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:
Mar. 23, 1976
Filed:
Feb. 04, 1974
Bayer Aktiengesellschaft, Leverkusen, DT;
Abstract
Hydrocarbons containing from 4 to 20 carbon atoms are oxidized with a gas containing molecular oxygen in the presence of a catalyst and/or auxiliary agents. The resulting reaction mixture is saponified with an aqueous alkaline solution and the resulting alkaline solution containing organic impurities is subjected to liquid phase oxidation with a gas containing molecular oxygen in at least a stoichiometric quantity sufficient for completely burning the organic ingredients, the oxidation taking place in a reaction zone heated to at least 200.degree.C under a pressure sufficient to keep at least some of the water in the liquid phase. The alkali carbonate/bicarbonate solution formed is recycled to the hydrolysis stage.