Method for preparing high-viscosity heat-resistant resin with ethylene tar as raw material

A technology of ethylene tar and heat-resistant resin, which is applied in the direction of tar processing and adhesives through distillation, which can solve the problems of weak market competition and high production costs, and achieve good bonding performance and good heat resistance.

Inactive Publication Date: 2012-06-20
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

98% of my country's ethylene is made of naphtha. Compared with foreign companies that mainly us

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0011] Example 1

[0012] Take a certain amount of ethylene tar in a distillation flask, slowly raise the temperature to 250°C, and distill under normal pressure to remove the fractions before 250°C to obtain ethylene heavy tar with a mass yield of 77.24%. Add ethylene heavy tar and terephthalic dimethanol with a mass ratio of 5:1 to the reactor, and add 5% of the total mass of p-toluenesulfonic acid. Under the protection of nitrogen, the temperature is raised to 140°C and reacted for 3h to obtain a resin The product, the resin mass yield is 94.06%, the softening point is 117°C, and the carbon residue rate at 500°C in the air is 35.43% (mass ratio), indicating that it has good heat resistance. Its bonding performance is expressed by the mass content of toluene-insoluble quinoline solubles (β resin), in which the mass content of toluene insolubles is 18.25%, the mass content of quinoline insolubles is 5.83%, and the mass content of β resin is 12.42%. The binding performance is eq...

Example Embodiment

[0013] Example 2

[0014] Take a certain amount of ethylene tar in a distillation flask, slowly raise the temperature to 300°C, and distill under normal pressure to remove the fractions before 300°C to obtain ethylene heavy tar with a mass yield of 62.59%. Add ethylene heavy tar and terephthalic methanol with a mass ratio of 5:1 to the reactor, and add 5% of the total mass of p-toluenesulfonic acid, and heat to 140℃ under the protection of nitrogen, and react for 2h to obtain resin The product, the resin mass yield is 91.13%, the softening point is 114°C, and the carbon residue rate at 500°C in the air is 40.70% (mass ratio), indicating that it has good heat resistance. The mass content of toluene insoluble matter is 32.04%, the mass content of quinoline insoluble matter is 10.93%, and the mass content of β resin is 21.11%. Its adhesiveness is equivalent to the first grade electrode pitch used as a binder (GB8730-88: Toluene insoluble matter 28-34, quinoline insoluble matter, 8-...

Example Embodiment

[0015] Example 3

[0016] The preparation of ethylene heavy tar is the same as in Example 1. Add ethylene heavy tar and benzaldehyde with a mass ratio of 3:1 to the reactor, and add 5% of the total mass of p-toluenesulfonic acid, and heat to 160°C under the protection of nitrogen. After reacting for 3 hours, a resin product was obtained. The resin mass yield was 97.23%, the softening point was 96°C, and the carbon residue rate at 500°C in the air was 35.60% (weight ratio), indicating good heat resistance. The mass content of toluene insoluble matter is 25.44%, the mass content of quinoline insoluble matter is 9.63%, and the mass content of β resin is 15.81%, indicating that it has good bonding properties.

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Abstract

A method for preparing high-viscosity heat-resistant resin with ethylene as raw material belongs to the technical field of novel material preparation and the technical field of carbon materials and petrochemical industry intersection. The method is characterized in that the ethylene tar serves as raw material, ethylene repeated tar through distilling and cutting, and heat resistant resin with good viscosity and high belta resin content is obtained through reaction of low temperature catalyst crosslinking technology and cross-linking agent under the effect of acid catalyst. The method is suitable for all ethylene tar and has the advantages that cheap ethylene tar can be converted into high-viscosity heat resistant resin through the catalyst crosslinking reaction, and additional value of the ethylene tar by-product can be improved.

Description

technical field [0001] The invention relates to a method for preparing high-bonding heat-resistant resin by using ethylene tar as raw material. It uses ethylene tar as the initial raw material, and the ethylene heavy tar obtained through atmospheric distillation reacts with a cross-linking agent under the action of a catalyst to obtain a high-bonding heat-resistant resin. Background technique [0002] In recent years, my country's ethylene industry has developed rapidly. In 2005, the ethylene production capacity was 7.859 million tons / year, and in 2010 it reached 14.949 million tons / year. 98% of my country's ethylene is naphtha as raw material. Compared with foreign companies that mainly use ethane as raw material, the production cost is high and the market competition is weak. Ethylene tar is a by-product obtained by steam cracking of cracked raw materials in the process of ethylene production. The amount of ethylene tar produced is 10-20% of the quality of cracked raw mat...

Claims

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Application Information

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IPC IPC(8): C08G61/02C10C1/04C09J165/00
Inventor 吴明铂李士斌郭宁石阳阳王玉伟郑经堂滕传亮谭明慧
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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