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Production method of petroleum resin

A production method and technology of petroleum resin, applied in the field of continuous operation of petroleum resin production, can solve the problems of restricted production capacity, large fluctuation of product quality, long production cycle, etc., to achieve control of molecular weight and molecular weight distribution, stable and consistent performance indicators, and achieve The effect of large-scale industrialization

Active Publication Date: 2012-01-11
朗盈科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, with intermittent operation, since the resin is easy to coke on the wall of the kettle when discharging, when the next cycle of distillation is carried out, the coked resin bonded on the wall of the kettle remains in the resin liquid, causing black spots on the resin and affecting the quality of the product. In addition, the control method of intermittent operation is low, the product quality (color, softening point, etc.) fluctuates greatly, and the thermal stability is poor, which seriously affects the scope of use of the product; and the product variety is single and the production cycle is long, which restricts the production capacity. improve

Method used

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  • Production method of petroleum resin

Examples

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Effect test

Embodiment 2

[0035] Embodiment 2 prepares petroleum resin with C9 fraction as raw material

[0036] according to figure 1 The process flow shown prepares petroleum resin.

[0037] 1) Pretreatment: Concentrate the C9 fraction (purchased from Lanzhou Petrochemical) directly in the rectification tower 2, the total content of styrene and indene in the concentrated C9 fraction is 60wt%, and the content of dicyclopentadiene is 1.5% ;

[0038] 2) Polymerization: Through preliminary experiments, it is determined that the weight percent concentration of the catalyst in the polymerization product is 1.8 to 2% as a standard, and the addition amount and reaction progress of the catalyst are controlled;

[0039] Then the C9 fraction after the above pretreatment is mixed with the mixed solvent of normal hexane and hexanaphthene in the raw material premixing tank 3 according to the ratio of 1:1 by weight, and sent into the polymerization reactor 4. 9 Stably and continuously add the catalyst aluminum t...

Embodiment 3

[0044] Embodiment 3 prepares petroleum resin with C5 fraction and C9 fraction as raw material

[0045] according to figure 1 The process flow shown prepares petroleum resin.

[0046] 1) Pretreatment: The pretreatment methods of the C5 fraction and the C9 fraction are the same as those in Examples 1 and 2 respectively. The content of pentadiene in the concentrated C5 fraction is 70 wt%, and the total content of styrene and indene in the concentrated C9 fraction is The content is 80wt%, and the two concentrates are mixed according to the weight ratio of the C5 fraction and the C9 fraction at 3:1;

[0047] 2) Polymerization: Through preliminary experiments, it is determined that the weight percent concentration of the catalyst in the polymerization product is 1 to 1.2% as a standard, and the amount of addition of the catalyst and the progress of the reaction are controlled;

[0048] Mix the above C5 fraction and C9 fraction mixed solution with the mixed solvent of toluene and x...

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PUM

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Abstract

The invention provides a production method of petroleum resin, mainly comprising the following steps: using C5 fraction and / or C9 fraction of petroleum hydrocarbon cracking as material, and producing the finished product of petroleum resin by pre-processing, polymerizing, post-processing and fine-forming, wherein the polymerization is as follows: mixing the material and solvent as a mixture, continuously conveying the mixture into a polymerization reactor while continuously adding the catalysis into the same, equably mixing the catalysis with the mixture, polymerizing for 1-5h and leading thepolymerization product out, and performing continuous catalysis polymerization reaction. The production method of petroleum resin uses continuous production process, thereby guaranteeing stable and consistent property indexes (chromaticity, softening point, and the like) of the product in the same type number; the preparation of materials can be flexibly changed, thereby enlarging the applicationrange and realizing industrialization.

Description

technical field [0001] The present invention relates to a kind of technology of producing petroleum resin, specifically, relate to a kind of petroleum resin production method of continuous operation. Background technique [0002] Petroleum resin has the advantages of low price, good miscibility, low melting point, water resistance, ethanol and chemical resistance, and can be widely used in various industries and fields such as rubber, adhesives, coatings, papermaking, and inks. Since the main raw material of petroleum resin is the C5 and C9 fractions of the by-products of petroleum hydrocarbon cracking to produce ethylene, the effective utilization of petroleum resin has become an important issue for the rational use of petroleum resources and the reduction of ethylene production costs. [0003] At present, the production process of petroleum resin in developed countries in the world is developing in the direction of continuous scale large-scale, variety diversification, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00
Inventor 龚腾勇王永刚丁生华崔戟平李涛
Owner 朗盈科技(北京)有限公司
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