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Water treatment agent and preparation method thereof

A water treatment agent, sodium humate technology, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc., can solve problems such as equipment corrosion and cycle turning, black, etc., to achieve lightening Pollution, effect enhancement, effect of inhibiting bacteria and algae

Active Publication Date: 2017-01-25
重庆中迪水处理技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a water treatment agent to solve the problem of corrosion of equipment by the water treatment agent in the prior art and the problem that the circulation becomes black

Method used

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  • Water treatment agent and preparation method thereof
  • Water treatment agent and preparation method thereof
  • Water treatment agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of a water treatment agent, comprising the steps:

[0023] S1, 10kg sodium humate is added to the reactor, then 50kg water is added in the reactor, heating and stirring makes the sodium humate dissolve completely;

[0024] S2, keeping the temperature of the above sodium humate solution at 35°C, under stirring conditions, add 4.8kg of ethylenediaminetetraacetic acid, and react for 36h;

[0025] S3. Cool to room temperature, add 3.24kg sodium hexametaphosphate and 6.48kg zinc sulfate, stir evenly, heat to 70°C, and react for 10h;

[0026] S4, be cooled to room temperature, filter, obtain filtrate, add 5.96kg of sodium hypochlorite to the filtrate, decolorize, promptly obtain colorless semi-finished product;

[0027] S5. Add 1.61 kg of hydroxyethylidene diphosphonic acid and 8.05 kg of polymaleic anhydride to the semi-finished product, and mix them evenly to obtain a water treatment agent.

Embodiment 2

[0029] A preparation method of a water treatment agent, comprising the steps:

[0030] S1, 10kg sodium humate is added to the reactor, then 80kg water is added in the reactor, heating and stirring makes the sodium humate completely dissolve;

[0031] S2. Keep the above sodium humate solution at a temperature of 60°C, add 5.4kg of EDTA under stirring conditions, and react for 24h;

[0032] S3. Cool to room temperature, add 19.08kg sodium hexametaphosphate and 9.54kg zinc sulfate, mix well, heat to 95°C, and react for 2h;

[0033] S4, cool to room temperature, filter, obtain filtrate, add 24.80kg of sodium hypochlorite to the filtrate, decolorize, promptly obtain colorless semi-finished product;

[0034] S5. Add 14.88kg of hydroxyethylidene diphosphonic acid and 2.98kg of polymaleic anhydride to the semi-finished product, and mix them evenly to obtain a water treatment agent.

Embodiment 3

[0036] A preparation method of a water treatment agent, comprising the steps:

[0037] S1, 10kg sodium humate is added to the reactor, then 30kg water is added in the reactor, heating and stirring makes the sodium humate completely dissolve;

[0038] S2, keeping the temperature of the above sodium humate solution at 40°C, under stirring conditions, add 0.8kg of ethylenediaminetetraacetic acid, and react for 6h;

[0039] S3. Cool to room temperature, add 4.08kg sodium hexametaphosphate and 1.22kg zinc sulfate, mix well, heat to 80°C, and react for 4h;

[0040] S4, cool to room temperature, filter, obtain filtrate, add 6.92kg of sodium hypochlorite to the filtrate, decolorize, promptly obtain colorless semi-finished product;

[0041] S5. Add 2.65kg of hydroxyethylidene diphosphonic acid and 2.65kg of polymaleic anhydride to the semi-finished product, and mix them evenly to obtain a water treatment agent.

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Abstract

The invention belongs to the field of chemical engineering, relates to water treatment agents, and in particular relates to a water treatment agent and a preparation method thereof. The water treatment agent is prepared from the following raw materials: sodium humate, ethylenediaminetetraacetic acid, sodium hexametaphosphate, zinc sulfate, sodium hypochlorite, hydroxy ethidene diphosphonic acid, polymaleic anhydride and water. The preparation method of the water treatment agent comprises the following steps: on the basis of a sodium humate type, performing grafted chelating reaction, and grafting into a corrosion inhibition group so as to realize a corrosion inhibition function of the agent; then performing compound reaction, filtering, adsorbing and decoloring, thereby solving the problems that a sodium humate type water treatment agent is serious in corrosion and circulating water is blackened, enabling the sodium humate type water treatment agent to achieve good effects of inhibiting scales, slowing down scales and inhibiting the breeding of bacteria and algae, and a large amount water does not need to be drained.

Description

technical field [0001] The invention belongs to the chemical field and relates to a water treatment agent, in particular to a water treatment agent and a preparation method thereof. Background technique [0002] Energy saving and environmental protection are two major concerns in today's world. Therefore, efficient, new and green environmental protection products have become one of the key research directions of scientists from all over the world. Water is the best carrier for industrial heat exchange. In order to save water resources, enterprises recycle cooling water. However, the industrial circulating water is easy to scale during the process of circulating heat exchange. Low heat exchange rate, equipment corrosion and microbial growth caused by scaling of circulating water are three problems that plague enterprises. The current solution is to add phosphorus-containing water treatment chemicals to the circulating water to achieve the purpose of alleviating corrosion a...

Claims

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Application Information

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IPC IPC(8): C02F5/10C02F5/14
CPCC02F5/105C02F5/145
Inventor 张国民
Owner 重庆中迪水处理技术有限公司
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