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Chloroprene concentration system

A technology of chloroprene and enrichment device, which is applied in the field of enrichment, can solve the problems of easy freezing, large amount of refrigerant used, system operation stability and adverse effects on production efficiency, etc., and achieve the goal of reducing consumption and improving resource utilization Effect

Active Publication Date: 2021-07-16
BLUESTAR BEIJING TECH CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the interior of the chloroprene concentration system of the prior art is easy to freeze, the amount of refrigerant is large, and the energy consumption is high. The ice method introduces CaCl2 brine to pollute the material system, causing adverse effects on the stability of system operation and production efficiency

Method used

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  • Chloroprene concentration system

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically conn...

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Abstract

The invention relates to the technical field of concentration, in particular to a chloroprene concentration system which comprises a reaction concentration device and a condensing device, the condensing device comprises an initial condenser and a fractional condenser, gas passages of the reaction concentration device, the initial condenser and the fractional condenser sequentially communicate with one another, and a refrigerant inlet of the initial condenser communicates with a refrigerant outlet of the fractional condenser. Refrigerant passages of the initial condenser and the fractional condenser are connected in series to replace independent cooling, the problem that freezing is prone to occurring due to the fact that the temperature difference between frozen saline water and system heat exchange material flow is large when the initial condenser adopts the frozen saline water as refrigerant for independent cooling is solved, frequent deicing is avoided, efficient and stable production is guaranteed, the refrigerant consumption is reduced, and the purposes of saving energy and reducing consumption are achieved. The interior of the initial condenser can be prevented from being iced, the initial condenser does not need to be subjected to deicing treatment, the operation stability of the concentration system is guaranteed, the production efficiency is further improved, when the interior of the initial condenser is iced, online deicing is achieved, and the problem that a material system is polluted by CaCl2 saline water introduced into an original deicing process is solved.

Description

technical field [0001] The invention relates to the technical field of enrichment, in particular to a chloroprene enrichment system. Background technique [0002] Chloroprene is a special monomer for the production of chloroprene rubber. The commonly used process for the production of chloroprene is the acetylene method, which mainly includes calcium carbide to generate acetylene, vinyl acetylene (MVA) synthesis, and chloroprene synthesis. process. In its production process, the reaction gas from the chloroprene synthesis tower passes through the concentration tower to separate most of the unreacted MVA, and the MVA gas from the top of the concentration tower passes through the initial condenser, partial condenser and total After condensing in the condenser, it enters the MVA gas-liquid separator to separate the acid water and then recycles it. The bottom of the concentration tower obtains crude chloroprene, which is rectified in the rectification tower to obtain refined ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C17/383C07C17/38C07C21/21
CPCC07C17/383C07C17/38C07C21/21Y02P20/10
Inventor 苏肇基和立超倪华方刘晨宇李宇王志方
Owner BLUESTAR BEIJING TECH CENT
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