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:
May. 30, 1978
Filed:
Feb. 07, 1977
John Joseph Leonard, Springfield, PA (US);
Jar-Lin Kao, Cherry Hill, NJ (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
A method for the production of .alpha.,.beta.-unsaturated aliphatic carboxylic acids by the liquid phase oxidation of the corresponding .alpha.,.beta.-unsaturated aliphatic aldehydes, particularly acrolein and methacrolein, and the in situ decomposition of unsaturated intermediate peroxy (peroxide) compounds formed during oxidation, which comprises passing oxygen or an oxygen-containing gas through an inert solvent solution of the aldehyde at a suitable temperature and pressure in the presence of a catalytic amount of an inorganic or organic antimony salt. The solvent employed may also be mixed with water forming a heterogeneous solvent system.