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. 04, 2013
Filed:
Apr. 22, 2009
Applicants:
Roberto Nasser, Sao Paulo, BR;
Dalva Janine Rita, Campinas, BR;
Joël Schwartz, Caluire, FR;
Inventors:
Assignee:
Rhodia Poliamida E Especialidades LTDA, Sao Paulo, BR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 45/61 (2006.01); B01J 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Production of a ketone or aldehyde prepared by condensation is optimized by dehydration and hydrogenation of a starting acetone/ketone or aldehyde in a reaction zone and wherein water is partially eliminated from such reaction product by at least one membrane pervaporation module, the pervaporation module being fed tangentially and situated laterally to the reaction zone and operating in a loop, and wherein a fraction of reaction product exiting the reaction zone is thus partially dehydrated and recycling such dehydrated concentrate to the reaction zone.