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Preparation method of light-color hydrogenated rosin methyl ester

A hydrogenated rosin methyl ester and light-colored technology is applied in the field of preparation of light-colored hydrogenated rosin methyl ester, can solve problems such as the dark color of hydrogenated rosin methyl ester, and achieve the effects of low production cost, light color and high purity

Inactive Publication Date: 2016-10-12
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

[0004] The purpose of this invention is to provide a kind of preparation method of light-colored hydrogenated rosin methyl ester, the preparation method of this light-colored hydrogenated rosin methyl ester can solve the problem that the color of hydrogenated rosin methyl ester is darker

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The preparation method of the light-colored hydrogenated rosin methyl ester of this embodiment is: put 2500 grams of hydrogenated rosin methyl ester into a 5L rotary bottle, connect the receiving bottle and check with a vacuum to confirm that the airtightness of the system is intact. Vacuumize the distillation system to 100Pa, check and confirm that the airtightness of the system is intact, start the heating distillation, raise the temperature from room temperature to 210 ℃ ~ 220 ℃, keep the distillation for 1.5 hours, and stop the distillation. The distillate is the light-colored hydrogenated rosin methyl ester product .

[0014] The product in this example is a light yellow transparent viscous liquid with an acid value of 2.0mg / g, a color of 1- (iron-cobalt color), and a viscosity (25°C) of 3950mp.s.

Embodiment 2

[0016] The preparation method of the light-colored hydrogenated rosin methyl ester of this embodiment is: put 2500 grams of hydrogenated rosin methyl ester into a 5L rotary bottle, connect the receiving bottle and check with a vacuum to confirm that the airtightness of the system is intact. Vacuumize the distillation system to 50Pa, check and confirm that the airtightness of the system is intact, start heating distillation, raise the temperature from room temperature to 210°C-220°C, keep the distillation for 1 hour, stop distillation, and the fraction is the product.

[0017] The product in this example is a light yellow transparent viscous liquid with an acid value of 1.6 mg / g, a color of 100 (Hasson color number), and a viscosity (25°C) of 3550 mp.s.

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Abstract

The invention discloses a preparation method of light-colored hydrogenated rosin methyl ester, and relates to the technical field of rosin deep processing. The method of the present invention is as follows: add hydrogenated rosin methyl ester into the distillation device, check the air tightness of the device, evacuate to 50 Pa to 200 Pa, heat up to 210°C to 220°C, heat-preserve and distill for 1 hour to 1.5 hours, and collect fractions , to obtain the product of the present invention. The method of the invention can remove rosin resin acid monomers and neutral substances not involved in esterification in the hydrogenated rosin methyl ester, and the obtained product has light color, low acid value, high purity and high viscosity.

Description

technical field [0001] The invention relates to the technical field of rosin deep processing, in particular to a method for preparing light-colored hydrogenated rosin methyl ester. Background technique [0002] Hydrogenated rosin methyl ester is a deep-processed product of rosin that is liquid at room temperature, and is produced by esterification reaction of hydrogenated rosin and methanol under certain temperature and pressure conditions. Due to its excellent application performance, hydrogenated rosin methyl ester can be used as a surfactant and tackifier in plastics, rubber, coatings and adhesive industries. [0003] With the further development of science and technology, the application field of hydrogenated rosin methyl ester has also been continuously expanded: hydrogenated rosin methyl ester can be used as a fragrance retention agent in the production of essence, perfume and depilatory cream, as an anti-solvent and anti-chemical coating for photosensitive materials ...

Claims

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Application Information

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IPC IPC(8): C09F1/02
CPCC09F1/02
Inventor 侯文彪林克忠江文夺吴嘉超陈敏琴黄常活唐红玉
Owner 广西梧州日成林产化工股份有限公司
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