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PET (Polyethylene Terephthalate) slice production system and production process thereof

A production system and slicing technology, applied in the production process field of the PET slicing production system, can solve the problems of high energy consumption and low technical efficiency, and achieve the effects of low temperature, long residence time and high production efficiency

Active Publication Date: 2014-10-08
ZHUHAI HUARUN PACKAGING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, the current PET chip production technology has low efficiency and high energy consumption

Method used

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  • PET (Polyethylene Terephthalate) slice production system and production process thereof
  • PET (Polyethylene Terephthalate) slice production system and production process thereof
  • PET (Polyethylene Terephthalate) slice production system and production process thereof

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Embodiment Construction

[0034] Such as figure 1 with figure 2 As shown, in this embodiment, the PET chip production system includes a polyester device, a solid-phase polycondensation device and several buffer bins 1 arranged between the polyester device and the solid-phase polycondensation device, and is characterized in that: The polyester plant comprises a slurry preparation device 1a, a first esterification reactor 2a, a second esterification reactor 3a, a pre-condensation reactor 4a, a final polycondensation reactor 5a, a melt filter 6a, and a cut-off reactor connected in sequence. Feeding device 7a and slice collection hopper 8a, also communicated with phthalic acid feed pipe 80a, ethylene glycol feed pipe 22a and additive feed pipe 9a on the described slurry preparation device 1a, described slurry preparation device 1a and Two slurry delivery pumps 10a are arranged in parallel between the first esterification reactors 2a, and the polyester plant also includes a connection with the first ester...

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Abstract

The invention discloses a PET (Polyethylene Terephthalate) slice production system and a production process thereof and aims to provide a PET slice production system which is high in production efficiency, low in energy consumption, high in quality and high in yield and a simple, convenient and efficient production process of the PET slice production system. The PET slice production system comprises a polyester device, a solid-phase polycondensation device and a plurality of buffer bins (1) arranged between the polyester device and the solid-phase polycondensation device. The production process of the PET slice production system comprises the steps: slurry preparation; esterification reaction; pre-polycondensation reaction; final polycondensation reaction; slicing; storing; pre-crystallizing; slow preheating; solid-phase polycondensation reaction; cooling; gas purification; and storing. The PET slice production system and the production process thereof are applied to the technical field of PET slice production.

Description

technical field [0001] The present invention relates to a PET slice production system, and also relates to a production process of the PET slice production system. Background technique [0002] At present, polyethylene terephthalate, or PET for short, is a common resin in daily life. PET is a milky white or light yellow, highly crystalline polymer with a smooth and shiny surface. It has excellent physical and mechanical properties in a wide temperature range. The long-term use temperature can reach 120 ° C. It has excellent electrical insulation. Even at high temperature and high frequency, its electrical properties are still good, but its corona resistance is poor. Creep resistance, fatigue resistance, friction resistance and dimensional stability are all very good. PET has an ester bond, which will decompose under the action of strong acid, strong alkali and water vapor, and has good resistance to organic solvents and weather resistance. The disadvantages are slow c...

Claims

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Application Information

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IPC IPC(8): C08G63/78C08G63/183
Inventor 陈国康张成礼曾荣温杰文
Owner ZHUHAI HUARUN PACKAGING MATERIALS
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