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:
Jun. 14, 1988
Filed:
May. 21, 1987
Applicant:
Inventors:
M M de Agudelo, Los Teques, VE;
Jose M Larrauri Derteano, San Antonio de Los Altos, VE;
Julio Krasuk, Los Teques, VE;
Assignee:
Intevep, S.A., Caracas, VE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; C10G / ; C10G / ;
U.S. Cl.
CPC ...
502 51 ; 208112 ; 208124 ; 502 38 ; 502 41 ;
Abstract
A process for regenerating a spent, naturally occurring catalyst characterized by an iron content of about 10 to 70 wt. % as metal comprises contacting the spent catalyst with a mixture of water vapor and air in a water vapor/air ratio of between 1:1 to 20:1 at a flow rate of about 0.1 to 50 l/min., a temperature of about 200.degree. to 700.degree. C., a pressure of about 0.3 to 80 atmospheres for a time of about 0.1 to 20 hours so as to obtain a regenerated catalyst having a crystallinity value of about 1.0 to 6.5.