Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation

M.T. Jongmans (Inventor), J.J. Pragt (Inventor), G. Bargeman (Inventor), B. Schuur (Inventor), J.T.J. Aaldering (Inventor), A.B. de Haan (Inventor), M.R. Nieuwhof (Inventor), P. Verwer (Inventor), A.A. Kiss (Inventor), A.J.B. ten Kate (Inventor), C.J.G. van Strien (Inventor)

Research output: Patent

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 hasa BF3 affinity 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.
Original languageEnglish
Patent numberTW101108928A
Priority date15/03/12
Publication statusSubmitted - 27 Dec 2012

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