Propenol itaconic acid sulfonate multipolymer scale inhibiting agent and preparation method thereof

A technology of propylene alcohol itaconate sulfonate and multiple copolymers, which is applied in the fields of scale removal and water softening, chemical instruments and methods, water/sludge/sewage treatment, etc. Solve the problems of large amount of additives, etc., and achieve the effects of simple production process, good dispersion, formation of scale layer and adhesion inhibition

Inactive Publication Date: 2010-07-28
山东省特种设备检验研究院淄博分院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of inorganics is large, and the scale inhibition effect is poor; the functional groups of polycarboxylates and organic phosphines are relatively simple; the addition of multi-component copolymers has the advantages of less addition, superior performance, and high temperature resistance.

Method used

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  • Propenol itaconic acid sulfonate multipolymer scale inhibiting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In a four-neck flask equipped with a mechanical stirrer, a constant pressure dropping funnel, and a thermometer, add 130 g of itaconic acid, 72 g of isopropanol, and 400 g of distilled water, and heat to 60 ° C to completely dissolve the itaconic acid; Dissolve 18g of sodium in 50g of distilled water, add it quickly after itaconic acid dissolves; then heat up to 90°C; dissolve 18g of sodium propylene sulfonate in 55g of distilled water, add 100g of distilled water and 15g of sodium persulfate to prepare the initiator; Add 27g of sodium hypophosphite and 15g of propylene alcohol to 100g of distilled water to prepare a reducing agent; after the itaconic acid solution is heated to 70°C, quickly add 30ml of initiator and 10ml of reducing agent, and dissolve the initiator and reducing agent within 2 hours Evenly drop into the beaker, maintain the reaction temperature at 90 ° C, after the monomer and initiator are added dropwise, continue to keep warm (insulate for 20 minutes)...

Embodiment 2

[0035]In a four-necked flask equipped with a mechanical stirrer, a constant pressure dropping funnel, and a thermometer, add 150 g of itaconic acid, 72 g of isopropanol, and 400 g of distilled water, and heat to 60 ° C to completely dissolve the itaconic acid; Dissolve 8g of sodium in 50g of distilled water, add it quickly after itaconic acid dissolves; then heat up to 90°C; dissolve 8g of sodium propylene sulfonate in 55g of distilled water, add 100g of distilled water and then 8g of sodium persulfate to prepare the initiator; Add 8g of sodium hypophosphite and 8g of allyl alcohol to 100g of distilled water to prepare a reducing agent; after the itaconic acid solution is heated to 70°C, add 30ml of initiator and 10ml of reducing agent quickly, and dissolve the initiator and reducing agent within 2 hours Evenly drop into the beaker, maintain the reaction temperature at 90 ° C, after the monomer and initiator are added dropwise, continue to keep warm (insulate for 20 minutes) an...

Embodiment 3

[0039] In a four-necked flask equipped with a mechanical stirrer, a constant pressure dropping funnel, and a thermometer, add 120 g of itaconic acid, 72 g of isopropanol, and 400 g of distilled water, and heat to 60 ° C to completely dissolve the itaconic acid; Sodium 30g is dissolved in 80g distilled water, after itaconic acid dissolves, add quickly; then heat up to 90°C; dissolve 30g sodium propylene sulfonate in 100g distilled water, add 100g distilled water and then add 18g sodium persulfate to prepare the initiator; Add 36g of sodium hypophosphite and 24g of propylene alcohol to 100g of distilled water to prepare a reducing agent; after the itaconic acid solution is heated to 70°C, quickly add 30ml of initiator and 10ml of reducing agent, and dissolve the initiator and reducing agent within 2 hours Evenly drop into the beaker, maintain the reaction temperature at 90 ° C, after the monomer and initiator are added dropwise, continue to keep warm (insulate for 20 minutes) and...

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Abstract

The invention relates to a polynary scale and corrosion inhibiting agent and a preparation method thereof, in particular to a propenol itaconic acid sulfonate multipolymer scale inhibitin agent and a preparation method thereof. The scale inhibiting agent is characterized by being prepared from propenol, itaconic acid and sulfonate through aqueous polymerization under an initiating agent system, wherein by taking the mass of the itaconic acid as a reference, the addition of the sulfonate is 10-50 percent, the addition of the propenyl is 5-20 percent, the addition of the initiating agent is 5-30 percent, and the addition of sodium hypophosphite is 5-30 percent. In the invention, the itaconic acid is used as a raw material and is subjected to the aqueous polymerization with the propenyl and the sulfonate, and the invention has simple production process, fewer product residual monomers and no three waste exhausts. A polymer prepared by using the method has high-efficiency inhibiting effect on the formation and the adhesion of scale layers of carbonates, sulfates, phosphates, silicates, and the like in a cooling water system and good dispersant effect on iron oxide, sludge, and the like.

Description

technical field [0001] The invention relates to a multi-component scale and corrosion inhibitor and a preparation method thereof, in particular to a multi-component copolymer scale inhibitor of propylene alcohol itaconic acid sulfonate and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of my country's economy, the scarcity and pollution of water resources have become one of the important factors affecting my country's economic development. At present, more than 300 large and medium-sized cities are short of water, and one-third of them are seriously short of water, especially the developed cities such as the eastern coastal cities. Groundwater resources are exhausted in many places, and guest water resources are limited. Water conservation, sewage treatment and development of new water sources are equally important. Water is a commonly used cooling medium in industrial heat exchange systems. The consumption of industr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/14C08F222/02
Inventor 张文辉刘建文刘秀华齐金莲
Owner 山东省特种设备检验研究院淄博分院
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