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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.:

US 4141896 B1

PDFFull Text
Date of Patent:
Feb. 27, 1979

Filed:

Sep. 09, 1977

Process for the producing .epsilon.-caprolactam from the distillation of

Applicant:
Inventors:

Otto Immel, Krefeld, DE;

Andre DE Jager, Brasschaat, BE;

Bernd-Ulrich Kaiser, Krefeld, DE;

Hans-Helmut Schwarz, Krefeld, DE;

Klaus Starke, Krefeld, DE;

Assignee:

Bayer Aktiengesellschaft, , DE;

Attorney:

Connolly and Hutz

Primary Examiner:

Natalie Trousof

Assistant Examiner:

Robert T Bond

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ;
Abstract

A process for the production of .epsilon.-caprolactum from cyclohexanone oxime by rearrangement in the gaseous phase on a fluid-bed catalyst containing boron oxide, wherein residues from the distillation of cyclohexanone oxime are introduced into the reaction in liquid form, and wherein from 5 to 500 times their quantity of cyclohexanone oxime in vapor form and at least 50 times their quantity of inert gas are present during the reaction.

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Immel, Otto. (1979). Process for the producing .epsilon.-caprolactam from the distillation of (U.S. Patent No. 4141896). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4141896

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