Process for manufacturing acrylic acid

B.J.V. Verkuijl (Inventor), Jan van Krieken (Inventor), F.G. Terrade (Inventor), Elisabeth Bouwman (Inventor), Gijsbert Gerritsen (Inventor), Jos Wilting (Inventor)

Research output: PatentPatent publication

4 Downloads (Pure)

Abstract

The invention pertains to a process for preparing acrylic acid and/or the ester of acrylic acid and lactic acid from a lactic acid oligomer or polymer, comprising the steps of - bringing a reaction mixture comprising the lactic acid oligomer or polymer to reaction conditions to form acrylic acid and/or the ester of acrylic acid and lactic acid, the reacting mixture comprising a halide source selected from a bromide source and/or a chloride source and optionally an acid selected from the group of acids with a pKa of at most 2.0 and compounds which under reaction conditions decompose under the formation of an acid with a pKa of at most 2.0, with the reaction mixture comprising less than 1 wt. % of water, and - keeping the reaction mixture under reaction conditions for a time sufficient to produce acrylic acid and/or the ester of acrylic acid and lactic acid. It has been found that the use of a bromide source and/or a chloride source in combination with the specified acid results in a process which can be operated to obtain a high yield, and is relatively easy to perform.

Original languageEnglish
Patent numberWO2017108890
IPCC07C 51/ 09 A I
Priority date21/12/15
Publication statusPublished - 29 Jun 2017

Fingerprint

Lactic Acid
Esters
Acids
Bromides
Oligomers
Chlorides
Polymers
Patents and inventions
acrylic acid
Water

Cite this

Verkuijl, B. J. V., van Krieken, J., Terrade, F. G., Bouwman, E., Gerritsen, G., & Wilting, J. (2017). IPC No. C07C 51/ 09 A I. Process for manufacturing acrylic acid. (Patent No. WO2017108890).
Verkuijl, B.J.V. (Inventor) ; van Krieken, Jan (Inventor) ; Terrade, F.G. (Inventor) ; Bouwman, Elisabeth (Inventor) ; Gerritsen, Gijsbert (Inventor) ; Wilting, Jos (Inventor). / Process for manufacturing acrylic acid. IPC No.: C07C 51/ 09 A I. Patent No.: WO2017108890.
@misc{3a1145b6286540ceb613258401f6306d,
title = "Process for manufacturing acrylic acid",
abstract = "The invention pertains to a process for preparing acrylic acid and/or the ester of acrylic acid and lactic acid from a lactic acid oligomer or polymer, comprising the steps of - bringing a reaction mixture comprising the lactic acid oligomer or polymer to reaction conditions to form acrylic acid and/or the ester of acrylic acid and lactic acid, the reacting mixture comprising a halide source selected from a bromide source and/or a chloride source and optionally an acid selected from the group of acids with a pKa of at most 2.0 and compounds which under reaction conditions decompose under the formation of an acid with a pKa of at most 2.0, with the reaction mixture comprising less than 1 wt. {\%} of water, and - keeping the reaction mixture under reaction conditions for a time sufficient to produce acrylic acid and/or the ester of acrylic acid and lactic acid. It has been found that the use of a bromide source and/or a chloride source in combination with the specified acid results in a process which can be operated to obtain a high yield, and is relatively easy to perform.",
author = "B.J.V. Verkuijl and {van Krieken}, Jan and F.G. Terrade and Elisabeth Bouwman and Gijsbert Gerritsen and Jos Wilting",
year = "2017",
month = "6",
day = "29",
language = "English",
type = "Patent",
note = "WO2017108890; C07C 51/ 09 A I",

}

Verkuijl, BJV, van Krieken, J, Terrade, FG, Bouwman, E, Gerritsen, G & Wilting, J 2017, Process for manufacturing acrylic acid, Patent No. WO2017108890, IPC No. C07C 51/ 09 A I.

Process for manufacturing acrylic acid. / Verkuijl, B.J.V. (Inventor); van Krieken, Jan (Inventor); Terrade, F.G. (Inventor); Bouwman, Elisabeth (Inventor); Gerritsen, Gijsbert (Inventor); Wilting, Jos (Inventor).

IPC No.: C07C 51/ 09 A I. Patent No.: WO2017108890.

Research output: PatentPatent publication

TY - PAT

T1 - Process for manufacturing acrylic acid

AU - Verkuijl, B.J.V.

AU - van Krieken, Jan

AU - Terrade, F.G.

AU - Bouwman, Elisabeth

AU - Gerritsen, Gijsbert

AU - Wilting, Jos

PY - 2017/6/29

Y1 - 2017/6/29

N2 - The invention pertains to a process for preparing acrylic acid and/or the ester of acrylic acid and lactic acid from a lactic acid oligomer or polymer, comprising the steps of - bringing a reaction mixture comprising the lactic acid oligomer or polymer to reaction conditions to form acrylic acid and/or the ester of acrylic acid and lactic acid, the reacting mixture comprising a halide source selected from a bromide source and/or a chloride source and optionally an acid selected from the group of acids with a pKa of at most 2.0 and compounds which under reaction conditions decompose under the formation of an acid with a pKa of at most 2.0, with the reaction mixture comprising less than 1 wt. % of water, and - keeping the reaction mixture under reaction conditions for a time sufficient to produce acrylic acid and/or the ester of acrylic acid and lactic acid. It has been found that the use of a bromide source and/or a chloride source in combination with the specified acid results in a process which can be operated to obtain a high yield, and is relatively easy to perform.

AB - The invention pertains to a process for preparing acrylic acid and/or the ester of acrylic acid and lactic acid from a lactic acid oligomer or polymer, comprising the steps of - bringing a reaction mixture comprising the lactic acid oligomer or polymer to reaction conditions to form acrylic acid and/or the ester of acrylic acid and lactic acid, the reacting mixture comprising a halide source selected from a bromide source and/or a chloride source and optionally an acid selected from the group of acids with a pKa of at most 2.0 and compounds which under reaction conditions decompose under the formation of an acid with a pKa of at most 2.0, with the reaction mixture comprising less than 1 wt. % of water, and - keeping the reaction mixture under reaction conditions for a time sufficient to produce acrylic acid and/or the ester of acrylic acid and lactic acid. It has been found that the use of a bromide source and/or a chloride source in combination with the specified acid results in a process which can be operated to obtain a high yield, and is relatively easy to perform.

M3 - Patent publication

M1 - WO2017108890

ER -

Verkuijl BJV, van Krieken J, Terrade FG, Bouwman E, Gerritsen G, Wilting J, inventors. Process for manufacturing acrylic acid. C07C 51/ 09 A I. 2017 Jun 29.