Terpene resin hydrogenation method

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

Active Publication Date: 2021-02-09
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 reactor to 20°C, add 30% cyclohexane and resin synthesis catalyst to the reactor, add turpentine and the remaining cyclohexane dropwise to the reactor within 60 minutes of reaction, and complete Carry out 2 hours of insulation after dropping, add water to the reactor after the insulation 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; Among them, the resin Synthetic polymerization raw materials include the following raw materials in parts by weight: 600 parts of turpentine, 700 parts of cyclohexane, and 40 parts of catalyst; the resin synthesis catalyst includes the following components in parts by weight: 70 parts of aluminum trichloride, 10 parts of potassium sulfate, ...

Embodiment 2

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

[0030]1) Resin synthesis: Adjust the cooling water temperature of the reactor to 10°C, add 35% cyclohexane and resin synthesis catalyst to the reactor, add turpentine and the remaining cyclohexane dropwise to the reactor within 60 minutes of reaction, After the dropwise addition, keep warm for 1 hour. After the heat preservation is completed, add water to the reaction kettle, stir, stop stirring and let stand, drain the water in the lower part, and obtain the reaction liquid dehydrated by molecular sieve after dehydration with molecular sieve; wherein, resin synthesis 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 sul...

Embodiment 3

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

[0034] 1) Resin synthesis: adjust the cooling water temperature of the reactor to 10°C, add 30% cyclohexane and resin synthesis catalyst in the reactor, add turpentine and the rest of cyclohexane dropwise into the reactor within 45 minutes, and complete the dripping process. After the addition, keep warm for 2 hours. After the heat preservation is completed, add water to the reaction kettle, stir, stop stirring and let stand, drain the water in the lower part, and obtain the reaction liquid dehydrated by molecular sieve after dehydration with molecular sieve; among them, the resin synthesis polymerization raw material Comprising 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 parts of potassium sulfate, anhydrou...

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Abstract

The invention discloses a terpene resin hydrogenation method, and the method comprises: carrying out resin synthesis, and activating a hydrogenation catalyst in a first fixed bed hydrogenation reactorand a second fixed bed hydrogenation reactor; adding a cyclohexane solvent into the reactor at a speed of 0.1-5 ml/min, adjusting the hydrogen introduction speed to 300-400 ml/min, changing the cyclohexane solvent into the molecular sieve dehydrated reaction solution obtained in the step 1) after a liquid material exists in the product liquid separation tank, and carrying out a reaction to obtainhydrogenated terpene resin, thereby obtaining terpene hydrogenated resin. The method has the advantages that the production cost can be reduced, the reaction temperature is low, the reaction efficiency is improved, and the obtained hydrogenated terpene resin is stable in performance, not prone to discoloring and the like.

Description

technical field [0001] The invention belongs to the field of turpentine deep processing, in particular to a method for hydrogenating terpene resins. Background technique [0002] Terpene resin is an excellent tackifier and an important material for adhesives, which plays a key role in the performance and quality of adhesives. Because the terpene resin polymer contains double bonds, it will change color after absorbing oxygen, which will affect the appearance and quality of the product, and have a certain impact on heat resistance and weather resistance. At the same time, aluminum trichloride is generally used as a catalyst in the polymerization of terpene resins, 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 terpene resin, it needs to be hydrogenated, and remove i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F232/08C08F4/14C08F4/08C08F4/10C08F8/04B01J23/89B01J35/10
CPCC08F232/08C08F4/14C08F4/08C08F4/10C08F8/04B01J23/8993B01J35/1019B01J35/1038B01J35/1042B01J35/1047B01J35/1057B01J35/1061B01J35/1066B01J35/0013B01J35/006Y02P20/584
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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