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:
Jul. 12, 2011
Filed:
Dec. 20, 2006
Alexander V. Peters, Aachen, DE;
Gerardus J. P. Krooshof, Sittard, NL;
Nicolaas M. H. Beckers, Cadier en Keer, NL;
John Krijgsman, Maastricht, NL;
Alexander V. Peters, Aachen, DE;
Gerardus J. P. Krooshof, Sittard, NL;
Nicolaas M. H. Beckers, Cadier en Keer, NL;
John Krijgsman, Maastricht, NL;
DSM IP Assets B.V., Heerlen, NL;
Abstract
The invention relates to a process for the isolation of an organic amine from a composition comprising the organic amine and an acid, or a salt of the organic amine and the acid, wherein the process comprises steps wherein ammonia or hydrazine is added to the composition thereby forming a multi-phase system comprising an organic amine-rich phase and an acid-rich phase, the organic amine-rich phase and the acid-rich phase obtained in step (i) are separated, and the organic amine is isolated from the organic amine-rich phase.