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:
Feb. 04, 1997
Filed:
Mar. 14, 1995
Applicant:
Inventors:
Dennis Hearn, Pasadena, TX (US);
Speros P Nemphos, Pasadena, TX (US);
Assignee:
Chemical Research & Licensing Company, Pasadena, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564450 ;
Abstract
A process for the hydrogenation of aniline to produce cyclohexyl amine is disclosed wherein the reaction is carried out in a distillation column reactor at a hydrogen partial pressure in the range of 0.1 psia to less than 100 psia. The catalyst is prepared in the form of a catalytic distillation structure. Within the distillation reaction zone there is an internal reflux and liquid from an external reflux which cool the rising vaporous aniline condensing a portion within the bed.