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:
Jul. 13, 2004
Filed:
Nov. 13, 2001
Applicant:
Inventors:
Nabil Rizkalla, Rivervale, NJ (US);
Serguei Pak, Maywood, NJ (US);
Andrew D. Schmitz, Rutherford, NJ (US);
Assignee:
Scientific Design Co., Ltd., Little Ferry, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; B01J 2/702 ; B01J 2/706 ; B01J 2/348 ;
U.S. Cl.
CPC ...
C07D / ; B01J 2/702 ; B01J 2/706 ; B01J 2/348 ;
Abstract
A silver catalyst for ethylene oxidation to ethylene oxide is provided containing a promoter combination consisting of critical amounts of an alkali metal component and a sulfur component, the catalyst being essentially free of rhenium and transition metal components; optionally the catalyst contains a fluorine component.