Method for preparing colorless hydrogenated rosin ester resin

A technology of hydrogenated rosin ester and manufacturing method, which is applied in the field of deep processing of rosin and the manufacture of rosin ester resin, which can solve the problems of high iodine value and insufficient light color of the product, and achieve the effects of short hydrogenation time, expanding varieties and prolonging service life

Active Publication Date: 2011-04-06
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,

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] Embodiment 1: make colorless hydrogenated rosin glyceride resin with refined rosin glyceride.

[0058] Hydrogenation by solvent method: mix the refined rosin glyceride and pinane in a certain proportion, melt at 80-120°C, and make a refined rosin glyceride solution with a concentration of 40-70%, and use a flow rate of 200-800L / h The amount of feed enters the hydrogenation system, and is preheated to 150-200 ° C to mix with hydrogen, and then enters the fixed-bed reactor equipped with a palladium loading rate of 2-5% and a dosage of 300-400kg per batch of palladium-carbon Inside, the temperature of each reactor is controlled at 180-260°C, the temperature difference of each 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 hydrogen is above 99.9%, and the separated hydrogen is recycled by the hydrogen cycler. When the carbon dioxide contained in the hydrogen is la...

Embodiment 2

[0060] Embodiment 2: make colorless hydrogenated rosin pentaerythritol ester resin with refined rosin pentaerythritol ester.

[0061] Hydrogenation by solvent method: add the refined rosin pentaerythritol ester to the solvent pinane, melt it at 80-120°C, and make a refined rosin pentaerythritol ester solution with a concentration of 40-70%, and feed it with a flow rate of 200-800L / h The amount enters the hydrogenation system, and is preheated to 150-200 ° C to mix with hydrogen, and then enters the fixed-bed reactor equipped with a palladium-carrying rate of 2-5% and an amount of 300-400kg palladium-carbon per batch. The temperature of each reactor is controlled at 180-260°C, the temperature difference of each 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 hydrogen is above 99.9%, and the separated hydrogen is recycled by the hydrogen cycler. When the carbon dioxide co...

Embodiment 3

[0063] Embodiment 3: make colorless hydrogenated rosin glyceride with refined disproportionated rosin glyceride.

[0064] Hydrogenation by solvent method: Add the refined disproportionated rosin glyceride and the solvent pinane to the melting pot, melt at 80-120°C, and prepare a refined disproportionated rosin glyceride solution with a concentration of 40-70%, with a flow rate of 200- The feed rate of 800L / h enters the hydrogenation system, and is preheated to 150-200°C to mix with hydrogen, and then enters into the plant with a palladium loading rate of 2-5% and a dosage of 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 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 hydrogen is above 99.9%, and the separated hydrogen is recycled by the hydrogen cycler. Whe...

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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 rosin ester resin, in particular to a method for manufacturing colorless hydrogenated rosin ester resin, which belongs to the rosin deep processing technology. Background technique [0002] Rosin resin is a kind of tackifying resin, and tackifying resin is an important material for forming adhesives, which plays a key role in the performance and quality of adhesives. In addition, the tackifying resin is also a film-forming agent for coatings and a linking agent for inks. With the development of the colorless adhesive process, the popularity of light-colored decorations and the wide application of colored inks, the quality requirements for rosin esters are also increasing, and the color of the product is one of the important indicators. Rosin esters are also from ordinary The type is developing towards high-grade, colorless, odorless, and colorless resin with excellent thermal stability, especially th...

Claims

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Application Information

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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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