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:
Oct. 20, 1987
Filed:
Oct. 01, 1986
Applicant:
Inventors:
Loren L Swearingen, Irving, TX (US);
Randy J LaTulip, Lake Jackson, TX (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546251 ; 546250 ; 546349 ;
Abstract
Process for the production of 2,4,6-trimethyl pyridine wherein a carbonyl compound such as acetone is reacted with ammonia in the presence of a condensation catalyst at a temperature in the range from 100.degree. to 200.degree. C. to produce a mixture of products containing 2,2,4,6-tetramethyl-1,2-dihydropyridine which is then purified. The substantially pure dihydropyridine is then contacted with a cracking catalyst at a temperature in the range from 250.degree. to 450.degree. C. to produce 2,4,6-trimethyl pyridine in high yield.