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A kind of itaconic acid polymer containing phosphine group and sulfonic acid group and its preparation method

A technology based on itaconic acid and sulfonic acid, which is applied in the fields of chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the problem of poor corrosion inhibition performance, complicated operation, itaconic acid polymer Poor dispersion performance and other problems, to achieve the effect of good scale inhibition ability and good corrosion inhibition ability

Active Publication Date: 2016-01-13
ENERGY RESOURCES INST HEBEI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The original itaconic acid polymer does not contain phosphine groups, and its corrosion inhibition performance is poor. When used as a water treatment agent, it needs to be compounded with other corrosion inhibitors, and the actual process is complicated.
Poor dispersibility of itaconic acid polymers without sulfonic acid groups

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Take itaconic acid, sodium propylene sulfonate, ferrous ammonium sulfate, isopropanol, water, 30% hydrogen peroxide and sodium hypophosphite solution according to the mass ratio 52:13:2:1.5:50:22:13. Conic acid, sodium propylene sulfonate, ferrous ammonium sulfate, isopropanol, and water are sequentially added to a four-necked flask equipped with reflux condenser, dropping funnel, thermometer, and stirring device, and the temperature is raised to 90℃ and kept at 90±1℃ , And then add hydrogen peroxide and sodium hypophosphite aqueous solution dropwise at the same time. After 1.5 hours of dropwise addition, the temperature is raised to 102±1℃, and the reaction is refluxed for 2h. After the reaction is completed, the material is cooled to room temperature and discharged. The reaction product is the itaconic acid polymer containing phosphine and sulfonic acid groups. The performance of the polymer was tested, and the test results showed that when the dosage was 20mg / L, the s...

Embodiment 2

[0021] Take itaconic acid, sodium propylene sulfonate, ferrous ammonium sulfate, isopropanol, water, 30% hydrogen peroxide and sodium hypophosphite solution according to the mass ratio 55:11:2:1.5:40:22:13. Conic acid, sodium propylene sulfonate, ferrous ammonium sulfate, isopropanol, and water were added to a four-necked flask equipped with reflux condenser, dropping funnel, thermometer and stirring device in sequence, and heated to 90℃ and kept the temperature at 90±1℃ , And then add hydrogen peroxide and sodium hypophosphite aqueous solution dropwise at the same time. After 1.5 hours of dropwise addition, the temperature is raised to 102±1℃, and the reaction is refluxed for 2h. After the reaction is completed, the material is cooled to room temperature and discharged. The reaction product is the itaconic acid polymer containing phosphine and sulfonic acid groups. The performance of the polymer was tested and the test results showed that when the dosage was 20mg / L, the scale ...

Embodiment 3

[0023] Take itaconic acid, sodium propylene sulfonate, ferrous ammonium sulfate, isopropanol, water, 30% hydrogen peroxide and sodium hypophosphite solution according to the mass ratio of 50:16:2:1.5:40:33:9. Conic acid, sodium propylene sulfonate, ferrous ammonium sulfate, isopropanol, and water are sequentially added to a four-necked flask equipped with reflux condenser, dropping funnel, thermometer, and stirring device, and the temperature is raised to 90℃ and kept at 90±1℃ , And then add hydrogen peroxide and sodium hypophosphite aqueous solution dropwise at the same time. After 1.5 hours of dropwise addition, the temperature is raised to 102±1℃, and the reaction is refluxed for 2h. After the reaction is completed, the material is cooled to room temperature and discharged. The reaction product is the itaconic acid polymer containing phosphine and sulfonic acid groups. The performance of the polymer was tested, and the test results showed that when the dosage was 20mg / L, the...

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Abstract

The invention discloses an itaconic acid polymer containing a phosphine group and a sulfo group, and a preparation method of the itaconic acid polymer, belonging to the technical field of chemical products. A multifunctional scale and corrosion inhibitor which has the properties of scale inhibition, corrosion inhibition and dispersion is synthesized by taking an itaconic acid as the main monomer, polymerizing through a solution and oxidizing and reducing a triggering system. The itaconic acid polymer is an agentia with low-phosphorous, high efficiency and good scale inhibition capability in high-alkalinity water, and the product has good corrosion inhibition. The polymer is easy to biologically degrade, and the biodegradability after 28 days can be 70%, so that the itaconic acid polymer belongs to environment-friendly products.

Description

Technical field [0001] The invention relates to an itaconic acid polymer containing phosphine groups and sulfonic acid groups and a preparation method thereof, and belongs to the technical field of chemical products. Background technique [0002] In industrial production, circulating cooling water almost accompanies the entire production process and plays a very important role. A good circulating cooling water system is a necessary condition for the stable operation of enterprise production equipment. Improving the level of water treatment technology, extending the service life of equipment and device operation cycle, and achieving water saving and consumption reduction are important ways to improve the overall economic benefits of enterprises. As early as the 1960s, people began to use the method of adding chemicals to reduce the scaling problem of industrial circulating cooling water in refineries, chemical plants, and fertilizer plants. Since the scale inhibitor of copolymer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F230/02C08F222/02C08F228/02C08F4/40C02F5/14
CPCC23F11/173C23F14/02
Inventor 刘振法张利辉付浩林董鸿志
Owner ENERGY RESOURCES INST HEBEI ACADEMY OF SCI
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