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Composite scale and corrosion inhibitor containing sodium polyepoxysuccinate and preparation method thereof

A technology of sodium polyepoxysuccinate, scale and corrosion inhibitor, applied in chemical instruments and methods, scale removal and water softening, special treatment targets, etc., can solve the problems of low scale inhibition rate and corrosion inhibition rate, etc. The effect of smooth and strong bactericidal effect

Inactive Publication Date: 2017-04-26
陕西蔚然青科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if sodium polyepoxysuccinate is used alone for water treatment, the scale inhibition rate is mostly around 95%, and the corrosion inhibition rate is around 93%, and the scale and corrosion inhibition rates are relatively low.

Method used

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  • Composite scale and corrosion inhibitor containing sodium polyepoxysuccinate and preparation method thereof
  • Composite scale and corrosion inhibitor containing sodium polyepoxysuccinate and preparation method thereof
  • Composite scale and corrosion inhibitor containing sodium polyepoxysuccinate and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of a composite scale and corrosion inhibitor containing sodium polyepoxysuccinate, the operation steps are as follows:

[0041] step 1,

[0042] Weigh 280g of sodium polyepoxysuccinate, 100g of benzotriazole, 200g of sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer, 200g of tetrakis hydroxymethyl phosphorus sulfate, 120g of zinc sulfate and 100g of deionized water.

[0043] Step 2,

[0044] First add deionized water to the reaction equipment, then add benzotriazole while stirring, stir and mix well, then add sodium polyepoxysuccinate while stirring, and then add tetramethylol while stirring Phosphorus sulfate, after stirring and mixing, then add zinc sulfate while stirring, and finally add sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer while stirring, wait for stirring and mixing to obtain corrosion inhibitor Detergent A.

[0045] Wherein, the synthetic steps of above-mentioned sodium polyepoxysuccinate ar...

Embodiment 2

[0053] A preparation method of a composite scale and corrosion inhibitor containing sodium polyepoxysuccinate, the operation steps are as follows:

[0054] step 1,

[0055] Take by weighing the sodium polyepoxysuccinate of 200g, the benzotriazole of 40g, the tetrakis hydroxymethyl phosphorus sulfate of the sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer 110g of 150g, the zinc sulfate of 100g and 400g of deionized water.

[0056] Step 2,

[0057] First add deionized water to the reaction equipment, then add benzotriazole while stirring, stir and mix well, then add sodium polyepoxysuccinate while stirring, and then add tetramethylol while stirring Phosphorus sulfate, after stirring and mixing, then add zinc sulfate while stirring, and finally add sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer while stirring, wait for stirring and mixing to obtain corrosion inhibitor Detergent B.

[0058] Wherein, the synthetic steps of above-mentioned...

Embodiment 3

[0066] A preparation method of a composite scale and corrosion inhibitor containing sodium polyepoxysuccinate, the operation steps are as follows:

[0067] step 1,

[0068] Weigh 220g of sodium polyepoxysuccinate, 80g of benzotriazole, 170g of sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer, 150g of tetrakis hydroxymethyl phosphorus sulfate, 200g of zinc sulfate and 180g of deionized water.

[0069] Step 2,

[0070] First add deionized water to the reaction equipment, then add benzotriazole while stirring, stir and mix well, then add sodium polyepoxysuccinate while stirring, and then add tetramethylol while stirring Phosphorus sulfate, after stirring and mixing, then add zinc sulfate while stirring, and finally add sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer while stirring, wait for stirring and mixing to obtain corrosion inhibitor Detergent C.

[0071] Wherein, the synthetic steps of above-mentioned sodium polyepoxysuccinate are...

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Abstract

The present invention discloses a composite scale and corrosion inhibitor containing sodium polyepoxysuccinate, and the composite scale and corrosion inhibitor is composed of sodium polyepoxysuccinate, benzotriazole, sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer, tetrakis hydroxymethyl phosphonium sulfate, zinc sulfate and deionized water. A preparation process comprises the following steps: first deionized water is added into a container, then benzotriazole is added while stirring, sodium polyepoxysuccinate is added while stirring after even mixing and stirring are completed, then tetrakis hydroxymethyl phosphonium sulfate is added while stirring after even mixing and stirring are completed, then zinc sulfate is added while stirring after even mixing and stirring are completed, finally the sodium acrylate-hydroxyethyl methacrylate-methyl acrylate copolymer is added while stirring and the obtained mixture is allowed to stand after even mixing and stirring are completed, so as to obtain the scale and corrosion inhibitor. The scale and corrosion inhibitor disclosed by the present invention has obvious corrosion inhibition effect on carbon steel, brass and stainless steel metal; the scale inhibition rate is up to 97 percent or above; and the scale and corrosion inhibitor has a particularly strong bactericidal effect on heterotrophic bacteria and can kill microorganisms in water and slime.

Description

technical field [0001] The invention belongs to a scale and corrosion inhibitor for treating circulating cooling water, and in particular relates to a composite scale and corrosion inhibitor containing polyepoxysodium sodium succinate and a preparation method thereof. Background technique [0002] The rapid increase of population and the rapid development of industry have led to an increasing shortage of water resources, especially in Northwest China. Therefore, water conservation has become an important way to develop water resources and has attracted widespread attention. Among them, circulating cooling water accounts for 90% of the total industrial water consumption. In the above, the sewage of the circulating water system is reduced, and the circulating water is treated to increase the concentration ratio of the circulating water, so that the water reuse rate can reach more than 96%. Natural water contains various salts that dissolve into cations and anions, mainly Ca 2...

Claims

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Application Information

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IPC IPC(8): C02F5/14C02F5/12C02F5/10
CPCC02F5/145C02F5/105C02F5/125C02F2303/04C02F2303/08C02F2303/22
Inventor 潘爱芳马润勇马昱昭
Owner 陕西蔚然青科技有限公司
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