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A kind of environment-friendly production process of terpene resin

A technology of terpene resin and production process, which is applied in the field of environmental protection production process of terpene resin, can solve the problems of acid waste water, catalyst waste, high treatment cost, etc., and achieve the effect of reducing usage, catalyst amount and treatment cost

Active Publication Date: 2018-06-19
广东星光脂胶科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned technical problems, the present invention discloses an environmentally friendly production process for terpene resins to solve the problems of waste of catalysts in the production process of existing terpene resins, as well as the generation of a large amount of acidic wastewater and high treatment costs. Designed a terpene resin production process to realize the multiple utilization of aluminum trichloride catalyst, recycle most of the aluminum trichloride, reduce the amount of catalyst used in production, reduce the cost of raw materials, and greatly reduce the pressure of sewage treatment in production and cost, making the production process more environmentally friendly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] first round of production

[0028] A: Open the toluene feed valve, put 1 cubic meter of toluene liquid into the reaction tank, open the circulating cold liquid control valve, the circulating cold liquid enters the reaction tank jacket and internal coil to cool the reaction tank, and reduce the temperature of the toluene down to -5°C;

[0029] B: Use 0.1 cubic meters of toluene to mix with 60kg aluminum trichloride to form a suspension, prepare 1.5 cubic meters of turpentine, open the turpentine feed valve and the catalyst feed valve, and use the suspension and turpentine simultaneously Add the raw materials dropwise evenly into the reaction tank. The time for adding the raw materials lasts for 4 hours. The jacket of the reaction tank and the internal coil continue to refrigerate. Turn on the spiral agitator in the middle and rotate clockwise to continuously lift up the powdery aluminum trichloride and mix it evenly for reaction;

[0030] C: After the polymerization re...

Embodiment 2

[0043] first round of production

[0044] A: Open the toluene feed valve, put 1 cubic meter of toluene liquid into the reaction tank, open the circulating cold liquid control valve, the circulating cold liquid enters the reaction tank jacket and internal coil to cool the reaction tank, and reduce the temperature of the toluene down to -3°C;

[0045] B: Prepare 1.4 cubic meters of turpentine, open the turpentine feed valve, and evenly add turpentine dropwise to the reaction tank. The raw material addition time is kept for 4 hours. Put it into the reaction tank, put in a total of 70kg of aluminum trichloride, add 10% each time, the time interval is the same, the jacket of the reaction tank and the internal coil continue to refrigerate, and continue to react for a period of time after the addition of raw materials, lasting 5h , the reaction temperature is controlled at 4°C, and the screw agitator is turned on during the whole reaction process to rotate clockwise, and the powdere...

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Abstract

The invention discloses an environment-friendly production process for terpene resin. The production process includes: adding toluene into a reaction tank, and reducing the temperature of the toluene to -5-0°C; adding turpentine and aluminum trichloride into the toluene, raw material The addition process lasts for 4 to 5 hours, and the reaction is continued for a period of time after the addition of the raw materials, which lasts for 4 to 5 hours; after the polymerization reaction is completed, the semi-finished terpene resin is filtered through the filter screen at the bottom of the reaction tank. The sieve holes are long strips, and the gap between the sieve holes is 0.05-0.3mm. The semi-finished terpene resin enters the next process through the sieve holes, and the aluminum trichloride remains in the reaction tank and enters the second round of production and use, and is reused; The filtered semi-finished terpene resin is washed with water; the semi-finished terpene resin is distilled to remove impurities to obtain the finished terpene resin. The present invention aims to solve the problems of waste of catalysts in the production process of the existing terpene resin, the generation of a large amount of acidic waste water, and the high treatment cost.

Description

technical field [0001] The invention belongs to the technical field of terpene resin production, and in particular relates to an environment-friendly production process of terpene resin. Background technique [0002] Terpene resins are some thermoplastic block copolymers with light color, low odor, high hardness, high adhesion, good oxidation resistance and thermal stability, good compatibility and solubility, etc., especially EVA series SIS series, SBS series It has excellent compatibility, weather resistance and viscosifying effect among other hot melts. In industry, toluene or xylene is used as solvent, α-pinene and β-pinene in turpentine oil or tall oil are used as polymer monomers, and cationic polymerization is carried out in a reactor at low temperature to obtain terpene resin toluene solution After high temperature distillation to remove solvent toluene, unpolymerized reaction monomers and low molecular weight polymers, solid terpene resin products can be obtained a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F32/08C08F4/14C08F6/00
Inventor 张乃银肖珍仔杜光全张沃瑞陈睿彬
Owner 广东星光脂胶科技股份有限公司
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