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:
Dec. 10, 2013
Filed:
Nov. 07, 2008
Applicants:
Francois Figueras, Lyons, FR;
Abhay Deshpande, Lyons, FR;
Inventors:
Francois Figueras, Lyons, FR;
Abhay Deshpande, Lyons, FR;
Assignees:
Centre National de la Recherche Scientifique (C.N.R.S.), Paris, FR;
Council of Scientific & Industrial Research, New Delhi, IN;
Vinati Organics Ltd (V.O.L.), Maharashtra, IN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 213/02 (2006.01); C07C 209/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
The method of using a bi-functional catalyst for the one-step preparation of para-aminophenol. The catalyst includes a mixture of a hydrogenation noble metal and a zirconium sulfate. Also, an improved single-step process for the preparation of para-aminophenol from nitrobenzene, in an aqueous medium, using the bi-functional catalyst.