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. 11, 1990
Filed:
Mar. 29, 1989
Applicant:
Inventors:
Georges Berrebi, Bourg Les Valence, FR;
Pierre Dufresne, Rueil Malmaison, FR;
Assignee:
Europeenne de Retraitement de Catalyseurs, La Voulte sur Rhone, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; C10G / ;
U.S. Cl.
CPC ...
502 26 ; 2082 / ; 502 31 ; 502 54 ; 502164 ; 502167 ; 502168 ; 502200 ; 502219 ; 502220 ; 502222 ;
Abstract
The invention involves a process comprising regenerating a catalyst comprising (a) a support containing at least one oxide of a metal or metalloid and (b) at least one active metal, said process comprising in a first stage treating said catalyst in the absence of hydrogen with at least one sulfurizing agent comprising a polysulfide of the formula
Berrebi, Georges. (1990). Process of presulfurizing and controlling the activity of catalyst for (U.S. Patent No. 4977117). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4977117
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile