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Itaconic acid copolymer, and preparing method and use thereof

An itaconic acid copolymer, itaconic acid technology, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the application scope limitation, high cost, high hardness water treatment problems such as limited effect, to achieve the effect of wide scale removal, low cost and simple production

Inactive Publication Date: 2003-11-12
QINGDAO LANGYATAI GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the above invention solves the problem of phosphorus in the water treatment agent, it has a limited effect on the treatment of high hardness water, and the cost is high, so the scope of application is limited

Method used

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  • Itaconic acid copolymer, and preparing method and use thereof

Examples

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Comparison scheme
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example 1

[0026] Example 1, 100 kilograms of solvent water, 10 kilograms of itaconic acid, 2 kilograms of sodium propylene sulfonate, 5 kilograms of 2-hydroxypropyl (meth)acrylate, and 0.2 kilograms of sodium persulfate.

example 2

[0027] Example 2, 100 kilograms of solvent water, 20 kilograms of itaconic acid, 1 kilogram of sodium propylene sulfonate, 5 kilograms of 2-hydroxypropyl (meth)acrylate, and 3 kilograms of sodium persulfate.

example 3

[0028] Example 3, 100 kilograms of solvent water, 20 kilograms of itaconic acid, 6 kilograms of sodium propylene sulfonate, 15 kilograms of 2-hydroxypropyl (meth)acrylate, and 5 kilograms of sodium persulfate.

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Abstract

The present invention discloses an itaconic acid copolymer, its preparation, its preparation method and its application. Said invention provides the general formula of its chain unit structure which is obtained by utilizing itaconic acid, (methyl) propene sulfosalt, (methyl) hydroxyl acrylate monomer and initiating agent through the polymerization in aqueous solution, said polymer colour is brown-red or caramel, and its pH value is less than or equal to 3.0. Said polymer can be used as scale inhibitor and cleaning agent in water treatment.

Description

technical field [0001] The invention relates to a copolymer of itaconic acid, a preparation method thereof and an application as a water treatment agent. Background technique [0002] It is known that modified natural compounds such as lignin and tannin were mainly used in the early stages of existing water treatment scale inhibition, and in recent years mainly inorganic polymers, such as trisodium polyphosphate, and synthetic organic polymers, such as polyacrylic acid. Its scale and corrosion inhibition mechanisms are mainly chelation, adsorption and dispersion. However, single carboxyl group, hydroxyl group, sulfonic acid group or phosphoric acid group have limited processing capacity, so binary and ternary polymers are produced, but the above polymers mostly contain phosphorus, which cannot be biodegraded and seriously pollutes water sources. Today, more and more attention has been paid, and phosphorus-containing products are gradually banned. Therefore, phosphorus-free...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C08F222/02
Inventor 李悦明孙炳江单云华徐贵青
Owner QINGDAO LANGYATAI GRP