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Application of film evaporator in polystyrene production

A thin-film evaporator, polystyrene technology, applied in evaporator accessories, forced circulation evaporators, evaporator regulation/control, etc., can solve the problems of labor costs and product cost increases, reduce processing costs, and improve automation. , the effect of good economic benefits

Active Publication Date: 2021-08-24
GUANGDONG RASTAR SYNTHETIC MATERIAL COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adsorption treatment of the circulating fluid will generate the cost of the adsorbent and the treatment cost. At the same time, the regular replacement of the adsorbent will also generate a certain amount of labor costs, which will increase the cost of the product.

Method used

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  • Application of film evaporator in polystyrene production

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Embodiment Construction

[0025] The application of the thin film evaporator of the present invention in the production of polystyrene is illustrated with reference to the accompanying drawings.

[0026] Application of thin film evaporator in polystyrene production, thin film evaporator is used for purification and reuse of circulating liquid in polystyrene production.

[0027] Further, the thin film evaporator 4 is connected with the polystyrene production line. Specifically, the circulating liquid to be treated on the polystyrene production line is stored in the liquid collection tank 2, the liquid collection tank 2 is connected to the circulating liquid preheater 3 through a pipeline, and the circulating liquid preheater 3 is connected to the thin film evaporator 4 through a pipeline , the top of the thin film evaporator 4 is connected with the condenser 6 on the polystyrene production line, and the condensed circulating liquid enters the circulating liquid tank 1 on the polystyrene production line ...

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Abstract

The invention provides application of a film evaporator in polystyrene production, and belongs to the technical field of resin synthesis. The film evaporator is used for purifying and recycling circulating liquid in polystyrene production. A vacuum condensation system of a polystyrene production line is utilized, the film evaporator is integrated to form a circulation liquid recovery process, and a vacuum system special for the film evaporator and a condenser do not need to be additionally arranged; and reaction heat released by a polystyrene reaction device is used for heating circulating liquid and providing heat required by the film evaporator, so that heat energy recycling is realized.

Description

technical field [0001] The invention relates to the technical field of resin synthesis, in particular to the application of a thin film evaporator in polystyrene production. Background technique [0002] In the existing polystyrene production process, circulating fluid is required. The circulating liquid is mainly the ethylbenzene solvent recovered by the devolatilization system, unreacted styrene and a series of reaction by-products accompanying the polymerization reaction. Due to continuous recycling, the by-products (benzoic acid, dimer, trimer and other impurities) in the circulating fluid continue to accumulate, which reduces the quality of the circulating fluid, resulting in a decline in product quality and processing performance, and severely restricts the production line. production capacity. Generally, the circulating liquid generated in the production process is collected into the circulating liquid storage tank, and then the circulating liquid in the storage tan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D1/22B01D1/30B01D5/00C08F6/00C08L25/06
CPCB01D1/222B01D1/305B01D1/0094B01D1/0082B01D5/006C08F6/00C08L25/06
Inventor 黄彦鹏叶兴业李宏宽蔡泽浩
Owner GUANGDONG RASTAR SYNTHETIC MATERIAL COMPANY