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:
Jan. 09, 1996
Filed:
Jul. 05, 1994
Maureen L Bricker, Buffalo Grove, IL (US);
Thomas K McBride, Jr, Arlington Heights, IL (US);
Karl Z Steigleder, Glen Ellyn, IL (US);
UOP, Des Plaines, IL (US);
Abstract
A process for preparing catalysts has been developed. The process involves the use of a chelating ligand such as ethylenediaminetetraacetic acid. The aqueous solution of the chelating ligand and a promoter metal salt is first prepared heated to a temperature of about 80.degree. C. to about its boiling point and then combined with an aqueous solution containing a Group VIII metal compound. Next this mixed solution is aged at a temperature of about 40.degree. C. to about 100.degree. C. and then used to impregnate a support, e.g., alumina spheres. The impregnated support is then dried, calcined and reduced with hydrogen. Prior to reduction the catalyst may optionally be treated with a chlorine or chloride stream.