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Corrosion inhibiting anti-scaling agent

The technology of a corrosion and scale inhibitor, mercaptobenzothiazole, is applied in the field of corrosion and scale inhibitor, which can solve the problem that it is difficult to completely solve the corrosion and scaling obstacles of a water treatment system, reduce the service life of the system, and it is difficult to solve the multi-material corrosion at the same time. and other problems to achieve good heat exchange effect and maintain integrity

Inactive Publication Date: 2006-01-04
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Not only is a lot of energy wasted, but also the service life of the entire system is greatly reduced due to rusting of pipes and equipment
[0003] It is difficult for a single compound corrosion and scale inhibitor to completely solve the simultaneous corrosion and scaling obstacles in the water treatment system, and it is difficult to solve the multi-material corrosion problem that may exist in the system at the same time. The synergistic effect between multiple agents must be used To meet the design requirements of the water treatment system and ensure the normal and continuous operation of the system

Method used

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Embodiment Construction

[0019] A corrosion and scale inhibitor of the present invention contains mercaptobenzothiazole, hydroxyethylidene diphosphonic acid, acrylic acid-acrylic acid ester-sulfonate copolymer, sodium humate, lignin, sodium hydroxide and water, wherein each Components are by weight percentage:

[0020] Mercaptobenzothiazole: 4% to 8%;

[0021] Hydroxyethylidene diphosphonic acid: 20% to 30%;

[0022] Acrylic acid-acrylate-sulfonate copolymer: 4% to 8%;

[0023] Sodium humate: 1% to 2%;

[0024] Lignin: 0.5% to 1%;

[0025] Sodium hydroxide: 3% to 6%;

[0026] Water: 50% to 70%.

[0027] The using method of the present invention is:

[0028] 1. The closed system rinses circularly until there is no obvious suspended matter, and the water quality is relatively clear without impurities, and then dosing from the expansion tank. For the first dosing, add 150ppm of the total water. After the first dosing, add 50ppm of the lost water every day, and then add the medicine after dissolvin...

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Abstract

The present invention belongs to the field of chemical technology, and discloses one kind of corrosion inhibiting descaling agent. The corrosion inhibiting descaling agent contains mercaptobenzothiazole, hydroxy ethylidene diphosphonic acid, acrylic acid-acrylate-sulfonate copolymer, sodium humate, lignin, sodium hydroxide and water. The corrosion inhibiting descaling agent of the present invention is suitable for central air conditioning system, cooling water system, etc. After being added into circulating water system, the corrosion inhibiting descaling agent of the present invention can form one compact protecting layer on the surface of equipment or pipeline to reach effective corrosion inhibiting and scale-preventing effect.

Description

technical field [0001] The invention belongs to the field of chemical industry, and relates to a maintenance agent for a water circulation system, more specifically, the invention relates to a corrosion and scale inhibitor. Background technique [0002] Central air-conditioning, heating system heat exchangers and other circulating water systems will inevitably produce scale and rust during long-term cycle use, resulting in an order of magnitude decline in thermal efficiency. Not only is a lot of energy wasted, but also the service life of the entire system is greatly reduced due to the rusting of pipelines and equipment. [0003] It is difficult for a single compound corrosion and scale inhibitor to completely solve the simultaneous corrosion and scaling obstacles in the water treatment system, and it is difficult to solve the multi-material corrosion problem that may exist in the system at the same time. The synergistic effect between multiple agents must be used To meet t...

Claims

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Application Information

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IPC IPC(8): C02F5/10C02F5/14
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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