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:
Nov. 29, 1988
Filed:
May. 27, 1987
Applicant:
Inventor:
Michel Desbois, Rillieux La Pape, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie Cedex, FR;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
568706 ;
Abstract
A process for the preparation of para-nitrophenol by bringing a phenyl ester of an inorganic acid into contact with a nitrating agent in the presence of liquid hydrofluoric acid and a hydrolysis of the nitrated product obtained is carried out either simultaneously or in sequence with the nitration.