Producing process of quaternary ammonium type cation modifying starch

A technology of modified starch and production process, which is applied in the field of production technology of quaternary ammonium cationic modified starch, can solve the problems of low-level repeated extension of products, weak product market competitiveness, increased cost of production enterprises, etc. Effects of gelatinization temperature and retrogradation, high production efficiency

Inactive Publication Date: 2011-01-05
四川省蓬溪县弘桥实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, for the manufacturers of quaternary ammonium cationic modified starch in most countries, they basically use the traditional wet process to produce modified starch. This process consumes a lot of fresh water, and the wastewater generated during the production process has high COD and salt content. Heavy, causing serious pollution problems
Moreover, my country's modified starch production enterprises generally have small scale, outdated equipment, low production process level, high energy consumption, and repeated extension of low-level products, which makes the cost of production enterprises increase, economic benefits are low, and product market competitiveness is not strong.

Method used

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  • Producing process of quaternary ammonium type cation modifying starch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Add 1000 parts of starch into the mixer, start the mixer, add 5-20 parts of powdered sodium hydroxide, 0.2 parts of sodium hexametaphosphate, 30-80 parts of 3-chloro-2-hydroxypropyl with a concentration of 69% Chlorotrimethylammonium chloride (CHPTMA) solution, stirred at room temperature for 10-20 minutes, then fully mixed by a high-speed mixer, sent to the inlet of microwave far-infrared equipment, adjusting the thickness of the material layer to 3-6cm, and turning on microwave far-infrared equipment, adjust the temperature of the material at 50-150°C, keep it for 5-60 minutes, test the moisture content, viscosity and degree of substitution to reach 10-13%, 30-80mpa.s and 0.02-0.05 respectively, then put the material into the cooling compound When the temperature in the machine drops below 40°C, spray 8-20 parts of sulfuric acid solution with a concentration of 4% to 10% and add 5 to 15 parts of potassium ferrocyanide, and then mix thoroughly for 10 to 20 minutes to in...

Embodiment 2

[0022] Add 1000 parts of starch into the mixer, start the mixer, add 20-30 parts of composite catalyst composed of sodium metasilicate, sodium carbonate or sodium metaaluminate, 0.3 parts of epichlorohydrin, and active ether with a concentration of 69%. Chemical agent N-(2,3 epoxypropyl) trimethyl ammonium chloride (GTA) solution 30 ~ 90 parts, stir at room temperature for 10 ~ 15min, follow-up procedure is the same as Example 1, and then put this material into cooling complex When the temperature drops below 40°C in the dispenser, spray 8-15 parts of dilute hydrochloric acid solution with a concentration of 3%-8% and add 5-15 parts of sodium aluminosilicate, and then mix thoroughly for 10-20 minutes to increase and improve The various performances of the product meet the various requirements of users for the modified starch, and finally the product of the present invention is obtained by sieving and packaging.

[0023] The modified starch obtained in the above examples is mai...

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Abstract

The invention discloses a producing process of quaternary ammonium type cation modifying starch, comprising the following steps of: mixing, modifying, neutralizing, physically synergizing, screening, weighing and packing. The invention ensures that the common starch has cation characteristics and higher substitution values, reduces pasting temperature and precipitability of starch, has the advantages of reasonable producing process, high heating efficiency, thorough modification, good film forming property, high binding rate, high retention, low cost, small investment, low energy consumption, low pollution, simple producing process, high production efficiency, stable and reliable quality and wide application range and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a production process of starch, more specifically to a production process of quaternary ammonium cationic modified starch. Background technique [0002] At present, for the manufacturers of quaternary ammonium cationic modified starch in most countries, they basically use the traditional wet process to produce modified starch. This process consumes a lot of fresh water, and the wastewater generated during the production process has high COD and salt content. Heavy, causing serious pollution problems. Moreover, my country's modified starch production enterprises generally have small scale, outdated equipment, low production process level, high energy consumption, and repeated extension of low-level products, which makes the cost of production enterprises increase, economic benefits are low, and product market competitiveness is not strong. Contents of the invention [0003] The purpose of the present invention is to overcome ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L3/04C08B31/00C08B31/08
Inventor 何世桥钟耕李大勇杨勇
Owner 四川省蓬溪县弘桥实业有限公司
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