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Method for preparing colorless hydrogenated rosin ester resin

A technology of hydrogenated rosin ester and manufacturing method, which is applied in the manufacture of rosin ester resin and deep processing of rosin, which can solve the problems of insufficient light color and high iodine value of the product, and achieve the effects of short hydrogenation time, low pressure and shortening the quality gap

Active Publication Date: 2013-05-08
广西梧州日成林产化工股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the problems of insufficient light color and high iodine value of the products obtained by the current process, and is expected to replace some applications of colorless hydrogenated petroleum resin products in high-end adhesive products

Method used

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  • Method for preparing colorless hydrogenated rosin ester resin
  • Method for preparing colorless hydrogenated rosin ester resin
  • Method for preparing colorless hydrogenated rosin ester resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Example 1: A colorless hydrogenated rosin glyceride resin was prepared from refined rosin glyceride.

[0058] Solvent hydrogenation: mix the refined rosin glyceride and pinane in a certain proportion, dissolve at 80-120℃, and prepare a refined rosin glyceride solution with a concentration of 40-70%, with a flow rate of 200-800L / h The feed amount enters the hydrogenation system, and is preheated to 150-200°C and mixed with hydrogen, then enters a fixed bed reactor that has been equipped with a palladium loading rate of 2 to 5%, and an amount of 300-400kg palladium-carbon per batch Inside, the temperature of each reactor is controlled at 180-260°C, the temperature difference of each stage of the reactor is less than 10°C, showing an increasing distribution, the hydrogen pressure is between 5.0-15MPa, and the reaction time is 0.5-2 hours. The purity of the hydrogen is above 99.9%, and the separated hydrogen is recycled by the hydrogen circulation machine. When the carbon diox...

Embodiment 2

[0060] Example 2: Using refined rosin pentaerythritol ester to prepare colorless hydrogenated rosin pentaerythritol ester resin.

[0061] Solvent hydrogenation: add refined rosin pentaerythritol ester, add solvent pinane, dissolve at 80-120℃, prepare a refined rosin pentaerythritol ester solution with a concentration of 40-70%, and feed at a flow rate of 200-800L / h The amount enters the hydrogenation system, and is preheated to 150-200°C and mixed with hydrogen, then enters the fixed bed reactor that has been equipped with a palladium loading rate of 2-5% and a dosage of 300-400kg palladium-carbon per batch. Control the temperature of each reactor at 180-260°C, the temperature difference of each stage of the reactor is less than 10°C, showing an increasing distribution, the hydrogen pressure is between 5.0-15MPa, and the reaction time is 2-4 hours. The purity of the hydrogen is above 99.9%, and the separated hydrogen is recycled by the hydrogen circulation machine. When the carbo...

Embodiment 3

[0063] Example 3: Using refined disproportionated glyceryl rosin to prepare colorless hydrogenated rosin glyceride.

[0064] Solvent hydrogenation: add the refined disproportionated rosin glyceride and the solvent pinane to the melting pot, melt at 80-120℃, and prepare a refined disproportionated rosin glyceride solution with a concentration of 40-70% at a flow rate of 200- The feed rate of 800L / h enters the hydrogenation system, and it is preheated to 150-200℃ and mixed with hydrogen, and then enters the palladium loading rate of 2-5%, and the dosage is 300-400kg palladium-carbon per batch. In the fixed bed reactor, the temperature of each reactor is controlled at 180-260°C, the temperature difference of each stage of the reactor is less than 10°C, in an increasing distribution, the hydrogen pressure is between 5.0-15MPa, and the reaction time is 0.5-2 hours. The purity of the hydrogen is above 99.9%, and the separated hydrogen is recycled by the hydrogen circulation machine. Wh...

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Abstract

The invention relates to a method for preparing colorless hydrogenated rosin ester resin. Rosin ester obtained by esterifying rosin purified through distillation is used as a raw material, catalytic hydrogenation is carried out under the action of a solvent and a high activity catalyst, the solvent is separated through distillation, and the colorless hydrogenated rosin ester resin is obtained. The product comprises the following key indexes of: no more than 100 of Hasson color number, no more than 20 mg / g of acid value, 80 to 110 DEG C of softening point and 0 to 15 gI2 / 100g of iodine value. The product can substitute a colorless hydrogenated petroleum resin product to be applied to the high-end adhesive. The method for preparing the colorless hydrogenated rosin ester resin is simple and easy, and the prepared product has the advantages of shadow color, lower iodine value, higher stability and lower preparation cost when being compared with the traditional products.

Description

Technical field [0001] The invention relates to a method for manufacturing a rosin ester resin, in particular to a method for manufacturing a colorless hydrogenated rosin ester resin, which belongs to the deep processing technology of rosin. Background technique [0002] Rosin resin is a kind of tackifying resin, and the tackifying resin is an important material for the adhesive, which plays a key role in the performance and quality of the adhesive. In addition, the tackifying resin is also a film-forming agent for coatings and a linking agent for inks. With the development of adhesive technology towards colorlessness, the popularity of light-colored decorations and the wide application of colored inks, the quality requirements for rosin esters have also been continuously improved, and the color of the product is one of the important indicators. The type is developing towards high-grade, colorless, odorless, and colorless resins with excellent thermal stability. Especially the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09F1/04
Inventor 李前林克忠侯文彪陈少芳江文夺叶江青孔令森黄斌冉启斌
Owner 广西梧州日成林产化工股份有限公司
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