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Synthetic polymer scale inhibitor and dispersant

A scale inhibitor and dispersant, a technology for synthesizing polymers, which is applied in the fields of chemical technology and water treatment, and can solve problems such as long time for scale removal.

Inactive Publication Date: 2015-05-27
QINGDAO WATER WORLD ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is not very serious dirt, add a higher concentration (30-100mg / l) of sodium acrylate to the water, the water will gradually become cloudy, and the turbidity will increase, indicating that the dirt will gradually loosen and flow out with the water, but by this It takes a long time to descale

Method used

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  • Synthetic polymer scale inhibitor and dispersant
  • Synthetic polymer scale inhibitor and dispersant
  • Synthetic polymer scale inhibitor and dispersant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008]

[0009] Preparation method: add solvent into the reactor, add polyacrylic acid (PAA), polyacrylamide (PAM) and sodium acrylate into the reactor, heat and stir evenly. Add polymaleic anhydride, sodium dioctyl sulfosuccinate and polyethylene oxide at about 45-50°C, and react for 60 minutes.

[0010] This product can not only prevent the generation of dirt, but also penetrate into the gaps of the dirt, so that the dirt can loosen and come out gradually.

Embodiment 2

[0012]

[0013] The preparation method is the same as above.

[0014] This product gradually dissolves phosphate ions in the system where phosphate scale has occurred.

Embodiment 3

[0016]

[0017]

[0018] The preparation method is the same as above.

[0019] When the present invention is adsorbed on the surface of crystals and dirt particles, the electronegativity of the particles is strengthened, and the loose polymer prevents the particles from getting close to each other and growing together, so that the dirt particles can maintain a dispersed suspension state for a long time, which is not easy Dirt forms.

[0020] The synthetic polymer antiscaling and dispersing agent, especially the anionic synthetic polymer antiscaling and dispersing agent has high surface activity in water, and they are easily adsorbed on the crystal nucleus in water, which reduces the surface energy of the crystal nucleus and makes the small The re-dissolution of the crystals distorts the lattice of the large crystals and destroys the orientation of the crystallization units of the scale. The above-mentioned polymers are used together with other strong and efficient dispe...

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Abstract

The invention provides a synthetic polymer scale inhibitor and dispersant, which is composed of a poly maleic anhydride polyacrylic acid (PAA), polyacrylamide (PAM), sodium acrylate, poly ethylene oxide, dioctyl sodium sulfosuccinate, and a solvent. A preparation method of the product is as below: adding solvent into a reactor, adding PAA, PAM and sodium acrylate into the reactor, heating and stirring uniformly; and adding poly maleic anhydride, dioctyl sodium sulfosuccinate and poly ethylene oxide, and reacting for 60 min.

Description

technical field [0001] The invention relates to a scale inhibitor dispersant, more specifically a synthetic polymer scale inhibitor dispersant, which belongs to the fields of chemical technology and water treatment. Background technique [0002] With the rapid development of polymer chemistry and the continuous innovation of polymer chemical synthesis technology, a large number of new multifunctional polymers continue to emerge. Especially the in-depth study of the relationship between the structure and performance of polymers, people can synthesize polymer compounds that are more suitable for actual production requirements according to the requirements of performance. The development of the copolymerization reaction and the good performance of the copolymer make the copolymerization reaction product have a wider application prospect. Water-soluble copolymers play an important role as scale and corrosion inhibitors in industrial circulating cooling water systems. When thes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12
CPCC02F5/12C02F2305/00
Inventor 张学珍童乐
Owner QINGDAO WATER WORLD ENVIRONMENTAL PROTECTION TECH
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