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Manufacturing method and device for aromatic vinyl compound-vinyl cyanide compound polymer

A technology of aromatic vinyl and vinyl cyanide, applied in chemical instruments and methods, separation methods, vacuum distillation, etc., can solve the problems of high cost, environmental pollution of volatile components, etc., reduce wastewater treatment costs and improve condensation Efficiency, the effect of the amount of reduction

Active Publication Date: 2020-08-25
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, waste water treatment leads to high costs, and the discharged volatile components cause environmental pollution

Method used

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  • Manufacturing method and device for aromatic vinyl compound-vinyl cyanide compound polymer
  • Manufacturing method and device for aromatic vinyl compound-vinyl cyanide compound polymer
  • Manufacturing method and device for aromatic vinyl compound-vinyl cyanide compound polymer

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026] According to the preparation method of the aromatic vinyl compound-vinyl cyanide compound polymer of the present invention, comprising: using a volatilization tank to obtain the aromatic vinyl compound-vinyl cyanide compound polymer, residual aromatic vinyl A step of separating volatile components from the polymerization product of cyanide monomer and organic solvent; and a step of condensing the separated volatile components using a condenser or two or more condensers connected in series, wherein the The preparation method includes the step of spraying an organic solvent onto the separated volatile components being transported from the vaporizer to the condenser; or, when using two or more condensers connected in series A step of spraying an organic solvent or an aromatic vinyl monomer onto the volatile components that have not been condensed in the first condenser and are being transported to the second condenser. According to the preparation method of the present inv...

Embodiment 1

[0083] The volatile components were separated according to separation condition A. The separated volatile components are then condensed in a first condenser according to condensation condition A, and the uncondensed volatile components are then transferred to a second condenser and condensed there. At this point, toluene is sprayed at a flow rate of 45 kg / hr onto the volatile components that are being transported to the first condenser after separation in the volatilizer, not to the uncondensed in the first condenser and being transported to the second condenser The volatile components are sprayed.

Embodiment 2

[0085] The volatile components were separated according to separation condition A. The separated volatile components are then condensed in a first condenser according to condensation condition A, and the uncondensed volatile components are then transferred to a second condenser and condensed there. At this time, the volatile components that are being transported to the first condenser after being separated in the volatilizer are not injected, and styrene is injected at a flow rate of 30 kg / hr into the first condenser that is not condensed and is being forwarded to the second condenser. On the volatile components transmitted by the condenser.

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PUM

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Abstract

The present disclosure pertains to a manufacturing method and device for an aromatic vinyl compound-vinyl cyanide compound polymer and, more particularly, to a method for manufacturing an aromatic vinyl compound-vinyl cyanide compound polymer, the method comprising the steps of: separating a volatile component from a polymer product containing an aromatic vinyl compound-vinyl cyanide compound polymer, a residual aromatic vinyl monomer, a residual vinyl cyanide monomer, and an organic solvent by means of a volatilization tank; and condensing the separated volatile component by means of a condenser, wherein an organic solvent or an aromatic vinyl monomer is sprayed to the volatile component being delivered to the condenser. According to the present disclosure, there are no volatile components discharged following condensation because the volatile components are entirely condensed in the condenser, whereby a reduction is brought about in a waste water treatment cost for treating the volatile components and in the air emission of vinyl cyanide monomers toxic to the human body.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims Korean Patent Application No. 10-2018-0164399 filed at KIPO on Dec. 18, 2018 and refiled at KIPO on Jun. 19, 2019 based on the priority of the above patent Priority to Patent Application No. 10-2019-0072784, the disclosures of both patent applications are incorporated herein by reference. [0003] The invention relates to a preparation method and a preparation device of an aromatic vinyl compound-vinyl cyanide compound polymer. More specifically, the present invention relates to a preparation method of an aromatic vinyl compound-vinyl cyanide compound polymer, which preparation method comprises: a step of separating volatile components from the polymerization product of vinyl group monomer, residual vinyl cyanide monomer and organic solvent; and condensing the separated volatile components by using one condenser or two or more condensers connected in series volatile components, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/10C08F6/00C08F6/20C08F2/01
CPCC08F6/001C08F212/10C08F2/01B01D3/10B01D5/0027B01D5/006C08F220/44C08L25/12C08F220/10C08F6/003C08F6/20
Inventor 黄贞雅申大荣张诚根周垠廷李元均
Owner LG CHEM LTD