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Antioxidant corrosion-proofing and antisludging agent of boiler

A corrosion and scale inhibitor, anti-oxidation technology, applied in scale removal and water softening, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of different materials of boiler system equipment, and achieve low raw material prices , High anti-oxidation efficiency, low corrosion effect

Inactive Publication Date: 2006-11-01
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the current corrosion and scale inhibitors have better corrosion inhibition effects, most of the effective corrosion and scale inhibitors have a certain degree of specificity, that is, they only have corrosion inhibition for certain types of acids and certain types of metals.
And none of them is specifically for boiler systems, and the equipment materials of boiler systems are generally different from other industrial circulation equipment

Method used

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Examples

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Embodiment Construction

[0017] As a preferred mode of the present invention, the following formula (weight percentage) is used to prepare the anti-oxidation boiler corrosion and scale inhibitor of the present invention:

[0018] Hydroxyethylidene diphosphate: 18%;

[0019] Sodium hydroxide: 3%;

[0020] Sodium humate: 1%;

[0021] Herotropine: 30%;

[0022] Benzotriazole: 20%;

[0023] Sodium silicate: 28%.

[0024] At 25°C, use the anti-oxidation boiler corrosion and scale inhibitor prepared above in the present invention to carry out corrosion and scale inhibition treatment on the boiler, and the treatment is completed after 20 hours.

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PUM

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Abstract

An anti-oxidative boiler slow-releasing scale inhibitor consists of hydroxyl-ethylene phosphoric acid 15-20%, sodium hydrate 3-4%, sodium humate 0.1-1%, urotropine 25-35%, benzotriazole 10-25% and sodium silicate 20-30%. It is cheap, has better corrosive-resistant performance and higher anti-oxidative efficiency.

Description

technical field [0001] The invention belongs to the fields of chemical industry and environmental protection, and relates to a boiler water treatment agent. Furthermore, the invention relates to an anti-oxidation boiler corrosion and scale inhibitor. Background technique [0002] At present, the chemical cleaning and scale inhibition of general boiler systems are mainly carried out with certain acids or acid salts, among which hydrochloric acid is the most used for cleaning. Acids are effective in cleaning away hard scale formed in boiler equipment and corrosion products consisting of metal oxides. These acids react with metal carbonates or oxides to convert them to soluble metal salts. Alkali cleaning is a type of cleaning agent that uses strong alkaline or alkaline chemicals as cleaning agents to loosen, emulsify and disperse deposits in metal equipment, such as sodium hydroxide, sodium carbonate, disodium hydrogen phosphate and sodium silicate. Therefore, it can be seen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/12C02F5/14
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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