Akzo Nobel N.v.

Akzo Nobel Chemicals International B.v.

Veolia Water Solutions & Technologies Support

Otv Sa

Nouryon Chemicals International B.v.

Cornelis Johannes Govardus Van Strien

André Banier De Haan

Gerrald Bargeman

Melle Rinze Nieuwhof

Boelo Schuur

Jacobus Theodorus Josef Aaldering

Anton Alexandru Kiss

Mark Theodorus Gerardus Jongmans

Antoon Jacob Berend Ten Kate

Elwin Schomaker

Boris Kuzmanovic

Michael Zeitler

Johanna Christina Speelman

Paul Verwer

Alex Londoño Rodriguez

Dirk Thomas Meijer

Colin Eric Bartel

Johannes Jozef Pragt

Jeroen Crouzen

Johannes Joseph Gorissen

Johannes Josef Pragt

Franz Winfried Welter

Alex LONDOÑO Rodriguez

Lamberdine Johanna Willemina M Nabuurs-Willems

The present invention pertains to a process for separating monochloroacetic acid and dichloroacetic acid from one another via extractive distillation using (a) an extractive agent that is chemically stable and has a BFaffinity of between 65 kJ/mole and 110 kJ/mole and (b) an organic solvent that is either an acid with a lowest pKa of between 3.0 and 6.5 or a base with a BFaffinity of between 40 kJ/mole and 75 kJ/mole with the proviso that said BFaffinity is lower than the BFaffinity of the extractive agent, said organic solvent being chemically stable, and having a boiling point at atmospheric pressure of at least 468K, comprising the steps of (i) contacting a mixture comprising monochloroacetic acid and dichloroacetic acid with the extractive agent, (ii) distilling the mixture obtained in step (i) to obtain a monochloroacetic acid stream and a stream comprising dichloroacetic acid and the extractive agent, (iii) subjecting the stream comprising dichloroacetic acid and the extractive agent to a regeneration step, wherein the organic solvent is contacted with the mixture comprising monochloroacetic acid and dichloroacetic acid of step (i), or wherein the organic solvent is contacted with the mixture obtained in step (i) prior to and/or during step (ii), or wherein the organic solvent is contacted with the stream comprising dichloroacetic acid and the extractive agent obtained in step (ii) prior to or during step (iii), or any combination thereof.

Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation using an organic solvent

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.

Process for separating monochloroacetic acid and dichloroacetic acid via extractive distillation

A method for removing liquid, gaseous and/or dissolved constituents from an aqueous stream includes contacting the aqueous stream with a porous material and then contacting the aqueous stream with an adsorbent material. The porous material includes pores having an average diameter of approximately 0.01 &#x3bc;m to approximately 50 &#x3bc;m and an extraction liquid immobilized within at least a portion of the pores.

Use of an adsorbent for the removal of liquid, gaseous and/or dissolved constituents from a process stream

The present invention relates to a method to electroplate or electropolish a metal on a substrate wherein an ionic liquid is selected from the group of NRRRRXor NRRRRYis employed as electrolyte, and a metal salt added to the ionic liquid is employed as the metal source or a metal anode is used as the metal source, wherein any one of Rto Rindependently represents a hydrogen, alkyl, cycloalkyl, aryl, or aralkyl group that may be substituted with a group selected from OH, Cl, Br, F, I, phenyl, NH, CN, NO, COOR, CHO, COR, or OR, at least one of Rto Ris a fatty alkyl chain, and one or more of Rto Rcan be a (poly)oxyalkylene group wherein the alkylene is a Cto Calkylene and the total number of oxyalkylene units can be from 1 to 50 oxyalkylene units, and at least one of Rto Ris a Cto Calkyl chain, Ris an alkyl or cycloalkyl group, X&#x2212; is an anion having an N-acyl sulphonylimide anion (&#x2014;CO&#x2014;N&#x2014;SO&#x2014;) functionality, Yis an anion compatible with the NRRRRammonium cation, such as a halogenide anion, a carboxylate anion, a sulphate (both organic and inorganic sulphate), sulphonate, carbonate, nitrate, nitrite, thiocyanate, hydroxide, or sulphonylimide anion.

Method to electrodeposit metals using ionic liquids

A process for the removal of liquid, gaseous and/or dissolved constituents from a process stream. The process stream is contacted with an adsorbent comprising a first porous material which has been incorporated into a second porous material at least 30 vol. % of the pores of the first and second porous materials of which are filled with an extraction liquid. The affinity between the adsorbent and the constituents to be removed exceeds the affinity between the constituents and the extraction liquid.

The invention pertains to a process for the production of monochloroacetic acid from chlorine and acetic acid in the presence of a catalyst by reactive distillation. The process and the required reactive distillation apparatus is much less complex than conventional reactors and yields a monochloroacetic acid product having a low content of over-chlorinated products.

Process for the preparation of monochloroacetic acid

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Elst, Netherlands

Cornelis Johannes Govardus Van Strien