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. 09, 2002
Filed:
Jul. 31, 2000
Applicant:
Inventors:
Horst Ertl, Neuoetting, DE;
Peter Schwarzmaier, Kastl, DE;
Ingolf Mielke, Burgkirchen, DE;
Peter Kammerhofer, Burgkirchen, DE;
Assignee:
Vinnolit Monomer GmbH & Co. KG, Ismaning, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/715 ;
U.S. Cl.
CPC ...
C07C 1/715 ;
Abstract
The present invention is directed to a process for preparing 1,2-dichloroethane by reacting ethene with hydrogen chloride and oxygen over a copper-containing fluidized-bed catalyst. The discharge of the catalyst from the reactor per se is avoided if the catalyst is virtually completely retained in the upper part of the reactor by means of superfine filtration.