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. 08, 1991
Filed:
Jul. 03, 1989
Applicant:
Inventor:
Georges Berrebi, Bourg les Valence, FR;
Assignee:
Europeene de Retraitement de Catalyseurs Eurecat, La Voulte sur Rhone, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502 32 ; 208111 ; 2082 / ; 502 31 ; 502 62 ; 502 85 ; 502162 ; 502168 ; 502169 ; 502210 ; 502211 ; 502213 ; 502219 ; 502220 ; 502221 ; 502222 ; 502223 ; 502228 ;
Abstract
Presulfurization of a catalyst used, e.g., for hydrocarbon conversion, wherein a polysulfide is employed as the sulfurization agent. In the first stage of the presulfurization, phosphorous, a halogen, or compounds thereof are introduced.