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Silicate-series cooling water treatment agent

A cooling water treatment, silicate technology, applied in the direction of water/sludge/sewage treatment, special treatment targets, complexes/solubilizer treatment, etc., can solve aggregation, operating life, heat exchange production efficiency decline, breeding, etc. question

Inactive Publication Date: 2015-05-27
QINGDAO WATER WORLD ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pretreatment is usually used to eliminate the insoluble substances; however, the salts in the water in the ionic state cannot be removed, and these salts will cause many problems during the operation of the system, mainly manifested in the generation and adhesion of scale, equipment damage All kinds of corrosion, the growth of microorganisms and the accumulation of slime, etc., will cause the system's operating life, heat exchange and production efficiency to decline, and even force the enterprise to stop production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] Take the preparation of 100g of silicate-based cooling water treatment agent as an example:

[0010] 35 parts of sodium silicate, 6 parts of HEDP, 1 part of borax, 9 parts of chromate, 3 parts of zinc sulfate, 1.2 parts of mercaptobenzothiazole, and the balance is water.

[0011] A preparation method of a silicate-based cooling water treatment agent is as follows: adding the above proportions of sodium silicate, HEDP, borax, chromate, zinc sulfate and mercaptobenzothiazole into a certain amount of water and stirring evenly.

[0012] In the above examples, a reasonable proportion and a suitable method are applied, and the obtained product has a good corrosion inhibition effect, and has the advantages of low toxicity, high efficiency and economy.

Embodiment 2

[0014] Take the preparation of 100g of silicate-based cooling water treatment agent as an example:

[0015] 40 parts of sodium silicate, 3.5 parts of HEDP, 1.5 parts of borax, 8.5 parts of chromate, 4.5 parts of zinc sulfate, 0.8 parts of mercaptobenzothiazole, and the balance is water.

[0016] The preparation method of the silicate cooling water treatment agent is the same as that of Example 1.

[0017] In the above-mentioned embodiments, the mass fraction of each substance is changed, so that the obtained product has higher scale and corrosion inhibition performance, and can effectively protect metal components.

Embodiment 3

[0019] Take the preparation of 100g of silicate-based cooling water treatment agent as an example:

[0020] 45 parts of sodium silicate, 4.5 parts of HEDP, 2 parts of borax, 9 parts of chromate, 5 parts of zinc sulfate, 1.2 parts of mercaptobenzothiazole, and the balance is water.

[0021] In the above-mentioned embodiments, by changing the mass fraction of each substance, the product has a good effect of corrosion and scale inhibition on metal parts.

[0022] In summary, the present invention has a good corrosion inhibition effect, is suitable for cooling water treatment using carbon steel, stainless steel, steel, etc. as heat exchange equipment, has high scale and corrosion inhibition performance, and has low toxicity, Efficient and economical features.

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PUM

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Abstract

The invention discloses a silicate-series cooling water treatment agent which is prepared from following components, by mass, 30-50 parts of sodium silicate, 2-6 parts of HEDP, 1-2 parts of borax, 8-10 parts of chromate, 2-5 parts of zinc sulfate, 0.8-2 parts of mercaptobenzothiazole and the balanced water. The water treatment agent is better in corrosion inhibiting effect, is suitable for treating cooling water in heat exchangers with carbon steel, stainless steel and steel as materials, is high in performances of scale and corrosion inhibition, is low in toxin, is high in efficiency and is economical.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a silicate-based cooling water treatment agent. Background technique [0002] Industrial cooling circulating water system contains many impurities, such as various suspended solids, colloids and dissolved substances. Pretreatment is usually used to eliminate the insoluble substances; however, the salts existing in the water in the ionic state cannot be removed, and these salts will cause many problems during the operation of the system, mainly manifested as the generation and adhesion of scale, equipment damage All kinds of corrosion, the growth of microorganisms and the accumulation of slime, etc., will cause the system's operating life, heat exchange and production efficiency to decline, and even force the enterprise to stop production. [0003] Cooling water towers, chillers, circulating water condensing systems, etc., need to be effectively cleaned after long-ter...

Claims

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Application Information

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IPC IPC(8): C02F5/08C23F11/16
CPCC02F5/125C02F2303/08C02F2303/22C23F11/165
Inventor 徐苹张欣
Owner QINGDAO WATER WORLD ENVIRONMENTAL PROTECTION TECH
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