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:
Jun. 10, 1980
Filed:
Apr. 08, 1976
Applicant:
Inventor:
Peter A Kilty, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
252463 ; 252476 ; 26034834 ;
Abstract
When supported silver materials are being prepared, deposits of ionic, higher alkali metals, i.e., ionic potassium, rubidium, cesium or combinations thereof on porous supports with surface areas ranging from 0.1 to 7 square meters per gram prior to the deposit of silver improves the selectivity of these materials as catalysts for ethylene oxide. Optimal concentrations of the ionic, higher alkali metals are directly proportional to the surface area of the support.