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Preparation method of light-colored rosin glyceride

A rosin glyceride and light-colored technology is applied in the field of preparation of light-colored rosin glycerides, and can solve the problems of dark rosin glycerides and inability to meet market demands and the like.

Inactive Publication Date: 2014-10-08
GUANGXI ZHONGCHANG RESIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the oxidation of rosin in the deep processing process, the color of the obtained rosin glyceride is too dark, which cannot meet the needs of the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation method of this light color rosin glyceride comprises the following steps:

[0015] A. Put the zeolite in a lead nitrate solution with a concentration of 0.1mol / L, soak for 1 day; then take it out, dry it at 80°C until the water content is 20%, then bake it at 300°C for 8 hours, and cool to obtain the substance A, standby;

[0016] B. Put 50kg rosin in the reaction kettle, under the condition of nitrogen as protective agent, adjust the intake of nitrogen to 5ml / min, heat it to melt completely, then add 1kg of substance A prepared in A step, stir evenly and heat up to 200°C, heat preservation reaction for 4 hours;

[0017] C. After step B, add 5kg glycerin, 0.5kg zinc oxide, 0.5kg sodium thiosulfate and 0.4kg calcium hypophosphite to the reaction kettle, stir evenly, and continue to keep warm for 1 hour at 200°C; then heat up to 270°C, heat preservation reaction for 4 hours;

[0018] D. After step C, vacuumize to remove low boilers, then lower the t...

Embodiment 2

[0021] The preparation method of this light color rosin glyceride comprises the following steps:

[0022] A. Put the zeolite in a lead nitrate solution with a concentration of 0.1mol / L, soak it for 2 days; then take it out, dry it at 95°C until the water content is 30%, then roast it at 450°C for 6 hours, and cool it to obtain the substance A, standby;

[0023] B. 60kg rosin is put into the reaction kettle, under the condition of nitrogen as protective agent, the air intake of nitrogen is adjusted to 8ml / min, heated to make it melt completely, then add 2kg of substance A prepared in A step, stir evenly and heat up to 220°C, keep warm for 1 hour;

[0024] C. After the B step, add 8kg glycerol, 0.8kg zinc oxide, 0.8kg sodium thiosulfate and 0.6kg calcium hypophosphite in the reaction kettle, stir evenly, continue at 220 ℃, insulation reaction 0.5 hour; Then heat up to 280°C, heat preservation reaction for 2 hours;

[0025] D. After step C, vacuumize to remove low boilers,...

Embodiment 3

[0028] The preparation method of this light color rosin glyceride comprises the following steps:

[0029] A. Put the zeolite in a lead nitrate solution with a concentration of 0.1mol / L, soak it for 1.5 days; then take it out, dry it at 90°C until the water content is 25%, then roast it at 400°C for 7 hours, and cool it to get the substance A, standby;

[0030] B. Put 55kg of rosin into the reaction kettle, under the condition of nitrogen as a protective agent, adjust the intake of nitrogen to 7ml / min, heat to make it completely melted, then add 1.5kg of substance A prepared in step A, stir and heat up evenly To 210°C, keep warm for 3 hours;

[0031] C. After step B, add 6kg of glycerin, 0.6kg of zinc oxide, 0.6kg of sodium thiosulfate and 0.5kg of calcium hypophosphite into the reaction kettle, stir evenly, and continue the heat preservation reaction at 210°C for 0.5 hours; then heat up to 275°C, heat preservation reaction for 3 hours;

[0032] D. After step C, vacuumiz...

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Abstract

The invention discloses a preparation method of light-colored rosin glyceride, belonging to the technical field of deep processing of rosin. The preparation method comprises the following steps: putting zeolite into a lead nitrate solution, soaking, then taking out, firstly baking until the water content is 20-30%, then roasting at 300-450 DEG C, and cooling to obtain a substance A for later use; putting rosin into a reaction kettle, controlling the air intake quantity of nitrogen, heating and melting, adding the substance A, rising temperature and then performing heat-preservation reaction 1; adding glycerin, zinc oxide, sodium thiosulfate and calcium hypophosphite, firstly performing heat-preservation reaction at 200-220 DEG C, then rising the temperature to 270-280 DEG C and performing heat-preservation reaction; and performing vacuum pumping to remove low-boiling-point substances, cooling, and discharging material to obtain the light-colored rosin glyceride. According to the preparation method disclosed by the invention, oxidation of rosin is furthest reduced so as to prepare the light-colored rosin glyceride with very light colors.

Description

technical field [0001] The invention belongs to the technical field of rosin deep processing, and in particular relates to a preparation method of light-colored rosin glyceride. Background technique [0002] Rosin is a non-volatile natural resin obtained from pine resin as raw material through different processing methods. Rosin is an important chemical raw material, widely used in soap, paper, paint, rubber and other industries. In addition, rosin can also be made into rosin glyceride through deep processing. Compared with rosin, its acid value is significantly reduced, brittleness and stickiness are reduced, and weather resistance is improved. But, because rosin is oxidized in deep processing process, the color that causes the rosin glyceride of making is too dark, can't reach the demand of market. Contents of the invention [0003] The technical problem solved by the present invention is to provide a preparation method of light-colored rosin glyceride, and the rosin g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/04
Inventor 黄桂彬
Owner GUANGXI ZHONGCHANG RESIN
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