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A kind of method of making coumarone resin

A technology of coumarone resin and stirred tank, which is applied in the field of coumarone resin production, can solve the problems of low economic value, long reaction time, high raw material cost, etc., and achieve the effect of good value-added effect, low processing cost and low cost

Active Publication Date: 2017-10-10
濮阳市联众兴业化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing coumarone resin production process has problems such as long reaction time and high cost of raw materials
[0003] After the ethylene "butter" breaks its stable water-in-oil state, the main component of the obtained oil phase is C8-C16 oxygen-containing unsaturated hydrocarbons, which can be directly used as fuel, but its economic value is low, and it can be used in new manufacturing after further treatment. Coumarone method to add value to processed ethylene "butter"

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0010] A method for preparing coumarone resin, comprising the following steps: the first step: 90% of ethylene "butter" after removing its stable water-in-oil state, 9% of waste white oil, and 1% of concentrated sulfuric acid Put it in a stirred tank reactor, the waste white oil is used as a stabilizer to prevent the sudden polymerization of ethylene "butter" after treatment, and the concentrated sulfuric acid is used as a neutralizer to adjust the acidity and alkalinity of the two raw materials; the second step: the stirred tank reactor The pressure in the reactor is maintained at 0.2MPa, and the temperature is 160°C; in the third step, the stirring speed of the stirred tank reactor reaches 30r / min, and the reaction is kept for 1 hour until the wire-like product stops, and the product meets the requirements.

specific Embodiment approach 2

[0011] Different from Embodiment 1, the pressure in the stirred tank reactor is maintained at 0.1MPa, and the temperature is 165°C; the third step is to make the stirring speed of the stirred tank reactor reach 40r / min, and keep the reaction for 1.2 hours to There is a wire-like product to stop, and the product meets the requirements.

specific Embodiment approach 3

[0012] Different from Embodiment 1, the pressure in the stirred tank reactor is maintained at 0.3MPa, and the temperature is 156°C; in the third step, the stirring speed of the stirred tank reactor reaches 20r / min, and the reaction is kept for 0.8 hours to There is a wire-like product to stop, and the product meets the requirements.

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Abstract

The invention relates to a method for preparing coumarone resin. A method for producing coumarone resin, the first step is to put 90% of ethylene "butter", 9% of waste white oil and 1% of concentrated sulfuric acid after removing its stable water-in-oil state in a stirring tank In the second step: the pressure in the stirred tank reactor is kept at 0.1-0.3Mpa, and the temperature is 156-165 ℃; The third step is to make the stirring speed of the stirred tank reactor reach 20-40r / min, keep the reaction for 0.8 hours-1.2 hours until the stringy product stops. The method of the invention has the characteristics of good effect, no by-products, low cost, high product value-added and product environmental protection.

Description

technical field [0001] The invention relates to a method for preparing coumarone resin. Background technique [0002] Coumarone is also called indene resin, benzofuran-indene resin, coumarone resin, oxyindene resin, commonly known as coal tar resin. Coumarone resin is obtained by catalyzed polymerization reaction of ethylene tar and carbon nine as raw materials. The appearance of the product is yellow, brown, and black block solid. It has good compatibility, water resistance, acid and alkali resistance, rust resistance and electrical properties. . The environmentally friendly material Coumarone petroleum resin is widely used in rubber, tires, V-belts, conveyor belts, paints, inks, waterproofing, hoses and other industries. Its unique performance has won the general attention and recognition of people in the rubber synthesis industry. The product market Very broad. However, the existing coumarone resin production process has problems such as long reaction time and high raw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F244/00
Inventor 鲁少飞张文魁张怀敏李争奎许振兴韩乐
Owner 濮阳市联众兴业化工有限公司
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