JPS54151939A - Slurry feed of comprising terephthalic acid and ethylene glycol - Google Patents
Slurry feed of comprising terephthalic acid and ethylene glycolInfo
- Publication number
- JPS54151939A JPS54151939A JP5759278A JP5759278A JPS54151939A JP S54151939 A JPS54151939 A JP S54151939A JP 5759278 A JP5759278 A JP 5759278A JP 5759278 A JP5759278 A JP 5759278A JP S54151939 A JPS54151939 A JP S54151939A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- ethylene glycol
- terephthalic acid
- molar ratio
- tpa
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To feed a slurry comprising terephthalic acid and ethylene glycol at a given molar ratio to batch wise esterification reactors, by keeping the material feed constant with a signal from a level gauge provided in a slurry tank.
CONSTITUTION: A slurry comprising terephthalic acid (TPA) and ethylene glycol (EG) is fed to the batchwise esterification reactors 30W33 while controlling the slurry production and molar ratio by means of the terephthalic acid weight controller 12, the ethylene glycol flow controller 13, and the arithmetic unit 14 of molar ratio drivingly connected to the signal from the level gauge in the slurry tank 7. The set point of molar ratio of EG to TPA is preferably 0.8W2.0:1.
EFFECT: Constant high degree of accuracy, e.g. ±0.02 of the setpoint. Low equipment cost due to small sized slurry tanks and agitators. Monitoring is unnecessary because of controllability even with change in slurry amounts.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5759278A JPS54151939A (en) | 1978-05-17 | 1978-05-17 | Slurry feed of comprising terephthalic acid and ethylene glycol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5759278A JPS54151939A (en) | 1978-05-17 | 1978-05-17 | Slurry feed of comprising terephthalic acid and ethylene glycol |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54151939A true JPS54151939A (en) | 1979-11-29 |
JPS6121462B2 JPS6121462B2 (en) | 1986-05-27 |
Family
ID=13060111
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5759278A Granted JPS54151939A (en) | 1978-05-17 | 1978-05-17 | Slurry feed of comprising terephthalic acid and ethylene glycol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54151939A (en) |
-
1978
- 1978-05-17 JP JP5759278A patent/JPS54151939A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6121462B2 (en) | 1986-05-27 |
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