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:
Mar. 26, 2002
Filed:
Feb. 28, 2000
Applicant:
Inventors:
Elke Schweers, Bad Soden, DE;
Thomas Kaiser, Kelkheim, DE;
Christine Meister, Sulzbach, DE;
Michael Rosenberg, Niedernhausen, DE;
Rolf Schulz, Dinslaken, DE;
Assignee:
Ticona GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 1/000 ; C07C 4/700 ;
U.S. Cl.
CPC ...
C08G 1/000 ; C07C 4/700 ;
Abstract
In a process for preparing formaldehyde from methanol by dehydrogenation in a reactor in the presence of a catalyst at a temperature in the range from 300 to 1000° C., a circulating gas stream comprising by-products of the dehydrogenation is passed through the reactor.