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Method for preparing high-softening-point rosin glyceride

A technology of rosin glyceride and high softening point, which is applied in the chemical modification of natural resins, etc., to achieve low acid value, good quality, and low acid value of the product

Active Publication Date: 2015-11-11
广西贺州华川林产科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for preparing rosin glycerides with a high softening point, which can solve the problem of preparing odorless rosin glycerides with a softening point above 115°C

Method used

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  • Method for preparing high-softening-point rosin glyceride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of this high softening point rosin glyceride comprises the following steps:

[0021] A, the rosin of 100 weight parts, the maleic acid of 20 weight parts and the graphite of 0.2 weight part are put into reactor and mix;

[0022] B. Introduce N into the reaction kettle for protection reaction 2 , and reacted at 200°C for 120 minutes to obtain a modified rosin with a high softening point;

[0023] C, add the ZSM-5 molecular sieve catalyst of the load iron element of 3 weight parts and the glycerin of 24 weight parts again in reactor;

[0024] D, raising the reaction temperature to 240°C, and reacting at constant temperature for 7 hours;

[0025] E. stop N 2 Protection, after vacuum distillation for 20min, turn on N 2 protection, lower the temperature to below 220°C, and discharge the product to obtain rosin glyceride with high softening point.

Embodiment 2

[0027] The preparation method of this high softening point rosin glyceride comprises the following steps:

[0028] A, the rosin of 100 weight parts, the maleic acid of 20 weight parts and the graphite of 0.2 weight part are put into reactor and mix;

[0029] B. Introduce N into the reaction kettle for protection reaction 2 , react at 230°C for 45 minutes to obtain high softening point rosin;

[0030] C, add the ZSM-5 molecular sieve catalyst of the load iron element of 3 weight parts and the glycerin of 24 weight parts again in reactor;

[0031] D, raising the reaction temperature to 230°C, and reacting at constant temperature for 9 hours;

[0032] E. stop N 2 protection, after vacuum distillation for 30 minutes, turn on N 2 protection, lower the temperature to below 220°C, and discharge the product to obtain rosin glyceride with high softening point.

Embodiment 3

[0034] The preparation method of this high softening point rosin glyceride comprises the following steps:

[0035] A, the rosin of 100 parts by weight, the maleic acid of 30 parts by weight and the graphite of 0.2 parts by weight are put into reactor and mix homogeneously;

[0036] B. Introduce N into the reaction kettle for protection reaction 2 , react at 200°C for 120 minutes to obtain high softening point rosin;

[0037] C, add the ZSM-5 molecular sieve catalyst of the loaded iron element of 3 weight parts and the glycerol of 39 weight parts again in reactor;

[0038] D, raising the reaction temperature to 240°C, and reacting at constant temperature for 7 hours;

[0039] E. stop N 2 Protection, after vacuum distillation for 20min, turn on N 2 protection, lower the temperature to below 220°C, and discharge the product to obtain rosin glyceride with high softening point.

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Abstract

The invention discloses a method for preparing high-softening-point rosin glyceride, and relates to the technical field of forest product chemical rosin deep processing. According to the method, esterification synthesis of high-softening-point modified rosin with the softening point of 145-155 DEG C and glycerol is utilized to prepare high-softening-point rosin glyceride with the softening point of 115-120 DEG C. The problem that rosin glyceride which is 115 DEG C or above in softening point and free of foreign flavor cannot be prepared can be solved, the acid value of the prepared high-softening-point rosin glyceride is lowered to be 4-6, the Gardner value, measured by a Fe-Co method, of the color and luster is smaller than or equal to 8, and the quality is good; the reaction process is simple and easy to control, the reaction efficiency is high, and no by-product is generated.

Description

technical field [0001] The invention relates to the technical field of deep processing of rosin in forest product chemical industry, in particular to a preparation method of rosin glyceride with high softening point. Background technique [0002] Gum base is a consumption variety produced in the development of modern society. It is divided into two categories: chewing gum and bubble gum in terms of chewing effect. Gum base is one of the main components of gummies, generally accounting for 20% to 30%. The gum base materials of gummies mainly include natural gums (Gum Gum; Balata Gum, etc.), synthetic rubber (styrene-butadiene rubber; butyl rubber, etc.), edible-grade rosin glycerides, food-grade hydrogenated rosin glycerides, food-grade polymerized rosin glycerides, and food-grade terpene resins. In recent years, due to factors such as cost and environmental protection, rubber-based materials such as natural gums, synthetic rubbers, and food-grade terpene resins are rapidly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/04
Inventor 黄宇平车乾池王尧陈键泉陈伟强岑潮锋
Owner 广西贺州华川林产科技有限公司
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