Chitosan multiple-effect water treatment medicine and preparation method thereof

A technology of chitosan and water treatment, applied in water/sludge/sewage treatment, sterilization/microdynamic water/sewage treatment, chemical instruments and methods, etc., can solve the problem of increased transportation and storage costs, large labor force, and Multi-point problems, to achieve the effect of saving process and cost

Active Publication Date: 2015-02-11
SHANDONG TAIHE WATER TREATMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Most of the existing multi-effect water treatment chemicals are compound products. Due to the different performance of various components and different batches of products, the performance of compound products fluctuates greatly; more components also increase transportation and storage costs. ; At the same time, the process in use is cumbersome, the labor force is large, and the error rate is relatively increased

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 208kg of chitosan to 1000kg of 0.1% dilute acetic acid solution and stir to dissolve; add 312kg of dimethyl diallyl ammonium chloride, 1170kg of isopropenylphosphonic acid, 910kg of hydrolyzed maleic anhydride and stir evenly, turn on and heat to 80 ℃; dropwise add 26kg of sodium persulfate aqueous solution, keep 2h to complete the dropwise addition; keep the temperature and continue the reaction for 8h.

Embodiment 2

[0033] Add 196kg of chitosan to 500kg of 0.5% dilute acetic acid solution and stir to dissolve; add 280kg of dimethyl diallyl ammonium chloride, 1344kg of isopropenylphosphonic acid, 980kg of hydrolyzed maleic anhydride and stir evenly, turn on and heat to 75 ℃; 56 kg of benzoyl peroxide aqueous solution was added dropwise, and the dropwise addition was kept for 3 hours; the reaction was continued for 5 hours while maintaining the temperature.

Embodiment 3

[0035] Add 252kg of chitosan to 1000kg of 0.1% dilute acetic acid solution and stir to dissolve; add 308kg of dimethyl diallyl ammonium chloride, 1316kg of isopropenylphosphonic acid, and 924kg of hydrolyzed maleic anhydride, stir evenly, and start heating to 73 °C; add 22.4kg of an aqueous solution of cerium ammonium nitrate dropwise, and keep for 1 hour to complete the dropwise addition; keep the temperature and continue the reaction for 8 hours.

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PUM

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Abstract

The invention discloses a chitosan multiple-effect water treatment medicine which comprises the following components in percentage by mass: 1-15% of chitosan, 5-20% of dimethyl diallyl ammonia chloride, 10-80% of isopropylene phosphonic acid and 10-60% of hydrolysis maleic anhydride. The synthesis method specifically comprises steps of adding chitosan into an acetic acid diluted solution, stirring to dissolve, adding dimethyl diallyl ammonium chloride, isopropylene phosphonic acid and hydrolysis maleic anhydride, stirring and heating, dropping an initiator solution, after the dropping, keeping the temperature and continuously reacting till the final point.

Description

technical field [0001] The invention relates to the field of water treatment agents, in particular to a chitosan multi-effect water treatment agent. Background technique [0002] Industrial enterprises are big players in water consumption and sewage discharge. How to reduce the water consumption and sewage discharge of industrial enterprises has become the focus of increasing attention of the whole society. Among them, the repeated recycling of cooling water, which accounts for 70-80% of industrial water consumption, is an effective measure to save water, reduce emissions, save energy, and reduce consumption. Because there are a series of problems such as scaling, corrosion of equipment and pipes, slime, bacteria and algae in the process of water reuse, if they cannot be solved well, the circulating water will not be able to run at all. The development of advanced and reliable water treatment chemicals and application technologies can not only significantly reduce the water...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/10C02F1/50
Inventor 张秀华刘全华万振涛
Owner SHANDONG TAIHE WATER TREATMENT TECH CO LTD
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