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. 01, 2002
Filed:
Apr. 27, 1998
Applicant:
Inventors:
Giorgio Pagani, Lugano, CH;
Federico Zardi, Breganzona, CH;
Assignee:
Urea Casale S.A., Lugano-Besso, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 8/04 ; B01J 1/000 ;
U.S. Cl.
CPC ...
B01J 8/04 ; B01J 1/000 ;
Abstract
A hydrolysis reactor for removal of urea, ammonia and carbon dioxide from a liquid phase comprising urea in aqueous solution advantageously comprises a dividing baffle extending horizontally at a preset height in the reactor in which it defines a first and a second respectively lower and upper reaction space, means of collection and extraction from the reactor of a first portion of a gaseous phase comprising high pressure and temperature steam, previously fed into the first reaction space and means for feeding a second portion of the gaseous phase comprising high pressure and temperature steam to the second reaction space.