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:
Jun. 06, 1978
Filed:
Feb. 07, 1977
Jar-lin Kao, Cherry Hill, NJ (US);
John Joseph Leonard, Springfield, PA (US);
Atlantic Richfield Company, Los Angeles, CA (US);
Abstract
A process for the preparation of .alpha.,.beta.-unsaturated aliphatic carboxylic acids by the liquid phase oxidation of the corresponding .alpha.,.beta.-unsaturated aliphatic aldehyde, such as acrolein and methacrolein, and the in situ decomposition or conversion of unsaturated peroxy (peroxide) compounds formed during oxidation, which comprises passing air or oxygen through an inert organic solvent solution of the aldehyde at a suitable temperature and pressure in the presence of a catalytic amount of an organic or inorganic bismuth salt. Heterogeneous solvent systems employing mixtures of the organic solvent and water may be used.