Production equipment for PET (poly(ethylene terephthalate)) chip

A production equipment and slicing technology, applied in the field of PET slice production equipment, can solve the problems of too many transition materials, long transition transition time, affecting production costs, etc., and achieve the effects of less transition materials, short transition time, and lower production costs.

Active Publication Date: 2011-09-21
ZHEJIANG WANKAI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing way of adding additives leads to a long transition time between various varieties and a large amount of transition materials, which affects production costs

Method used

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  • Production equipment for PET (poly(ethylene terephthalate)) chip
  • Production equipment for PET (poly(ethylene terephthalate)) chip
  • Production equipment for PET (poly(ethylene terephthalate)) chip

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Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Such as figure 1 As shown, the PET chip production equipment includes a slurry tank 1, a first esterification reactor 2, a second esterification reactor 3, a mixing tank 5, a pre-condensation reactor 4 and a final polycondensation reactor (not shown on the way),

[0027] The slurry tank 1 has a PTA inlet, a MEG inlet, an IPA inlet, a toner inlet, an endothermic agent inlet and a first agitator 11, the PTA inlet is connected to the PTA feeding tank 1a through a pipeline, and the MEG is added The inlet is connected to the MEG feeding pipe 2a, the IPA inlet is connected to the pipeline of the IPA feeding tank 1b, the toner inlet is connected to the toner feeding tank 1c, and the endothermic agent inlet is connected to the pipeline of the endothermic agent feeding tank 1d.

[0028] The first esterification reactor 2 has a second agitator 2...

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Abstract

The invention relates to a production equipment for a PET (poly(ethylene terephthalate)) chip, which comprises a slurry tank, a first esterification reactor, a second esterification reactor, a mixing tank, a pre-condensation-polymerization reactor and a final condensation polymerization reactor, wherein the slurry tank is provided with a PTA (purified terephthalic acid) adding port, an MEG (monoethylene glycol) adding port, an IPA (isophthalic acid) adding port, a toner adding port and a heat absorbent adding port, the discharge port of the mixing tank is connected with the pre-condensation-polymerization reactor through a discharge pipe, and the second esterification reactor is connected with a first toner adding pipe, a heat absorbent adding pipe and a first stabilizer adding pipe; and the pre-condensation-polymerization reactor is connected with a second toner adding pipe and a second stabilizer adding pipe. Compared with the prior art, the production equipment for the PET chip provided by the invention has the advantages of changing the adding mode and adding point of additives, optimizing production process, guaranteeing the stable control of production process, and realizing low transition time, few transition materials and low production cost during variety conversion.

Description

technical field [0001] The invention relates to a PET (polyethylene terephthalate) chip production equipment. Background technique [0002] Bottle-grade PET (polyethylene terephthalate) chips are widely used in food and beverage because of their low acetaldehyde content, good physical and chemical properties, heat resistance and thermal stability, pressure resistance, acid and alkali resistance, colorless and odorless, etc. It is widely used in packaging, and because of its light density, high strength, and non-toxicity, it is widely used in non-food packaging as a substitute for thermoplastic materials such as PP, PE, PC, PV, and PVC. [0003] PET slices have been produced for many years. At present, there are dozens of varieties in production on the market. In food and beverage packaging, there are water bottles, oil bottles, tea drinks, beer bottles, carbonated beverage bottles, and fast heat absorption. The basic process of PET chip production equipment is as follows: ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G63/183C08G63/78C08L67/02
Inventor 章延举
Owner ZHEJIANG WANKAI NEW MATERIAL
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