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. 07, 2015
Filed:
Mar. 13, 2012
Mark Theodorus Gerardus Jongmans, Deventer, NL;
Johannes Josef Pragt, Dieren, NL;
Gerrald Bargeman, Wageningen, NL;
Boelo Schuur, Eindhoven, NL;
Jacobus Theodorus Josef Aaldering, Doesburg, NL;
André Banier DE Haan, Eindhoven, NL;
Melle Rinze Nieuwhof, Dieren, NL;
Paul Verwer, Nijmegen, NL;
Anton Alexandru Kiss, Arnhem, NL;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Cornelis Johannes Govardus Van Strien, Elst, NL;
Mark Theodorus Gerardus Jongmans, Deventer, NL;
Johannes Josef Pragt, Dieren, NL;
Gerrald Bargeman, Wageningen, NL;
Boelo Schuur, Eindhoven, NL;
Jacobus Theodorus Josef Aaldering, Doesburg, NL;
André Banier De Haan, Eindhoven, NL;
Melle Rinze Nieuwhof, Dieren, NL;
Paul Verwer, Nijmegen, NL;
Anton Alexandru Kiss, Arnhem, NL;
Antoon Jacob Berend Ten Kate, Arnhem, NL;
Cornelis Johannes Govardus Van Strien, Elst, NL;
AKZO NOBEL CHEMICALS INTERNATIONAL B.V., Amersfoort, NL;
Abstract
The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with an extractive agent which is chemically stable and which has a BFaffinity of between 65 kJ/mole and 110 kJ/mole, (ii) distilling the mixture to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, and (iii) regenerating the extractive agent.