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Process system and method for removing volatile matter from polymer

A process system and polymer technology, which is applied in the field of process systems for removing volatile matter from polymers, can solve problems such as high manufacturing costs, high energy consumption and production costs, and complicated maintenance, so as to reduce maintenance and repair costs and prolong service life Longevity, avoiding the effect of equipment clogging

Pending Publication Date: 2022-04-19
上海睿昊化工技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the complex structure and high manufacturing cost of the equipment for removing volatilization of polymers in the prior art, it is easy to be damaged during the operation and production process, and the maintenance is complicated, which affects the continuity of production; The production cost is high, the production risk factor is high; and the defect that the volatile matter in the polymer with high viscosity and poor fluidity cannot be effectively removed, the invention provides a process system and method for removing volatile matter from the polymer

Method used

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  • Process system and method for removing volatile matter from polymer
  • Process system and method for removing volatile matter from polymer

Examples

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Embodiment 1

[0098] The process system for removing volatilization of the polymer in Example 1 also includes a delivery pump, a condenser, a solvent recovery system, a static mixer 7 and a granulator; the wound tube heat exchanger also includes a thermometer 13 .

[0099] In order to more clearly present the schematic diagram of the process system for polymer removal of volatile matter in the embodiment, figure 1 Transfer pumps, condensers, solvent recovery systems, and pelletizers are not included in this document.

[0100] The delivery pump is connected to the first coiled heat exchanger 1 and is used to transport the materials in the polymerization section to the first coiled heat exchanger 1 .

[0101] The condenser is connected with the gas phase outlet of the devolatilizer to recover the solvent.

[0102] The static mixer 7 is connected with the second devolatilizer 5, and is used for mixing the additive with the devolatilized polymer and cooling the polymer containing the additive....

Embodiment 2

[0119] The method for polymer removal of volatile matter in the embodiment 2 adopts the above-mentioned process system; the steps are as follows:

[0120] (1) butene-1 homopolymer solution is discharged from the polymerization reactor (100Kg / h), and the butene-1 homopolymer solution containing butene-1 monomer is delivered to In the first coiled heat exchanger 1 of the first devolatilization unit; wherein, the polymer that carries out devolatilization treatment is butene-1 homopolymer solution, and its mass concentration is 25%, and melting index MIE is 0.4, butene The mass content of en-1 is 8%.

[0121] Setting the temperature and pressure of the polymer inlet connection of the coiled heat exchanger in the first devolatilization unit, the temperature and pressure of the polymer outlet connection of the coiled heat exchanger, and the temperature and pressure of the devolatilizer;

[0122] Wherein, the temperature of the first polymer inlet joint 11 of the first coiled tube h...

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Abstract

The invention discloses a process system for removing volatile matters from a polymer and a method thereof. The process system for removing volatile matters from polymers comprises n devolatilization units which are sequentially connected in series, wherein n is greater than or equal to 1; each devolatilization unit comprises a coiled tube heat exchanger and a devolatilization device which are sequentially connected in series; the coiled tube type heat exchanger comprises a heat exchanger cavity, m coiled tube type heat exchange tubes connected in series are arranged in the heat exchanger cavity, and m is larger than or equal to 1. And the diameter of the coiled tube type heat exchange tube is 6-38mm. According to the process system for removing the volatile matter in the polymer, the mass content of the volatile matter in the polymer can be effectively reduced, and the energy consumption is low; meanwhile, the temperature can be accurately controlled, and the uniformity of the temperature and viscosity of the polymer in the heat exchanger is ensured, so that equipment blockage is avoided, the maintenance and repair cost is reduced, and the service life is prolonged.

Description

technical field [0001] The invention relates to a process system and method for removing volatile matter from polymers. Background technique [0002] High-molecular polymers are usually prepared by the polymerization of monomers, in which there are usually some unreacted monomers, impurities and solvents. The above-mentioned monomers, impurities, solvents, and low-molecular components such as water and reaction by-products are generally referred to as volatile share. In the production process, it generally includes a polymerization section and a devolatilization section. Among them, the mass content of volatile matter in the product obtained in the polymerization section is as high as 10% to 80%, which will significantly affect the quality and performance of the polymer product. After the mass content of volatile matter is reduced in the devolatilization section, the degree of polymerization and the degree of polymerization of the polymer can be improved. performance, odor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F6/10C08F210/08C08F110/08
CPCC08F6/10C08L23/20Y02P20/10
Inventor 高华李志杜周含子
Owner 上海睿昊化工技术有限公司