GB1048170A - Process for the preparation of bis-(ª‰-hydroxyethyl)-terephthalate - Google Patents
Process for the preparation of bis-(ª‰-hydroxyethyl)-terephthalateInfo
- Publication number
- GB1048170A GB1048170A GB4448265A GB4448265A GB1048170A GB 1048170 A GB1048170 A GB 1048170A GB 4448265 A GB4448265 A GB 4448265A GB 4448265 A GB4448265 A GB 4448265A GB 1048170 A GB1048170 A GB 1048170A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- terephthalate
- hydroxyethyl
- bis
- rate
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Polyesters Or Polycarbonates (AREA)
Abstract
In a continuous transesterification process for the production of bis (2-hydroxyethyl) terephthalate and oligomers thereof, dimethyl terephthalate and ethylene glycol are introduced in liquid phase into a plurality of series-arranged reaction zones, each of which is surmounted by rectification means to remove methanol, each zone having a ratio of height to the diameter of a circle enclosing the same area as the average cross-section of at most 15: 1, the liquid reaction mixture being circulated upwardly through each zone and the rate of flow of reactants being adjusted so that the rate of flow of gas at the top of each zone is at most 20 litres/dr/cm.2 of cross-sectional area of the zone.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR992024A FR1423984A (en) | 1964-10-20 | 1964-10-20 | Process for the continuous preparation of bis- (beta-hydroxyethyl) terephthalate and oligomers thereof |
FR25157A FR88613E (en) | 1965-07-19 | 1965-07-19 | Process for the continuous preparation of bis- (beta-hydroxyethyl) terephthalate and oligomers thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1048170A true GB1048170A (en) | 1966-11-09 |
Family
ID=26164862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4448265A Expired GB1048170A (en) | 1964-10-20 | 1965-10-20 | Process for the preparation of bis-(ª‰-hydroxyethyl)-terephthalate |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE671108A (en) |
CH (1) | CH436251A (en) |
DE (1) | DE1493113B1 (en) |
GB (1) | GB1048170A (en) |
LU (1) | LU49654A1 (en) |
NL (2) | NL6513513A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3676485A (en) * | 1968-08-12 | 1972-07-11 | Eastman Kodak Co | Method for use in a continuous flow reaction for producing a monomer and or a protopolymer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1111166B (en) * | 1956-07-30 | 1961-07-20 | Du Pont | Process for the preparation of bis (2-oxyaethyl) terephthalate |
NL294427A (en) * | 1962-06-23 |
-
0
- NL NL128260D patent/NL128260C/xx active
-
1965
- 1965-10-19 LU LU49654A patent/LU49654A1/xx unknown
- 1965-10-19 CH CH1439865A patent/CH436251A/en unknown
- 1965-10-19 BE BE671108A patent/BE671108A/xx unknown
- 1965-10-19 NL NL6513513A patent/NL6513513A/xx unknown
- 1965-10-20 GB GB4448265A patent/GB1048170A/en not_active Expired
- 1965-10-20 DE DE19651493113 patent/DE1493113B1/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3676485A (en) * | 1968-08-12 | 1972-07-11 | Eastman Kodak Co | Method for use in a continuous flow reaction for producing a monomer and or a protopolymer |
Also Published As
Publication number | Publication date |
---|---|
BE671108A (en) | 1968-04-19 |
NL128260C (en) | |
NL6513513A (en) | 1966-04-21 |
DE1493113B1 (en) | 1971-02-25 |
CH436251A (en) | 1967-05-31 |
LU49654A1 (en) | 1965-12-20 |
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