Terpene resin environment-friendly production technology

A terpene resin and production process technology, applied in the field of environmental protection production technology of terpene resin, can solve the problems of catalyst waste, production of acidic waste water, and high treatment costs, and achieve the effects of reducing the amount of catalyst, reducing the amount of use, and reducing the treatment cost.

Active Publication Date: 2015-06-10
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 a terpene resin environment-friendly production technology. The production technology includes the steps that methylbenzene is added into a retort, and the temperature of the methylbenzene is reduced to -5-0 DEG C; turpentine and aluminum chloride are added into the methylbenzene, the raw material adding process lasts for 4-5 hours, and reaction is kept for a certain period of time after raw materials are added and lasts for 4-5 hours; after polymerization reaction is completed, semi-finished terpene resin can be filtered through a filtering screen plate at the bottom of the retort, screen meshes in the filtering screen plate are of a long strip shape, the distance between the screen meshes ranges from 0.05 mm to 0.3 mm, the semi-finished terpene resin enters in the next step of process through the screen meshes, and aluminum chloride is left in the retort for being used for secondary production and is repeatedly used; the filtered semi-finished terpene resin is washed through water; distillation and impurity removal are carried out on the semi-finished terpene resin to obtain finished terpene resin. The technology aims to solve the problems that catalysts are wasted in an existing terpene resin production process, a lot of acid waste water is generated and treatment cost is high.

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 Applications(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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