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:
Aug. 05, 2008
Filed:
Jan. 09, 2004
Andreas Johannes Biermans, Urmond, NL;
Kees Jonckers, Roosteren, NL;
Johannes Henricus Mennen, Meijel, NL;
Nora Anna DE Wit, Voerendaal, NL;
Herbert Willem Gerrit Hooijkaas, Urmond, NL;
Bastiaan Renè Agnes Marie Van DE Kerkhove, Eindhoven, NL;
Andreas Johannes Biermans, Urmond, NL;
Kees Jonckers, Roosteren, NL;
Johannes Henricus Mennen, Meijel, NL;
Nora Anna De Wit, Voerendaal, NL;
Herbert Willem Gerrit Hooijkaas, Urmond, NL;
Bastiaan Renè Agnes Marie Van De Kerkhove, Eindhoven, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
The invention relates to a process for separating NHfrom a mixture containing NH, COand HO which comprises an NHrectification step carried out in a NHseparation device to which one or more streams containing NH, COand HO including the mixture, are supplied, with a stream consisting substantially of gaseous NHbeing formed in the NHseparation device, separated from the mixture and discharged. In the process according to the invention a condensation step is carried out on at least one of the stream consisting substantially of gaseous NHor the one or more streams containing NH, COand HO supplied to the NHseparation device, in which at least a part of the existing COis converted to a liquid phase.