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:
Jan. 11, 1994
Filed:
Oct. 30, 1992
Applicant:
Inventors:
Yves Correia, Chateau-Arnoux, FR;
Michel Bertucci, Lyons, FR;
Assignee:
Atochem, Puteaux, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502185 ;
Abstract
The alpha-halogenated carboxylic acids/esters are dehalogenated by reaction with hydrogen in the presence of a catalytically effective amount of (i) a Group VIII precious metal catalyst and (ii) either sulfur or a sulfur compound, or (iii) a novel precious metal/sulfur solid phase catalyst; the subject dehalogenation is especially adapted for enriching the monochloroacetic acid content of MCAA/DCAA mixtures.