Non-phosphorus scale inhibition dispersant and application thereof

A phosphorus-free scale inhibitor and dispersant technology, applied in scale removal and water softening, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve excessive drainage, large waste of water resources, waste of water resources, etc. problem, to achieve the effect of enhanced polarity, excellent corrosion inhibition performance, and corrosion prevention

Active Publication Date: 2013-12-25
CHANGZHI GREENWATER ENVIRONMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Secondly, when the concentration ratio is 2-3, there will be more drainage and a greater waste of water resources
[0006] Since the 1990s, non-phosphorous green phosphorus-free scale inhibitors polyaspartic acid (PASP) and polyepoxysuccinic acid (PESA) with biodegradable properties have been developed both at home and abroad, alth

Method used

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  • Non-phosphorus scale inhibition dispersant and application thereof
  • Non-phosphorus scale inhibition dispersant and application thereof
  • Non-phosphorus scale inhibition dispersant and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A phosphorus-free scale inhibitor dispersant, which is characterized in that it is mixed from the following raw materials: 1) sodium carbonate, 2) acrylic acid / 2-acrylamide-2-methacrylic acid copolymer, 3) polymaleic acid Acid anhydride, 4) natural organic polymer substance, 5) zinc salt, 6) polyacrylamide, 7) other components, the mass percentage of each raw material is:

[0030]

[0031] The other ingredients are sodium carboxymethylcellulose and dodecylamine; the zinc salt is zinc chloride; and the natural organic polymer is a mixture of sodium gluconate and tannin.

[0032] The above-mentioned non-phosphorous scale inhibitor dispersant is applied to circulating cooling water, and 65 mg of non-phosphorous scale inhibitor dispersant is added to each liter of circulating cooling water.

Embodiment 2

[0034] A phosphorus-free scale inhibitor dispersant, which is characterized in that it is mixed from the following raw materials: 1) sodium carbonate, 2) acrylic acid / 2-acrylamide-2-methacrylic acid copolymer, 3) polymaleic acid Acid anhydride, 4) natural organic polymer substance, 5) zinc salt, 6), polyacrylamide, 7) other components, the mass percentage of each raw material is:

[0035]

[0036] The other ingredients are sodium carboxymethylcellulose and dodecylamine; the zinc salt is zinc chloride; and the natural organic polymer is sodium gluconate.

[0037] The above-mentioned non-phosphorous scale inhibitor dispersant is applied to circulating cooling water, and 60 mg of non-phosphorous scale inhibitor dispersant is added to each liter of circulating cooling water.

Embodiment 3

[0039] A phosphorus-free scale inhibitor dispersant, which is characterized in that it is mixed from the following raw materials: 1) sodium carbonate, 2) acrylic acid / 2-acrylamide-2-methacrylic acid copolymer, 3) polymaleic acid Acid anhydride, 4) natural organic polymer substance, 5) zinc salt, 6), polyacrylamide, 7) other components, the mass percentage of each raw material is:

[0040]

[0041] The other components are acrylic acid-hydroxypropyl acrylate copolymer; the zinc salt is zinc sulfate; and the natural organic macromolecule is lignin and its derivatives.

[0042] The above-mentioned non-phosphorous scale inhibitor dispersant is applied to circulating cooling water, and 80 mg of non-phosphorus scale inhibitor dispersant is added per liter of circulating cooling water.

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Abstract

The invention relates to a non-phosphorus scale inhibition dispersant and the application thereof. The non-phosphorus scale inhibition dispersant is prepared by mixing the following raw materials by mass percent: 50-60% of sodium carbonate, 10-15% of polymaleic anhydride, 10-15% of acrylic acid/ 2-acrylamide-2-methyl propylene sulfonic acid copolymer, 5-10% of natural organic macromolecule material, 2-5% of zinc salt, 1-2% of polyacrylamide and 10-20% of other components. The non-phosphorus scale inhibition dispersant and the application thereof have the beneficial effects that (1) the non-phosphorus scale inhibition dispersant has good environmental protection property; (2) the non-phosphorus scale inhibition dispersant is excellent in corrosion inhibition and scale inhibition, and good in environmental protection property; (3) the deposition of Ca3 (PO4) 2 filth of a circulating water system caused by phosphorous degradation can be avoided, so that the heat transfer coefficient of a cold exchange device is improved, and the energy consumption is reduced; (4) the non-phosphorus scale inhibition dispersant is high in tolerance to Ca and alkali, can resist the corrosion of high-concentration Cl<-> and SO4 <2-> and can adapt to high potential of hydrogen (pH), thus providing a technical condition for enabling circulating water to run under the condition of high concentration multiples and reducing sewage discharge.

Description

technical field [0001] The invention relates to a phosphorus-free scale inhibitor dispersant and its application in circulating cooling water. Background technique [0002] my country is one of the countries in the world where water resources are scarce. According to reports, more than 400 of my country's 669 cities are facing insufficient water supply. With the rapid development of the economy and the growth of the population, the problems of water shortage and deterioration of water quality are becoming more and more prominent. Therefore, it is very important to save water, do a good job in water treatment, and improve the reuse rate of industrial water. On the one hand, our country is short of water resources, but on the other hand, it is wasting a lot of precious water resources. my country's urban industrial water reuse rate is only 60% on average, and developed countries generally exceed 80%. The average water intake per 10,000 yuan of industrial production value is ...

Claims

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Application Information

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IPC IPC(8): C02F5/12
Inventor 刘亚群陈燕舞
Owner CHANGZHI GREENWATER ENVIRONMENT TECH
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