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:
Oct. 16, 1990
Filed:
Jun. 30, 1988
Applicant:
Inventors:
Umberto Zardi, Breganzona, IT;
Giorgio Pagani, Lugano, IT;
Assignees:
Ammonia Casale, S.A., Lugano, CH;
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01C / ; C07C / ;
U.S. Cl.
CPC ...
423360 ; 422148 ; 422192 ; 422194 ; 423361 ; 423659 ; 518712 ;
Abstract
Improved process for heterogeneous synthesis and related reactors according to which the synthesis catalyst is distributed in three catalytic beds either axial-radial or radial, control of the temperature between beds being effected by means of fresh quench gas between the first and the second bed and by means of indirect cooling with an exchanger between the second and the third bed of the gas leaving the second bed, using fresh gas which is heated inside the tubes of said exchanger.