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. 13, 2015
Filed:
Apr. 15, 2011
Applicants:
Tommaso Crippa, Missaglia, IT;
Stefano Alini, Cava Manara, IT;
Luciano Guida, Mortara, IT;
Alberto Corona, Vercelli, IT;
Inventors:
Tommaso Crippa, Missaglia, IT;
Stefano Alini, Cava Manara, IT;
Luciano Guida, Mortara, IT;
Alberto Corona, Vercelli, IT;
Assignee:
Radici Chimica S.p.A., Bergamo, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C 209/48 (2006.01); B01J 8/22 (2006.01); B01J 19/00 (2006.01); B01J 38/72 (2006.01); B01J 25/02 (2006.01); B01J 25/04 (2006.01); B01J 38/48 (2006.01);
U.S. Cl.
CPC ...
C07C 209/48 (2013.01); B01J 8/226 (2013.01); B01J 8/228 (2013.01); B01J 19/0053 (2013.01); B01J 38/72 (2013.01); B01J 25/02 (2013.01); B01J 25/04 (2013.01); B01J 2219/00006 (2013.01); B01J 38/48 (2013.01);
Abstract
It is described a process for the production of hexamethylenediamine by hydrogenation of adiponitrile, comprising an improved step of regeneration of the catalyst. Also described are an equipment for the production of hexamethylenediamine, and a washing apparatus () for implementing the catalyst regeneration step.