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. 12, 1982
Filed:
Jun. 24, 1980
Applicant:
Inventors:
Erwin Vangermain, Marl, DE;
Claus-Dieter Mengler, Marl, DE;
Rainer Elm, Marl, DE;
Horst Ueberschaer, Marl, DE;
Wilhelm Brauckmann, Marl, DE;
Assignee:
Chemische Werke Huls AG, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
2524 / ; 252475 ; 252476 ;
Abstract
The activity and the service life of supported silver catalysts used in the preparation of ethylene oxide by the catalytic vapor phase oxidation of ethylene with molecular oxygen are extended by using mixtures of: