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:
Aug. 12, 2008
Filed:
Sep. 20, 2006
Raghunath Vitthal Chaudhari, Maharashtra, IN;
Kalpendra Baburao Rajurkar, Maharashtra, IN;
Sunil Sopana Tonde, Maharashtra, IN;
Vilas Hari Rane, Maharashtra, IN;
Raghunath Vitthal Chaudhari, Maharashtra, IN;
Kalpendra Baburao Rajurkar, Maharashtra, IN;
Sunil Sopana Tonde, Maharashtra, IN;
Vilas Hari Rane, Maharashtra, IN;
Council of Scientific & Industrial Research, New Dehli, IN;
Abstract
The present invention provides a liquid phase oxidation of toluene by using catalyst containing manganese (Manganese II acetate) in presence of Lewis acid (Stannous (II) chloride) and a bromide promoter (NaBr), at a temperature of 120° C. and at a pressure of air in the range of 70-400 psig, in presence of carboxylic acid (acetic acid), as a solvent, to obtain high selectivity to benzaldehyde (76%). High activity was obtained with minimum byproducts such as benzoic acid, benzyl alcohol and benzyl acetate.