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:
Dec. 15, 1981
Filed:
Mar. 31, 1980
Applicant:
Inventors:
Erwin Vangermain, Marl, DE;
Willi Brauckmann, Marl, DE;
Hans-Jurgen Erberich, Marl, DE;
Horst Ueberschaer, Marl, DE;
Assignee:
Chemische Werke Huls AG, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
252443 ; 2524 / ; 252463 ; 252475 ; 252476 ;
Abstract
A process for preparing silver catalysts containing alkaline earth metals and alkali metals as promoters for the production of ethylene oxide by oxidizing ethylene with oxygen or oxygen-containing gases. The silver catalysts are prepared by: