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Circulating cooling water corrosion and scale inhibitor and preparation method thereof

A corrosion and scale inhibitor, a technology of circulating cooling water, applied in chemical instruments and methods, descaling and water softening, natural water treatment, etc. It is difficult to achieve high scale inhibition performance, which can enhance the scale inhibition effect, inhibit corrosion, and enhance the performance of Cl-pitting corrosion resistance.

Inactive Publication Date: 2016-04-13
广东顺德朗新环保有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

More typical in the green treatment agent of research at present is polyaspartic acid, discloses a kind of utilizing polyaspartic acid, amino trimethylene phosphonic acid, hydrolyzed maleic anhydride, A circulating water scale inhibitor prepared from acrylic acid and 2-acrylamide-2-methylpropanesulfonic acid copolymer, polyacrylic acid and water. It is safe, reliable, easy to configure, and convenient to use. However, polyaspartic acid The price of acid is relatively high, and its own corrosion and scale inhibition performance is generally difficult to reach a high level, and it can only achieve better scale inhibition effect by using it in combination with phosphorus-containing salts
[0005] On the other hand, sewage is reused as circulating cooling water, especially high-salt, high-conductivity wastewater has stronger corrosion factors than industrial water in the process of concentration treatment, and the original formula of corrosion and scale inhibitors is no longer applicable , the development of new formulations of corrosion and scale inhibitors based on the quality of urban sewage biochemical effluent is a key technology to solve the problem of urban sewage reuse as cooling water

Method used

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preparation example Construction

[0031] A preparation method of circulating cooling water corrosion and scale inhibitor, comprising the steps of:

[0032] S100 Stir each component of the corresponding mass percentage at normal temperature and pressure for 30 minutes, and mix uniformly to obtain a mixture; and

[0033] In S200, the mixture is placed in a reaction kettle equipped with ultrasonic waves and a super-strong magnetic field, and concentrated into viscous matter under the synergistic effect of ultrasonic waves and magnetic fields to prepare the circulating cooling water corrosion and scale inhibitor.

[0034] Wherein, the power of the ultrasonic waves in the step S200 is 20w-100w, and the strength of the ultra-strong magnetic field is 10T-20T.

[0035] Preferably, the power of the ultrasonic wave is 50w, and the strength of the ultra-strong magnetic field is 20T.

[0036] The corrosion and scale inhibitor for circulating cooling water has a wide range of raw material sources, low production cost, and...

Embodiment 1

[0040] The mass percentage of raw materials for the circulating cooling water corrosion and scale inhibitor is: 20% polyacrylamide, 5% sodium gluconate, 10% aminotrimethylene phosphoric acid, 6% ammonium molybdate, 15% cyclohexylamine , 35% plant extracts, 5% surfactants and 4% preservatives, and the rest is deionized water. Wherein, the components in the plant extract are: 20% gallic acid, 25% chlorogenic acid, 35% gallotannin, 20% ellagitannin in terms of mass percentage. Take the above components separately according to the mass ratio, stir at room temperature and pressure for 30 minutes to make them evenly mixed, and then place them in a reactor equipped with ultrasonic waves and super-strong magnetic fields for further concentration to make the mixed solution appear viscous , wherein the power of the ultrasonic wave is 50w, and the strength of the ultra-strong magnetic field is 20T. The results show that the measured corrosion inhibition rate of the present invention is ...

Embodiment 2

[0042] The mass percentage of raw materials for the circulating cooling water corrosion and scale inhibitor is: 30% polyacrylamide, 10% sodium gluconate, 15% aminotrimethylene phosphoric acid, 2% ammonium molybdate, 12% cyclohexylamine , 28% plant extracts, 0.5% surfactants and 2.5% preservatives, and the rest is deionized water. Wherein, the components in the plant extract are: 20% gallic acid, 25% chlorogenic acid, 35% gallotannin, 20% ellagitannin in terms of mass percentage. Take the above components separately according to the mass ratio, stir at room temperature and pressure for 30 minutes to make them evenly mixed, and then place them in a reactor equipped with ultrasonic waves and super-strong magnetic fields for further concentration to make the mixed solution appear viscous , wherein the power of the ultrasonic wave is 50w, and the strength of the ultra-strong magnetic field is 20T. The results show that the measured corrosion inhibition rate of the present inventio...

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Abstract

The invention relates to a circulating cooling water corrosion and scale inhibitor and a preparation method thereof. The circulating cooling water corrosion and scale inhibitor is composed of polyacrylamide, sodium gluconate, amino trimethylene phosphonic acid, ammonium molybdate, cyclohexylamine, a surface active agent, a plant extract, a preservative and water, wherein the plant extract is composed of gallic acid, chlorogenic acid, gallotannin and ellagitannin. Therefore, the circulating cooling water corrosion and scale inhibitor is applicable to recycling of an industrial circulating cooling water system and high-concentration-multiple and corrosive water, and anticorrosion, antiscale and low discharge effects of high salinity wastewater in circulating cooling water are realized.

Description

technical field [0001] The invention relates to the field of water treatment, in particular to a corrosion and scale inhibitor suitable for circulating cooling water and a preparation method thereof. Background technique [0002] With the rapid development of society, the proportion of industrial water consumption to the national water consumption is increasing year by year, and water resources are seriously in short supply. At present, the discharge of a large amount of urban sewage in my country not only pollutes the environment but also wastes reusable resources. Using biochemical treatment of urban sewage to circulate cooling water is one of the effective means to alleviate the shortage of water resources. Most circulating cooling water systems do not have very strict requirements on water quality. After the secondary biochemical treatment of urban sewage, the water quality is relatively simple, and it has great potential and broad application prospects for reuse of circ...

Claims

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Application Information

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IPC IPC(8): C02F5/14C02F5/10C02F5/08
CPCC02F5/08C02F5/105C02F5/125C02F5/145C02F2103/023C02F2303/08C02F2303/22C02F2305/04C23F11/08
Inventor 魏亮翁挺
Owner 广东顺德朗新环保有限公司
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