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:
Dec. 13, 1976
Filed:
Apr. 23, 1975
Applicant:
Inventor:
Abraham H de Rooij, Geleen, NL;
Assignee:
Stamicarbon B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
An improved cyclic process for producing cyclohexanone oxime is provided wherein the circulating reaction medium is subjected to a heat treatment, at a temperature of at least 120.degree. C in the presence of nitrous gases, and at an absolute pressure of over 1 atmosphere, as it circulates between the oxime synthesis zone and the hydroxylamines synthesis zone. Cyclohexanone oxime is a valuable commercial commodity e.g. for the preparation of nylon-6 via .epsilon.-caprolactam.