JPS54151939A - Slurry feed of comprising terephthalic acid and ethylene glycol - Google Patents

Slurry feed of comprising terephthalic acid and ethylene glycol

Info

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
Application number
JP5759278A
Other languages
Japanese (ja)
Other versions
JPS6121462B2 (en
Inventor
Kazuhisa Kusunoki
Yosuke Tanabe
Seiji Kakimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP5759278A priority Critical patent/JPS54151939A/en
Publication of JPS54151939A publication Critical patent/JPS54151939A/en
Publication of JPS6121462B2 publication Critical patent/JPS6121462B2/ja
Granted legal-status Critical Current

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
JP5759278A 1978-05-17 1978-05-17 Slurry feed of comprising terephthalic acid and ethylene glycol Granted JPS54151939A (en)

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)

Also Published As

Publication number Publication date
JPS6121462B2 (en) 1986-05-27

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