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A kind of method of terpene resin hydrogenation

A terpene resin and resin synthesis technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of inability to use high softening point resins, catalyst loss, Problems such as multiple softening points can achieve the effects of saving production heat sources, reducing hydrogenation pressure and temperature, and reducing high temperature time

Active Publication Date: 2022-06-07
PUYANG XINYU PETROCHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved in the present invention is to provide a method for hydrogenation of terpene resins, so as to solve the problem that the hydrogenation process in the prior art will lose more softening points and cannot be used in the production of resins with high softening points; fluidized bed reaction reactor or tank reactor, the technical problem of serious catalyst loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: a kind of method of terpene resin hydrogenation, comprises the steps:

[0026] 1) Resin synthesis: adjust the cooling water temperature of the reaction kettle to 20°C, add 30% cyclohexane and resin synthesis catalyst to the reaction kettle, and add turpentine and the remaining cyclohexane dropwise to the reaction kettle within 60 minutes of reaction to complete After dripping, carry out 2 hours of heat preservation, add water to the reaction kettle after the heat preservation is completed, stir, stop stirring and let stand, drain the water in the lower part, and obtain the reaction solution of molecular sieve dehydration after dehydration with 5 micron molecular sieve; The synthetic polymerization raw materials include the following raw materials by weight: 600 parts of turpentine, 700 parts of cyclohexane, and 40 parts of catalyst; the resin synthesis catalyst includes the following components by weight: 70 parts of aluminum trichloride, 10 parts of potass...

Embodiment 2

[0029] Embodiment 2: a kind of method for terpene resin hydrogenation, comprises the steps:

[0030]1) Resin synthesis: adjust the cooling water temperature of the reaction kettle to 10°C, add 35% cyclohexane and resin synthesis catalyst to the reaction kettle, and add turpentine and the remaining part of cyclohexane dropwise to the reaction kettle within 60 minutes of the reaction, After the dripping is completed, heat preservation for 1 hour is carried out. After the heat preservation is completed, water is added to the reaction kettle, and stirring is stopped, and the stirring is stopped to stand, and the water in the lower part is drained. The polymerization raw materials include the following raw materials by weight: 500 parts of turpentine, 400 parts of cyclohexane, and 30 parts of catalyst; the resin synthesis catalyst includes the following components by weight: 50 parts of aluminum trichloride, 20 parts of potassium sulfate, anhydrous 20 parts of copper sulfate, 10 pa...

Embodiment 3

[0033] Embodiment 3: a kind of method for terpene resin hydrogenation, comprises the steps:

[0034] 1) Resin synthesis: adjust the temperature of the cooling water in the reaction kettle to 10°C, add 30% cyclohexane and resin synthesis catalyst in the reaction kettle, and drop turpentine and the remaining part of cyclohexane into the reaction kettle within 45 minutes to complete the dripping. After adding, carry out heat preservation for 2 hours, add water to the reaction kettle after the heat preservation is completed, stir, stop stirring and let stand, drain the water in the lower part, and obtain the reaction solution of molecular sieve dehydration after dehydration with molecular sieve; wherein, resin synthesis polymerization raw material Including the following raw materials by weight: 600 parts of turpentine, 700 parts of cyclohexane, and 40 parts of catalyst; the resin synthesis catalyst includes the following components by weight: 60 parts of aluminum trichloride, 20 p...

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PUM

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Abstract

The invention discloses a method for hydrogenating terpene resin. In the invention, the resin is synthesized first, and the hydrogenation catalyst is activated in the first fixed-bed hydrogenation reactor and the second fixed-bed hydrogenation reactor; The hexane solvent enters the reactor at a rate of 0.1-5 ml / min, and at the same time adjusts the hydrogen gas feed rate to 300-400 ml / min. The obtained molecular sieve dehydrated reaction solution is reacted to obtain a hydrogenated hydrogenated terpene resin to obtain a terpene hydrogenated resin. The invention can reduce the production cost, has low reaction temperature, improves the reaction efficiency, has the advantages of stable performance of the obtained hydrogenated terpene resin, is not easy to change color, and the like.

Description

technical field [0001] The invention belongs to the field of deep processing of turpentine, in particular to a method for hydrogenating a terpene resin. Background technique [0002] Terpene resin is an excellent tackifier, an important material for adhesives, and plays a key role in the performance and quality of adhesives. Since the terpene resin polymer contains double bonds, it will change color after oxygen absorption, which will affect the appearance and quality of the product, and also have a certain impact on heat resistance and weather resistance. At the same time, in the polymerization of terpene resin, aluminum trichloride is generally used as a catalyst, which is easy to introduce chloride ions into the resin, resulting in a decrease in the quality of the resin. In order to further improve the quality of the terpene resin, remove impurities and enhance the stability of the terpene resin. To reduce the color of the terpene resin, it is necessary to hydrogenate it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F232/08C08F4/14C08F4/08C08F4/10C08F8/04B01J23/89B01J35/10
CPCC08F232/08C08F4/14C08F4/08C08F4/10C08F8/04B01J23/8993B01J35/393B01J35/23B01J35/615B01J35/643B01J35/638B01J35/651B01J35/635B01J35/633B01J35/647Y02P20/584
Inventor 李争奎胡道轲裴存章张鹏超赵艳明高鹏
Owner PUYANG XINYU PETROCHEM IND
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