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Synthesis process of butyl rubber

A synthesis process, butyl rubber technology, applied in the field of butyl rubber synthesis process, can solve the problems of difficult implementation of process flow, complicated production process, low production efficiency, etc., to improve the conversion rate of one pass and the yield of products, The effect of overcoming many processes and improving work efficiency

Inactive Publication Date: 2016-05-11
QINGDAO SHOUTAI AGRI SCI & TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

In the current preparation process of butyl rubber, the technological process is not easy to implement, the purity of the produced butyl rubber is low, the single-pass conversion rate of reactants is low, the production process is complex and pollutes the environment, and the production efficiency is low and the cost is high.

Method used

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Examples

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Embodiment

[0012] The synthetic technique of the butyl rubber of the present embodiment may further comprise the steps:

[0013] (1) The gaseous refrigerant liquefied LNG and the gaseous refrigerant from the gaseous refrigerant buffer tank exchange heat in the LNG heat exchanger. The LNG is vaporized into NG (natural gas) and heated to slightly lower than the temperature of the gaseous refrigerant. After the gaseous refrigerant is directly condensed into a liquid state Enter the liquid refrigerant storage tank;

[0014] (2) Liquid refrigerant temperature adjustment The liquid refrigerant in the liquid refrigerant storage tank enters the flash tank; the pressure is controlled so that the temperature of the liquid refrigerant in the flash tank = -110°C; part of the liquid refrigerant in the flash tank enters the flash tank and the pressure is controlled , so that the temperature of the liquid refrigerant in the flash tank (B-5) = -130°C;

[0015] (3) Liquid refrigerant heat exchange and v...

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Abstract

The invention discloses a synthesis process of butyl rubber. The synthesis process is characterized in that a synthesis system comprises an LNG (liquefied natural gas) heat exchanger, a gaseous coolant buffer tank, a liquid coolant buffer tank, a flash tank I, a flash tank II, a catalyst heat exchanger, a raw material heat exchanger, a polymerization reactor heat exchanger, an air thermostat and a compressor. The synthesis process comprises the following steps: selecting a coolant meeting requirements of the synthesis process of the butyl rubber and an LNG interface condition, such as ethane and ethylene, replacing low-temperature cold contained in LNG with the coolant, and cooling a catalyst solution, cooling a mixed raw material and removing polymerization heat with the low-temperature cold in the coolant through corresponding heat exchange equipment so as to meet requirements of the synthesis process of the butyl rubber on the temperature and the cold.

Description

technical field [0001] The invention belongs to the technical field of medicinal chemistry, and in particular relates to a synthesis process of butyl rubber. Background technique [0002] Butyl rubber is a kind of synthetic rubber, which is synthesized from isobutylene and a small amount of isoprene. It is generally used in the production of car tires and car sound insulation products. Now butyl rubber has been widely used to replace asphalt in the name of environmental protection. In the current preparation process of butyl rubber, the technical process is not easy to implement, the purity of the produced butyl rubber is low, the single-pass conversion rate of reactants is low, the production process is complex and pollutes the environment, the production efficiency is low and the cost is high. Contents of the invention [0003] In order to overcome the above-mentioned technical problems existing in the prior art, the object of the present invention is to provide a ...

Claims

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Application Information

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IPC IPC(8): C08F210/12C08F2/00
Inventor 张晶
Owner QINGDAO SHOUTAI AGRI SCI & TECH CO LTD
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