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1. WO2013052420 - PROCESSES FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES

Publication Number WO/2013/052420
Publication Date 11.04.2013
International Application No. PCT/US2012/058305
International Filing Date 01.10.2012
IPC
C07C 67/317 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
30by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
317by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
C07C 69/54 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
69Esters of carboxylic acids; Esters of carbonic or haloformic acids
52Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
533Monocarboxylic acid esters having only one carbon-to-carbon double bond
54Acrylic acid esters; Methacrylic acid esters
C07C 51/42 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides, or anhydrides
42Separation; Purification; Stabilisation; Use of additives
C07C 57/04 2006.1
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
57Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
02with only carbon-to-carbon double bonds as unsaturation
03Monocarboxylic acids
04Acrylic acid; Methacrylic acid
CPC
B01D 3/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
14Fractional distillation ; or use of a fractionation or rectification column
B01D 3/34
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
34with one or more auxiliary substances
B01D 3/36
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
3Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
34with one or more auxiliary substances
36Azeotropic distillation
C07C 51/353
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides or anhydrides
347by reactions not involving formation of carboxyl groups
353by isomerisation; by change of size of the carbon skeleton
C07C 51/42
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides or anhydrides
42Separation; Purification; Stabilisation; Use of additives
C07C 51/44
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
51Preparation of carboxylic acids or their salts, halides or anhydrides
42Separation; Purification; Stabilisation; Use of additives
43by change of the physical state, e.g. crystallisation
44by distillation
Applicants
  • CELANESE INTERNATIONAL CORPORATION [US]/[US] (AllExceptUS)
  • PETERSON, Craig J. [US]/[US] (US)
  • CHAPMAN, Josefina T. [US]/[US] (US)
  • GALLACHER, Jonathan [US]/[US] (US)
Inventors
  • PETERSON, Craig J.
  • CHAPMAN, Josefina T.
  • GALLACHER, Jonathan
Agents
  • KENNEDY, Nicoletta
Priority Data
13/251,62303.10.2011US
13/345,04306.01.2012US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) PROCESSES FOR PRODUCING ACRYLIC ACIDS AND ACRYLATES
(FR) PROCÉDÉS DE PRODUCTION D'ACIDES ACRYLIQUES ET D'ACRYLATES
Abstract
(EN) In one embodiment, the invention is to a process for producing an acrylate product. The process comprises the step of providing a crude product stream comprising the acrylate product and an alkylenating agent. The process further comprises the step of separating at least a portion of the crude product stream to form an alkylenating agent stream and an intermediate product stream. The alkylenating agent stream comprises at least 1 wt% alkylenating agent and the intermediate product stream comprises acrylate product. The separating is performed in at least one column at an operating pressure ranging from 40 kPa to 80 kPa.
(FR) L'invention concerne, dans un mode de réalisation, un procédé de production d'un produit d'acrylate. Le procédé consiste à utiliser un flux d'un produit brut comprenant le produit d'acrylate et un agent d'alkylénation. Le procédé consiste en outre à séparer au moins une partie du flux du produit brut pour former un flux d'agent d'alkylénation et un flux de produit intermédiaire. Le flux d'agent d'alkylénation comprend au moins 1% en poids de l'agent d'alkylénation et le flux de produit intermédiaire comprend le produit acrylate. La séparation s'effectue dans au moins une colonne, à une pression effective de 40 kPa à 80 kPa.
Latest bibliographic data on file with the International Bureau