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Reduced-color reagent for preparing light-color rosin

A technology of light coloring agent and rosin, which is applied in the field of light coloring agent for preparing light-colored rosin, which can solve the problems that rosin is too dark and cannot meet market demand, and achieve the effect of reducing oxidation reaction

Inactive Publication Date: 2014-12-10
GUANGXI ZHONGCHANG RESIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is to provide a light-coloring agent for preparing light-colored rosin, and the light-coloring agent is used in the process of preparing rosin, which can solve the problem that the color of the obtained product rosin is too dark and cannot meet the market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The light coloring agent for preparing light-colored rosin is prepared from the following raw materials: 5 g of sodium thiosulfate crystals, 10 g of hypophosphorous acid crystals, and 55 g of zeolite;

[0014] Its preparation method 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. Mix the prepared substance A with the above-mentioned sodium thiosulfate crystals and hypophosphorous acid crystals to obtain the product.

[0017] The light color agent prepared in this example is used to prepare rosin, and its addition amount is 2%. The Garner color number of the prepared rosin is 3, and the softening point is 97°C.

Embodiment 2

[0019] The light-coloring agent for preparing light-colored rosin is prepared from the following raw materials: 10 g of sodium thiosulfate crystals, 15 g of hypophosphorous acid crystals, and 50 g of zeolite;

[0020] Its preparation method comprises the following steps:

[0021] 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;

[0022] B. Mix the prepared substance A with the above-mentioned sodium thiosulfate crystals and hypophosphorous acid crystals to obtain the product.

[0023] The light color agent prepared in this example is used to prepare rosin, and its addition amount is 2.5%. The Garner color number of the prepared rosin is 3, and the softening point is 98°C.

Embodiment 3

[0025] The light coloring agent for preparing light-colored rosin is prepared from the following raw materials: 8 g of sodium thiosulfate crystals, 12 g of hypophosphorous acid crystals, and 51 g of zeolite;

[0026] Its preparation method comprises the following steps:

[0027] A. Put the zeolite in a lead nitrate solution with a concentration of 0.1mol / L, soak it for 1 day; then take it out, dry it at 95°C until the water content is 25%, then roast it at 400°C for 7 hours, and cool to obtain the substance A, standby;

[0028] B. Mix the prepared substance A with the above-mentioned sodium thiosulfate crystals and hypophosphorous acid crystals to obtain the product.

[0029] The light color agent prepared in this example is used to prepare rosin, and its addition amount is 3%. The Garner color number of the prepared rosin is 3, and the softening point is 96°C.

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Abstract

The invention discloses a reduced-color reagent for preparing light-color rosin, belonging to the technical field of rosin processing. The reduced-color reagent is prepared from the following raw materials in parts by weight: 5-10 parts of sodium thiosulfate crystals, 10-15 parts of hypophosphite crystals and 50-55 parts of zeolite. The preparation method comprises the following steps: soaking zeolite into a 0.1mol / L lead nitrate solution for 1-2 days; taking out zeolite, drying zeolite at the temperature of 80-95 DEG C until the moisture content is 20-30 percent; roasting at the temperature of 300-450 DEG C for 6-8 hours, and cooling to obtain a substance A; and uniformly mixing the substance A, the sodium thiosulfate crystals and the hypophosphite crystals, thereby obtaining the reduced-color reagent. According to the invention, the oxidation reaction of rosin in the rosin preparation process can be effectively reduced, so that rosin of very light color is prepared.

Description

technical field [0001] The invention belongs to the technical field of rosin processing, in particular to a light-coloring agent for preparing light-colored rosin. Background technique [0002] Rosin is a non-volatile natural resin obtained from pine resin as raw material through different processing methods. Among them, light-colored rosin is an important chemical raw material, widely used in soap, paper, paint, rubber and other industries. However, because the rosin is prone to oxidation reaction in the preparation process, the color of the prepared rosin is too dark, which cannot meet the market demand. Contents of the invention [0003] The technical problem solved by the invention is to provide a light-coloring agent for preparing light-colored rosin, and the light-coloring agent is used in the process of preparing rosin, which can solve the problem that the color of the obtained product rosin is too dark to meet market demand. [0004] In order to solve the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/02
Inventor 宣景建
Owner GUANGXI ZHONGCHANG RESIN