Dirt dispersion agent

A technology of scale inhibitor dispersant and dispersant, which is applied in the field of scale inhibitor dispersant and daily maintenance agent to achieve the effect of improving the corrosion inhibition rate

Inactive Publication Date: 2006-09-27
SHANGHAI WANSEN WATER TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The emergence of organic phosphonic acid scale and corrosion inhibitors has solved the problems of corrosion and calcium carbonate scaling in the operation of industrial water systems. However, under harsh water quality conditions, calcium phosphate scale and alkaline Many problems such as zinc scale in the water treatment scheme and other fouling that may be formed under the condition of high concentration ratio cannot be solved by using only organic phosphonate

Method used

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Examples

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Embodiment Construction

[0020] A kind of antiscaling dispersant of the present invention, described dispersant is made of acrylic acid-acrylic acid ester-sulfonate copolymer, acrylic acid-acrylic acid hydroxypropyl ester-AMPS copolymer, maleic anhydride-acrylic acid copolymer, zinc chloride and water Composition, wherein, the weight percent of each component is as follows:

[0021] Acrylic acid-acrylate-sulfonate copolymer: 20%~30%

[0022] Acrylic acid-hydroxypropyl acrylate-AMPS copolymer: 30%~40%

[0023] Maleic anhydride-acrylic acid copolymer: 10%~15%

[0024] Zinc chloride: 3% to 4%

[0025] Water: 25%~35%

[0026] The object of the present invention is also to provide the usage method of described antiscaling and dispersing agent, when the present invention is used, can compound use with zinc salt, also can compound use with zinc chloride to 8%-12%, the present invention also It can be used in combination with organic phosphonate antiscaling and corrosion inhibitors. It can be used in cool...

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Abstract

The invention provides an anti-scaling disperser, which comprises acroleic acid-acrylate-petroleum sulfonate copolymer, acrylic acid-2-hydroxypropyl acrylate-AMPS copolymer, maleic anhydride-acrylic acid copolymer, zinc chloride and water, the invention also provides the use of the anti-scaling disperser in industrial water treatment systems. The formulation of the invention can be charged by zinc salts for the treatment of low-medium hardness water, and to increase the inhibition rate of the formulation.

Description

Technical field: [0001] The invention relates to a chemical reagent for waste water treatment, in particular to a daily maintenance agent used in the daily operation of central air-conditioning circulating cooling water and industrial circulating cooling water systems, specifically a scale inhibitor and dispersant. Background technique: [0002] During the daily operation of the central air-conditioning circulating cooling water and industrial circulating cooling water systems, inorganic salt scales are likely to be generated, and the formation of inorganic salt scales will reduce the heat transfer effect of the water system. Natural compounds, such as starch, lignin, etc., were earlier used to reduce inorganic salt scale in water treatment systems. With the development of cooling water from a once-through system to an open circulation system, technologies such as acid addition and flue gas stabilized calcium carbonate have been adopted. Langelier, Ryznar, etc. have proposed...

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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