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Efficient water-saving phosphine-free water treatment chemical for environmental protection

A technology of water treatment agent and environmental protection water, applied in water/sludge/sewage treatment, descaling and water softening, chemical instruments and methods, etc., can solve problems such as secondary pollution, affecting popularization and application, etc., and achieve improved scale inhibition effect, remarkable corrosion inhibition effect, and the effect of inhibiting the decomposition of CaCO3

Inactive Publication Date: 2004-01-28
NAKE WATER TREATMENT TECH ZIBO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the components contain sodium tungstate or ammonium tungstate, it will cause secondary pollution to the environment, which affects its popularization and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1 The solid dispersant in the high-efficiency, water-saving, phosphine-free and environmentally friendly water treatment agent is prepared according to the raw materials in the following weight percentages:

[0068] Sodium Humate & Sulfonate Blend 50%

[0069] Tannin 30%

[0070] Cationic polyacrylamide 15%

[0071] Nonylphenol polyoxyethylene (9) ether (TX-9) 5%

[0072] Among them, the sulfonate is a copolymer of 2-acrylamide-2-methylpropanesulfonic acid and sodium acrylate, sodium humate accounts for 80% of the total weight of the blend, and the commercially available grade of polyacrylamide used is FA- 107.

[0073] Prepare the liquid corrosion inhibitor according to the following raw materials and weight percentage:

[0074] Acrylic acid-2-acrylamide-2-methylpropanesulfonic acid polypolymer (AA / AMPS) 80%

[0075] Corrosion inhibitor 20%

[0076] The corrosion inhibitor is prepared from tolutriazole (TTA) and benzotriazole (BTA) in a weight ratio of...

Embodiment 2

[0078] Example 2 The components and weight ratio of the solid dispersant in the high-efficiency, water-saving, phosphine-free and environmentally friendly water treatment agent are as follows:

[0079] Sodium Humate 40%

[0080] Tannins 25%

[0081] Anionic polyacrylamide 25%

[0082] Octylphenol ethoxylate 10%

[0083] The composition and weight ratio of the liquid corrosion inhibitor are:

[0084] Acrylic acid-2-acrylamide-2-methylpropanesulfonic acid polypolymer (AA / AMPS) 70%

[0085] Corrosion inhibitor 30%

[0086] The corrosion inhibitor is tolutriazole (TTA).

[0087] When in use, dissolve the solid dispersant first, then mix it with the liquid corrosion inhibitor, and add it to the circulating cooling water system continuously for 24 hours. The temperature of the water is controlled at 40-80°C.

Embodiment 3

[0088] Example 3 The components and weight ratio of the solid dispersant in the high-efficiency, water-saving, phosphine-free and environmentally friendly water treatment agent are as follows:

[0089] Sodium Humate & Sulfonate Blend 60%

[0090] Tannin 20%

[0091] Non-ionic polyacrylamide 10%

[0092] Nonylphenol polyoxyethylene (9) ether 10%

[0093] The sulfonate is a copolymer of sodium propylene sulfonate and acrylic acid, and sodium humate accounts for 70% of the total weight of the blend.

[0094] The composition and weight ratio of the liquid corrosion inhibitor are:

[0095] Acrylic acid-2-acrylamide-2-methylpropanesulfonic acid polypolymer (AA / AMPS) 80%

[0096] Corrosion inhibitor 20%

[0097] The corrosion inhibitor is prepared from tolutriazole (TTA), benzotriazole (BTA) and zinc sulfate in a weight ratio of 3:1:1.

[0098] When in use, dissolve the solid dispersant first, then mix it with the liquid corrosion inhibitor, and add it to the circulating coolin...

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PUM

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Abstract

The water treatment agent is formed from solid dispersing agent and liquid corrosion inhibitor, and its main component includes sodium humate, acrylic acid-2-acrylamide-2-methyl propylsulfoacid multicomponent copolymer and tannic acid. Said solid dispersing agent is straw colour to black colour solid which is composed of mixture of sodium humate and sulfonate, tannic acid, acidamide flocculant and surfactant, and said liquid corrosion inhibitor is formed from acrylic acid-2-acrylamide-2-methyl propylsulfoacid multicomponent copolymer and corrosion inhibitor. Its water-saving efficiency is high and corrosion and scale inhibiting effect is obvious.

Description

technical field [0001] The invention belongs to the technical field of anti-scaling agent or descaling agent added to water for water softening and anti-scaling, and in particular relates to a phosphine-free water-saving circulating water treatment agent. Background technique [0002] In electric power, chemical industry, metallurgy, and other industrial circulating cooling water systems, due to the dissolved oxygen and carbon dioxide in the circulating water, the decomposition of carbonate and bicarbonate also produces carbon dioxide, which will corrode the metal surface of the conveying equipment and pipelines; At the same time, due to the generation of insoluble matter in water and calcium carbonate precipitation, scaling will occur on the inner wall of the conveying equipment and pipeline. This not only reduces the service life of the circulation conveying equipment, but also seriously affects the production efficiency and normal production. [0003] Since the 1930s, wa...

Claims

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Application Information

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IPC IPC(8): C02F5/12
Inventor 王建平
Owner NAKE WATER TREATMENT TECH ZIBO
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