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Continuous polymerization production method of petroleum resin

A petroleum resin and production method technology, applied in the field of continuous polymerization production of petroleum resin, can solve the problems of unsuitability for large-scale industrial production, low degree of automation, high labor intensity, etc., to maintain stability, increase efficiency, and reduce energy consumption Effect

Active Publication Date: 2012-08-22
ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The common point of the above patents is that the preparation method and polymerization reaction are single-pot batch-type, and its disadvantages are high energy consumption, low degree of automation, and high labor intensity, which are not suitable for large-scale industrial production.

Method used

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  • Continuous polymerization production method of petroleum resin
  • Continuous polymerization production method of petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The raw materials are C5 fraction (a) and C9 fraction (b) with a mass ratio of 1:1.5, after being pre-mixed by a static mixer (1), they enter the polymerization reactor (2) continuously from the side of the kettle, and the catalyst solution (c) continuously flows from The tank top enters the reactor, and the catalyst is 0.2wt% of the mixed material liquid. Stir in the polymerization tank to mix the feed liquid, polymerize at a temperature of 45°C, and circulate the polymerization feed liquid (d) into the condenser (4) through the circulating pump (3) connected to the bottom of the tank to condense and return to the reactor Continuing polymerization, circulation pump (3) flow rate is 10m 3 / h. The flow rate of the extraction pump (5) at the bottom of the kettle is controlled at 70m 3 / h, continuous extraction of polymer feed liquid (e). The extracted polymer liquid (e) is subjected to continuous alkali washing to complete alkali washing, slag removal and water washing...

Embodiment 2

[0038] The raw materials are C5 fraction (a) and C9 fraction (b) with a mass ratio of 1:1. After being pre-mixed by a static mixer (1), they enter the polymerization reactor (2) continuously from the tank side, and the catalyst solution (c) continuously flows from The tank top enters the reactor, and the catalyst is 0.4wt% of the mixed material liquid. Stir in the polymerization tank to mix the feed liquid, polymerize at a temperature of 60°C, and circulate the polymerization feed liquid (d) into the condenser (4) through the circulating pump (3) connected to the bottom of the tank to condense and return to the reactor Continuing polymerization, circulation pump (3) flow rate is 15m 3 / h. The flow rate of the extraction pump (5) at the bottom of the kettle is controlled at 80m 3 / h, continuous extraction of polymer feed liquid (e). The extracted polymer liquid (e) is subjected to continuous alkali washing to complete alkali washing, slag removal and water washing (X). The ...

Embodiment 3

[0040] The raw materials are C5 fraction (a) and C9 fraction (b) with a mass ratio of 1.5:1. After being pre-mixed by a static mixer (1), they enter the polymerization reactor (2) continuously from the side of the kettle, and the catalyst solution (c) continuously flows from The tank top enters the reactor, and the catalyst is 0.8wt% of the mixed material liquid. Stir in the polymerization tank to mix the feed liquid, polymerize at a temperature of 80°C, and circulate the polymerization feed liquid (d) into the condenser (4) through the circulation pump (3) connected to the bottom of the tank to condense and return to the reactor Continuing polymerization, circulation pump (3) flow rate is 20m 3 / h. The flow rate of the extraction pump (5) at the bottom of the kettle is controlled at 90m 3 / h, continuous extraction of polymer feed liquid (e). The extracted polymer material (e) is subjected to continuous alkali washing to complete alkali washing, slag removal and water washin...

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Abstract

The invention provides a continuous polymerization production method of petroleum resin. The continuous polymerization production method comprises the following steps: raw materials are pre-mixed in a static mixer, and then continuously enter into a polymerization reaction kettle from a kettle side; a catalyst solution enters into the polymerization reaction kettle continuously from a kettle top;mixed material liquid are stirred in the polymerization reaction kettle to generate polymerization reaction; polymerization material liquid is fed to a condenser for condensation through a circulating pump connected with the kettle bottom, and then the condensed polymerization material liquid returns to the reaction kettle to be polymerized continously; and the polymerization material liquid is continuously extracted by an extraction pump at the kettle bottom and then subjected to posttreatment so as to obtain the petroleum resin product. In the method, the production process especially polymerization reaction is continuously carried out, thus the petroleum resin with good hue and molecule weight is obtained, gelatin and implosion phenomena do not happen, the stability of the product quality can be guaranteed, simultaneously, energy consumption is reduced, and benefits are increased.

Description

technical field [0001] The invention relates to a process for producing petroleum resin, in particular to a method for producing C5 and C9 copolymerized petroleum resin through continuous polymerization in industry. Background technique [0002] The development and utilization of petroleum resin was originally to replace pine resin and its derivatives, and has now become an effective way to rationally utilize the C5 and C9 fractions of by-products of ethylene cracking. [0003] C5 petroleum resin has the advantages of light color, good compatibility with natural rubber, heat resistance, oxidation resistance and light aging, and stable storage. It is widely used as tackifying resin for natural rubber and synthetic rubber. But its softening point is lower and its relative price is more expensive. C9 petroleum resin has a darker color, and because of its high polarity, it has poor compatibility with natural rubber and is only compatible with styrene-butadiene rubber. However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00
Inventor 刘玉国沈志龙赵新来张宗龙刘伟于景东赵晓华吕成刚王玉磊
Owner ZIBO LUHUA HONGJIN NEW MATERIAL CO LTD
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