Devolatilization and feeding two-in-one device, solution polymerization device and polymerization method

A polymerization device, a two-in-one technology, applied in the direction of feeding device, chemical instrument and method, chemical/physical/physicochemical fixed reactor, etc., can solve high energy consumption, low desolvation efficiency, high polymer color number, etc. problem, to achieve the effect of high manufacturing and maintenance difficulty and large floor space

Pending Publication Date: 2022-04-05
WANHUA CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, the extruder desolventization method still has the disadvantages of low desolventization efficiency, high energy consumption, and high polymer color number, and cannot achieve the removal of various high boiling point solvents. Therefore, it is necessary to develop an extruder that can overcome the above defects Desolvation method or solution polymerization unit is critical

Method used

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  • Devolatilization and feeding two-in-one device, solution polymerization device and polymerization method
  • Devolatilization and feeding two-in-one device, solution polymerization device and polymerization method
  • Devolatilization and feeding two-in-one device, solution polymerization device and polymerization method

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Experimental program
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Embodiment 1

[0153] This embodiment provides a solution polymerization device, the schematic diagram of which is as follows figure 1 As shown, the solution polymerization device includes a reaction system and a solvent removal system;

[0154] Described reaction system comprises reactor 1;

[0155] The solvent removal system includes a first solvent removal system and a second solvent removal system;

[0156] The first solvent removal system includes a devolatilization feeding two-in-one device 3;

[0157] The second solvent removal system includes a co-rotating twin-screw extruder 4, a first solvent buffer tank 8, a second solvent buffer tank 9, a solvent storage tank 10 and a control system;

[0158] The reaction kettle is connected to the two-in-one device for devolatilization and feeding in the first solvent removal system through a delivery pump 2;

[0159] The control system includes a vacuum system 11, which is a vacuum pump group, a first cooling system 12, a second cooling syst...

Embodiment 2

[0168] The difference between this embodiment and Embodiment 1 is that the inner wall surface of the devolatilization and feeding two-in-one device is provided with a hexagonal groove structure 28, and the rotatable surface distribution device includes a first scraping film plate 24, a second The scraper 25, the third scraper 26 and the fourth scraper 27 are arranged parallel to each other, and the included angle with the axial direction is 30°. Shown, all the other are identical with embodiment 1.

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Abstract

The invention relates to a devolatilization and feeding two-in-one device, a solution polymerization device and a polymerization method.The devolatilization and feeding two-in-one device is internally provided with a rotatable surface distribution device used for distributing materials on the surface of the inner wall of the device; a heating jacket is arranged on the outer surface; a gas outlet pipeline and a material inlet pipeline are arranged at the top; and a single-screw conveying device is arranged at the bottom and is used for conveying the devolatilized materials into a next treatment component. The devolatilization and feeding two-in-one device has devolatilization and feeding functions and is high in devolatilization efficiency, a solution polymerization device further formed can remove various high-boiling-point solvents, and the devolatilization and feeding two-in-one device is particularly suitable for production of solid polymers with high glass-transition temperature values and high viscosity and has wide application prospects. The high-temperature heat storage time of the polymer can be shortened, the polymer is prevented from discoloring and deteriorating, and meanwhile the requirements for production automation and high efficiency are met.

Description

technical field [0001] The invention relates to the technical field of solution polymerization, in particular to a devolatilization and feed two-in-one device, a solution polymerization device and a polymerization method. Background technique [0002] Solution polymerization is an important method for synthesizing high molecular polymers at present, which has the characteristics of simple process, easy heat transfer and low process viscosity. However, most of the polymers obtained by solution polymerization need to be separated from the solvent in order to function. With the decrease of the amount of solvent added or the removal of solvent, the viscosity of the system will increase rapidly. If the monomer used contains monomers with higher glass transition temperature such as styrene, methyl styrene, acrylic acid, methacrylate, acrylonitrile, etc., the Tg of the product polymer will be as high as 100-250 °C, and the solvent content is small. Or a large amount of heat is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/18B01J4/00
Inventor 何友益孙永建纪学顺
Owner WANHUA CHEM GRP CO LTD
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