JPS55108422A - Batch-wise esterification - Google Patents
Batch-wise esterificationInfo
- Publication number
- JPS55108422A JPS55108422A JP1630279A JP1630279A JPS55108422A JP S55108422 A JPS55108422 A JP S55108422A JP 1630279 A JP1630279 A JP 1630279A JP 1630279 A JP1630279 A JP 1630279A JP S55108422 A JPS55108422 A JP S55108422A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- batch
- feeding
- feed rate
- wise
- 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.)
- Granted
Links
Landscapes
- Polyesters Or Polycarbonates (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To efficiently produce a high-grade polyester having excellent color in batch-wise esterification, by controlling the feed rate of a slurry consisting of terephtahlic acid and ethylene glycol so that the rate is low at the initial period and high at the latter half period.
CONSTITUTION: The batch-wise esterification comprises the steps of: continuously feeding to a reaction system charged with 30W65% of bis-β-hydroxyethyl terephthalate or lower polymers thereof, a slurry consisting of terephthalic acid and ethylene glycol at such a feed rate that the initial slurry feed rate, Fa(kg/hr), defined as a feed rate at the initial 15% period of the time required for feeding all the slurry, satisfies the inequalities, in which Sv(kg) is the total quantity, per batch, of slurry charged, and Ft(hr) is the time required for feeding all the slurry, and the time required for feeding all the slurry, Ft, is in the range of 2.0W4.5: and reacting the mixture at a pressure of 0W1.0kg/cm2 gauge and a temperature of 225W260°C.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1630279A JPS55108422A (en) | 1979-02-15 | 1979-02-15 | Batch-wise esterification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1630279A JPS55108422A (en) | 1979-02-15 | 1979-02-15 | Batch-wise esterification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55108422A true JPS55108422A (en) | 1980-08-20 |
| JPS6146485B2 JPS6146485B2 (en) | 1986-10-14 |
Family
ID=11912740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1630279A Granted JPS55108422A (en) | 1979-02-15 | 1979-02-15 | Batch-wise esterification |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55108422A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847023A (en) * | 1981-09-16 | 1983-03-18 | Toray Ind Inc | Production of polyester for blow molding |
| US6815525B2 (en) | 2000-12-07 | 2004-11-09 | Eastamn Chemical Company | Component introduction into manufacturing process through recirculation |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03107804A (en) * | 1989-09-14 | 1991-05-08 | Aeg Kabel Ag | Construction and method for storing extra length of optical fiber |
-
1979
- 1979-02-15 JP JP1630279A patent/JPS55108422A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847023A (en) * | 1981-09-16 | 1983-03-18 | Toray Ind Inc | Production of polyester for blow molding |
| US6815525B2 (en) | 2000-12-07 | 2004-11-09 | Eastamn Chemical Company | Component introduction into manufacturing process through recirculation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6146485B2 (en) | 1986-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MY110495A (en) | Process for the production of plasticizer and polyol esters | |
| NZ221286A (en) | Process for the production of dialkyl maleate esters | |
| EP0300347A3 (en) | Process for the hydrogenation of mixtures of methyl esters of fatty acids | |
| EP0300346A3 (en) | Process for the hydrogenation of fatty acid methyl esters in a pressure range of 20 to 100 bars | |
| MY121248A (en) | Process and equipment for the continuous preparation of alkyl esters of (meth) acrylic acid | |
| GB1486409A (en) | Process for the preparation of high-molecular weight polyesters | |
| JPS55108422A (en) | Batch-wise esterification | |
| US3880923A (en) | Production of alpha-chlorocarboxylic acid chlorides | |
| US3088969A (en) | Manufacture of t-butyl esters of unsaturated acids | |
| US2899458A (en) | Process for producing oxy aromatic | |
| ES537130A1 (en) | Process for the preparation of polyurethanes. | |
| WO1987002363A3 (en) | Process for the production of aliphatic phosphonic acids | |
| JPS5646888A (en) | Preparation of alkenylhalosilane | |
| EP0641761B1 (en) | Process for producing dimethyl 2,6-naphthalene-dicarboxylate | |
| JPS53125495A (en) | Preparation of polyester | |
| JPS55100339A (en) | Preparation of carboxylic acid aryl ester | |
| JPS5617921A (en) | Manufacture of potassium sulfate | |
| EP0562806B1 (en) | Process for producing an alpha, beta-unsaturated carboxylic acid | |
| JPS5492933A (en) | Batchwise esterification of terephthalic acid | |
| GB1405303A (en) | Polyester preparation | |
| JPS5257135A (en) | Esterification process | |
| US3590071A (en) | Production of bis-hydroxyalkyl esters of benzene dicarboxylic acids | |
| CA2026031A1 (en) | A process for the preparation of o-silylated hydroxyl compounds and their use for the preparation of isocyanates containing ester groups | |
| GB1402288A (en) | Preparation of polyesters | |
| GB1412306A (en) | Production of polyester resins |