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:
Apr. 04, 1978
Filed:
Sep. 23, 1976
Applicant:
Inventor:
Delmar W Robinson, Arlington Heights, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
2524 / ; 252472 ; 208138 ;
Abstract
A method of catalyst manufacture. A calcined tin-containing refractory inorganic oxide support or carrier material is impregnated with an acidic solution of a precursor compound of a platinum group metal and a precursor compound of an iron group metal. The impregnated carrier material is dried over an extended period to reduce the volatile content thereof to less than about 15 wt. % prior to high temperature calcination. Drying the impregnated carrier material in accordance with the present invention provides a catalyst substantially improved in activity stability.