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Tungstate dirt dispersion agent

A technology of scale inhibitor and dispersant, tungstate, applied in descaling and water softening, complex/solubilizer treatment, water/sludge/sewage treatment, etc. Reduce the heat transfer effect of the pipeline and other problems 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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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: because water is often used in industry to cool large machines and pipelines, but with the shortage of water resources, water resources need to be recycled. A small amount of insoluble salt in the water is easy to deposit on the pipeline or machine to form inorganic salt scale, which will reduce the service life of the machine and reduce the heat transfer effect of the pipeline. In the prior art, lignin and humic acid are often used Sodium and other natural substances are used to maintain the stability of water quality, but these polymers are easily degraded by microorganisms and have poor scale inhibition effect

Method used

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Embodiment Construction

[0016] A kind of tungstate antiscaling dispersant of the present invention, described dispersant is made up of sodium tungstate, sodium gluconate, organic phosphonate, polycarboxylic acid, benzotriazole and water, wherein, each component The weight percentages are as follows:

[0017] Sodium tungstate: 20% to 30%,

[0018] Sodium gluconate: 20% to 30%,

[0019] Organic phosphonates: 10% to 15%,

[0020] Polycarboxylic acid: 3% to 4%,

[0021] Benzotriazole: 8% to 12%,

[0022] Water: 25% to 35%.

[0023] The object of the present invention is also to provide a method for using tungstate scale inhibitor dispersant, which is compounded with zinc salt.

[0024] Another object of the present invention is to provide a method for using the tungstate anti-scaling dispersant, which is compounded with zinc chloride to 8%-12%.

[0025] Another object of the present invention is to provide the application of the tungstate antiscaling and dispersing agent in industrial water treatme...

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Abstract

The invention provides a tungstate anti-scaling disperser, which comprises sodium tungstate, sodium glucoheptonate, organic phosphate, polycarboxylic acid, benzotrizaole and water, the invention also provides a method for using the tungstate anti-scaling disperser, which comprises compounding with zinc chloride to 8-12%. The invention can achieve an inhibition rate higher than 95% when applied to recirculated cooling water systems.

Description

Technical field: [0001] The invention relates to a chemical reagent for industrial water treatment, in particular to a scale-inhibiting dispersant, in particular to a tungstate scale-inhibiting dispersant. Background technique: [0002] In industry, water is often used to cool large machines and pipelines. However, with the shortage of water resources, water resources need to be recycled. Because of the metal ions in the water, in the long-term high-temperature cycle, traces of insoluble salts in the water are easy to Deposited on the pipeline or machine to form inorganic salt scale, inorganic salt scale will reduce the service life of the machine and reduce the heat transfer effect of the pipeline. In the prior art, some natural polymers, such as lignin and sodium humate, are often used to Keep the water quality stable, but these polymers are easily degraded by microorganisms, and the scale inhibition effect is poor. Invention content: [0003] The technical problem to b...

Claims

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Application Information

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IPC IPC(8): C02F5/08C02F5/12C02F5/14
Inventor 沈志昌
Owner SHANGHAI WANSEN WATER TREATMENT CO LTD
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