GB923595A - Improvements in and relating to the production of acrylic esters - Google Patents
Improvements in and relating to the production of acrylic estersInfo
- Publication number
- GB923595A GB923595A GB4166060A GB4166060A GB923595A GB 923595 A GB923595 A GB 923595A GB 4166060 A GB4166060 A GB 4166060A GB 4166060 A GB4166060 A GB 4166060A GB 923595 A GB923595 A GB 923595A
- Authority
- GB
- United Kingdom
- Prior art keywords
- base product
- acrylic acid
- present
- treatment
- esterification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A high-boiling base product containing polymeric material which is obtained in the production of an alkyl ester of acrylic acid by reaction between an alkanol and acrylic acid is depolymerized by heating to a temperature of about 200 DEG to about 350 DEG C. in the substantial absence of molecular oxygen, and a fraction containing the reformed monomers is taken off overhead. The base product may previously be treated to remove any volatile monomers present therein, for example by treatment in a film evaporator as disclosed in Specification 923,594. Atmospheric pressure is preferred for the cracking reaction but higher or lower pressures may be used and a stream of inert gas such as nitrogen may be passed through the liquid material being cracked. A cracking catalyst may be present and may be the esterification catalyst present in the base product as withdrawn from the esterification reactor. Examples are given of the treatment of a base product obtained according to Specification 923,594, the products being principally ethyl acrylate and acrylic acid.ALSO:A high-boiling base product containing polymeric material which is obtained in the production of an alkyl ester of acrylic acid by reaction between an alkanol and acrylic acid is depolymerized by heating to a temperature of about 200 DEG to about 350 DEG C. in the substantial absence of molecular oxygen, and a fraction containing the reformed monomers is taken off overhead. The base product may previously be treated to remove any volatile monomers present therein, for example by treatment in a film evaporator as disclosed in Specification 923,594. Atmospheric pressure is preferred for the cracking reaction but higher or lower pressures may be used and a stream of inert gas such as nitrogen may be passed through the liquid material being cracked. A cracking catalyst may be present and may be the esterification catalyst present in the base product as withdrawn from the esterification reactor. Recovered acrylic acid may be recycled to the esterification. Examples are given of the treatment of a base product obtained according to Specification 923,594 and specific products obtained by the cracking reaction are acetaldehyde, diethyl ether, ethanol, ethyl acetate, ethyl acrylate, acetic acid, acrylic acid, ethyl b -ethoxypropionate and ethyl b -acetoxypropionate.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4166060A GB923595A (en) | 1960-12-03 | 1960-12-03 | Improvements in and relating to the production of acrylic esters |
FR880627A FR1307204A (en) | 1960-12-03 | 1961-12-01 | Process and recovery of monomers from a residue resulting from the production of an ester of acrylic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4166060A GB923595A (en) | 1960-12-03 | 1960-12-03 | Improvements in and relating to the production of acrylic esters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB923595A true GB923595A (en) | 1963-04-18 |
Family
ID=10420708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4166060A Expired GB923595A (en) | 1960-12-03 | 1960-12-03 | Improvements in and relating to the production of acrylic esters |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1307204A (en) |
GB (1) | GB923595A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0765860A1 (en) | 1995-09-28 | 1997-04-02 | Basf Aktiengesellschaft | Process for esterifying (meth)acrylic acid with an alcanol |
EP0780359A1 (en) | 1995-12-19 | 1997-06-25 | Basf Aktiengesellschaft | Esterification process of (meth)acrylic acid with an alcanol |
EP0780360A1 (en) | 1995-12-19 | 1997-06-25 | Basf Aktiengesellschaft | Esterification process of (meth)acrylic acid with an alcanol |
US5763643A (en) * | 1995-09-28 | 1998-06-09 | Basf Aktiengesellschaft | Preparation of alkyl esters of (meth)acrylic acid |
US5910603A (en) * | 1995-09-28 | 1999-06-08 | Basf Aktiengesellschaft | Esterification of (meth)acrylic acid with an alkanol |
FR2901272A1 (en) * | 2006-05-18 | 2007-11-23 | Arkema France | IMPROVED PROCESS FOR THE MANUFACTURE OF (C1) C4 ALKYL (METH) ACRYLATES |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2727964B1 (en) * | 1994-12-12 | 1997-01-24 | Atochem Elf Sa | PROCESS FOR RECOVERING THE LIGHT NOBLE PRODUCTS CONTAINED IN THE DISTILLATION RESIDUES FROM THE MANUFACTURING PROCESSES OF ACRYLIC ACID AND ITS ESTERS |
-
1960
- 1960-12-03 GB GB4166060A patent/GB923595A/en not_active Expired
-
1961
- 1961-12-01 FR FR880627A patent/FR1307204A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0765860A1 (en) | 1995-09-28 | 1997-04-02 | Basf Aktiengesellschaft | Process for esterifying (meth)acrylic acid with an alcanol |
US5763643A (en) * | 1995-09-28 | 1998-06-09 | Basf Aktiengesellschaft | Preparation of alkyl esters of (meth)acrylic acid |
US5767306A (en) * | 1995-09-28 | 1998-06-16 | Basf Aktiengesellschaft | Esterification of (meth)acrylic acid with an alkanol |
US5910603A (en) * | 1995-09-28 | 1999-06-08 | Basf Aktiengesellschaft | Esterification of (meth)acrylic acid with an alkanol |
EP0780359A1 (en) | 1995-12-19 | 1997-06-25 | Basf Aktiengesellschaft | Esterification process of (meth)acrylic acid with an alcanol |
EP0780360A1 (en) | 1995-12-19 | 1997-06-25 | Basf Aktiengesellschaft | Esterification process of (meth)acrylic acid with an alcanol |
FR2901272A1 (en) * | 2006-05-18 | 2007-11-23 | Arkema France | IMPROVED PROCESS FOR THE MANUFACTURE OF (C1) C4 ALKYL (METH) ACRYLATES |
Also Published As
Publication number | Publication date |
---|---|
FR1307204A (en) | 1962-10-19 |
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