Phosphorus-free corrosion and scale inhibitor for treating strong corrosive water and use concentration detection method thereof

A water quality treatment, phosphorus-free corrosion inhibition technology, applied in water/sludge/sewage treatment, chemical instruments and methods, fluorescence/phosphorescence, etc., can solve the impossible application of industrial circulating cooling water, etc., to achieve good scale inhibition, The effect of strong scale inhibition and dispersion performance

Active Publication Date: 2011-06-15
MAOMING SUNION GUOSONG FINE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is impossible to find a method to measure the concentration of phosphorus-free corrosion inhibitors in circulating water, it is impossible to be applied in industrial circulating cooling water.

Method used

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  • Phosphorus-free corrosion and scale inhibitor for treating strong corrosive water and use concentration detection method thereof
  • Phosphorus-free corrosion and scale inhibitor for treating strong corrosive water and use concentration detection method thereof
  • Phosphorus-free corrosion and scale inhibitor for treating strong corrosive water and use concentration detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] A non-phosphorus corrosion and scale inhibitor for highly corrosive water treatment, which is a quaternary copolymer of polyepoxysuccinic acid, S-carboxyethylsulfosuccinic acid, long-chain alkyl polyetheramide, and AMPS substance, benzotriazole, water-soluble fluorescent compound, pH regulator, zinc salt and deionized water, and is composed of the following components by weight percentage:

[0068] Polyepoxysuccinic Acid 20%

[0069] S-Carboxyethylthiosuccinic acid 10%

[0070] Long chain alkyl polyetheramide 30%

[0071] Tetrapolymer with AMPS 15%

[0072] Benzotriazole 0.4%

[0073] Water-soluble fluorescent compound 1%

[0074] PH value adjuster 2%

[0075] Zinc salt 6%

[0076] Deionized water 15.6%.

[0077] Specifically, the tetrapolymer containing AMPS is a phosphorus-free copolymer having sulfonic acid groups, carboxylic acid groups, hydroxyl groups and ether bond functional groups. Described AMPS is specifically 2-acrylamido-2-methylpropanesulfonic acid...

Embodiment 2

[0085] An application of a non-phosphorus corrosion and scale inhibitor for highly corrosive water treatment, the non-phosphorus corrosion and scale inhibitor for highly corrosive water treatment in Example 1 is applied to industrial circulating cooling water, the application Phosphorus-free corrosion and scale inhibitors for highly corrosive water treatment can be used at a concentration of 100-150mg / L in industrial circulating cooling water. The fluorescence intensity can be detected with a CRT970 fluorescence spectrometer. When the EM slit is set to 10nm, the EX slit is 10nm, the sensitivity is 3, the EM wavelength is 530nm, and the EX wavelength is 390nm, the above-mentioned intensity of 100mg / L can be measured. The relative fluorescence intensity value (INT) of the non-phosphorus corrosion and scale inhibitor for corrosive water treatment is 400, which meets the detection requirements.

Embodiment 3

[0087] A kind of phosphorus-free corrosion and scale inhibitor for strong corrosive water treatment, by weight percentage, consists of the following components:

[0088] Polyepoxysuccinic Acid 45%

[0089] S-Carboxyethylthiosuccinic acid 5.5%

[0090] Long chain alkyl polyetheramide 6%

[0091] Tetrapolymer with AMPS 10%

[0092] Water-soluble fluorescent compound 1%

[0093] Benzotriazole 0.5%

[0094] PH value adjuster 1%

[0095] Zinc chloride 6%

[0096] Deionized water 25%.

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Abstract

The invention provides a phosphorus-free corrosion and scale inhibitor for treating strong corrosive water and application and a use concentration detection method thereof. The phosphorus-free corrosion and scale inhibitor for treating strong corrosive water comprises 20-60% by weight of polyepoxysuccinic acid, 5.5-25% by weight of S-carboxyethyl thiodisuccinic acid, 5-43% by weight of long-chain alkyl polyether amide, 10-35% by weight of quadripolymer containing AMPS (1-Acrylanmido-2-Methylpropanesulfonic Acid), 0.2-1% by weight of benzotriazole, 0.5-5% by weight of water soluble fluorescent compound, 1.5-3% by weight of pH value regulator, 0-15% by weight of zinc salt and 10-40% by weight of deionized water. The phosphorus-free corrosion and scale inhibitor has remarkable corrosion inhibition property. The concentration of the phosphorus-free corrosion and scale inhibitor can be detected by a fluorescent analysis method, and the phosphorus-free corrosion and scale inhibitor is particularly suitable for treating strong corrosive water. The phosphorus-free corrosion and scale inhibitor for treating strong corrosive water is used in industrial circulating cooling water and combined with the use concentration detection method, so that the successful application of the phosphorus-free corrosion and scale inhibitor for treating strong corrosive water in the industrial circulating cooling water becomes possible.

Description

technical field [0001] The invention relates to a water quality treatment stabilizer technology for industrial circulating cooling water systems, in particular to a phosphorus-free corrosion and scale inhibitor for highly corrosive water treatment, its application and a detection method for its concentration. Background technique [0002] 80% of industrial water in our country is circulating cooling water, saving industrial circulating cooling water is one of the keys to rational utilization of water resources. With the rapid development of science and technology, people gradually realize that increasing the concentration ratio of industrial circulating cooling water is the best way to reduce industrial water consumption and pollution discharge. Salt ratio. In the operation of industrial circulating cooling water system, the concentration ratio is an important technical and economic index to determine the recycling rate of cooling water. The higher the concentration factor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12G01N21/64
Inventor 梁汉国江灿冯泳
Owner MAOMING SUNION GUOSONG FINE CHEM
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