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Environment-friendly multifunctional water treatment agent for circulation cooling water and preparation method of water treatment agent

A technology of water treatment agent and circulating cooling water, applied in water/sludge/sewage treatment, special treatment targets, chemical instruments and methods, etc., can solve the problems of increasing the usage of water treatment agent and increasing the cost of industrial application, etc. To achieve the effect of reducing the risk of pipeline scaling, wide range of use, and environmental friendliness

Inactive Publication Date: 2018-10-16
ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned patented technologies all adopt the compound preparation process, but the common compound technology cannot meet the requirements of water treatment agents, and also increases the use of water treatment agents, increasing the cost of its industrial application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] First, dissolve 6g of PPG-MA / AA in reverse osmosis product water, control the temperature at 25±10°C, then add 4g of sodium hydroxide and 8g of polyacrylic acid in turn and continue to stir and mix. After stirring for 1 to 2 hours, let it stand for 1 hours.

[0028] Gained water treatment agent is when dosage is 8mg / L, to CaCO 3 Scale inhibition rate is 90.3%, for CaSO 4 Scale inhibition rate is 99.1%, for BaSO 4 The scale inhibition rate can reach 81.5%.

example 2

[0029] Example 2: First, dissolve 10g of PPG-MA / AA in reverse osmosis product water, control the temperature at 25±10°C, then add 6g of sodium hydroxide and 12g of polyacrylic acid in turn and continue to stir and mix for 1 to 2 hours. Let it stand for 1 hour.

[0030] Gained water treatment agent is when dosage is 8mg / L, to CaCO 3 Scale inhibition rate is 91.5%, for CaSO 4 Scale inhibition rate is 99.7%, for BaSO 4 The scale inhibition rate can reach 80.2%.

example 3

[0031] Example 3: First, dissolve 5g of PPG-MA / AA in reverse osmosis product water, control the temperature at 25±10°C, then add 7g of sodium hydroxide and 15g of polyacrylic acid in sequence and continue to stir and mix. After stirring for 1 to 2 hours, stand still Let it stand for 1 hour.

[0032] Gained water treatment agent is when dosage is 8mg / L, to CaCO 3 Scale inhibition rate is 89.6%, for CaSO 4 Scale inhibition rate is 99.7%, for BaSO 4 The scale inhibition rate can reach 83.8%.

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Abstract

The invention provides an environment-friendly multifunctional water treatment agent for circulation cooling water and a preparation method of the water treatment agent. The environmentally-friendly multifunctional water treatment agent is composed of PPG-MA / AA (copolymer of monomer of maleic anhydride ring-opening esterified polypropylene glycol and acrylic acid), polyacrylic acid, sodium hydroxide and pure water, wherein the mass ratio of the PPG-MA / AA, polyacrylic acid, sodium hydroxide and pure water is (5-25):(5-15):(1-15):(35-75). The multifunctional water treatment agent has stable performance under the application conditions of high-temperature high-hardness circulation water, has excellent effects of resisting CaCO3, CaSO4 and BaSO4, has a significant effect of dispersing iron pollution, and can be widely applied to treatment of the high-temperature high-hardness circulation water and conventional water and other fields. The multifunctional water treatment agent has the characteristics that the water treatment agent is obtained by compounding the following components: in percent by mass, 5-25% of PPG-MA / AA, 5-15% of polyacrylic acid, 1-15% of sodium hydroxide, 35-75% of pure water, and the product has the appearance of pale yellow liquid and a density of 1.1+ / -0.05.

Description

technical field [0001] The invention relates to the field of circulating water treatment agents, relates to a circulating water treatment agent and a preparation method thereof, and is a water treatment agent suitable for circulating water systems, especially suitable for use in circulating cooling water systems under high temperature and high hardness. Background technique [0002] In order to maintain a certain temperature for the reactor reaction in the industry, cooling water is generally used to cool down the exothermic reaction. The use of cooling water in industrial water accounts for more than 70%. With the shortage of fresh water resources, the industry begins to use circulating cooling water. Generally, cooling water will be recycled 3 to 6 times. With the repeated use of cooling water, the cooling water Inorganic salt ions will form scale at high temperature, and the generated inorganic scale is generally calcium carbonate, calcium sulfate, barium sulfate, etc. On...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10
CPCC02F5/105C02F2303/22
Inventor 王虎传王贤娜彭成军方晨晨李传润
Owner ANHUI UNIVERSITY OF TRADITIONAL CHINESE MEDICINE
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