554 97 ; 252553 ; 252556 ; 252558 ; 562 79 ; 562 82 ; 562 88 ; 562 91 ; 562 94 ; 562 95 ; 562 99 ; 568631 ; 568632 ; 568658 ; 568731 ; 568732 ; 568734 ; 568736 ; 568766 ; 568780 ; 568781 ; 568785 ; 568790 ; 585455 ; 585456 ;
Abstract

Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are used as the catalyst in detergent alkylation their increased stability permits continuous alkylation to be performed at lower temperatures, as a result of which the detergent alkylate product shows an incrementally higher linearity. Fluorided silica-aluminas having a sodium content of under 0.05 weight percent are particularly advantageous.

Find Patent Forward Citations

Steigleder, Karl. (1994). Use of ultra-low sodium silica-aluminas in the alkylation of aromatics (U.S. Patent No. 5302732). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5302732

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

Loading…