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Scale and corrosion inhibitor for treating circulating cooling water

A scale and corrosion inhibitor, treatment cycle technology, applied in water/sludge/sewage treatment, descaling and water softening, chemical instruments and methods, etc., can solve corrosion perforation, corrosion bacteria and algae, and efficiency reduction of heat exchange equipment and other problems, to achieve the effect of less dosage, stability at high temperature, and low cost

Inactive Publication Date: 2011-07-27
HUBEI ZO TAI ENVIRONMENT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the recycling process of industrial cooling water, there will be different degrees of inorganic salt deposition, corrosion, bacteria and algae growth and other problems, resulting in serious consequences such as reduced efficiency of heat exchange equipment, blockage, corrosion and perforation, and bring great hidden dangers to industrial production. , and water treatment chemicals are based on the water quality requirements of different systems to form the best water treatment formula and corresponding supporting treatment technologies to stabilize the water quality, so as to meet the requirements of different industrial systems and drainage, and ensure the normal operation of the system

Method used

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  • Scale and corrosion inhibitor for treating circulating cooling water
  • Scale and corrosion inhibitor for treating circulating cooling water
  • Scale and corrosion inhibitor for treating circulating cooling water

Examples

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Effect test

example 2

[0025] Example 2, PESA 12%, sodium gluconate 15%, methyl benzotriazole 3%, imidazoline 1%, deionized 68%.

example 3

[0026] Example 3, PESA 15%, sodium gluconate 18%, methyl benzotriazole 3%, imidazoline 5%, deionized 59%.

[0027] Example 4, PASP 10%, sodium gluconate 10%, methyl benzotriazole 3%, imidazoline 5%, deionization 72%.

[0028] 2. The ratio of ZT-305B: PASP or PESA 15-30%, sodium gluconate 15-25%, methyl benzotriazole 0.15-3%, imidazoline 1-5%, deionized water balance.

example 1

[0029] Example 1, PASP 15%, sodium gluconate 15%, methyl benzotriazole 0.15%, imidazoline 2%, deionized 67.85%.

[0030] Example 2, PESA 18%, sodium gluconate 18%, methyl benzotriazole 1%, imidazoline 5%, deionized 58%.

[0031] Example 3, PESA 20%, sodium gluconate 22%, methyl benzotriazole 3%, imidazoline 5%, deionized 48%.

[0032] Example 4, PASP 25%, sodium gluconate 25%, methyl benzotriazole 4%, imidazoline 1%, deionized 45%.

[0033] 3. The ratio of ZT-305C: PASP or PESA 18-30%, sodium gluconate 18-30%, methyl benzotriazole 0.15-3%, imidazoline 1-5%, deionized water balance.

[0034] Example 1, PASP 20%, sodium gluconate 18%, methyl benzotriazole 0.15%, imidazoline 1%, deionized 58.85%.

[0035] Example 2, PESA 18%, sodium gluconate 20%, methyl benzotriazole 2%, imidazoline 3%, deionized 57%.

[0036] Example 3, PESA 25%, sodium gluconate 20%, methyl benzotriazole 3%, imidazoline 5%, deionized 47%.

[0037] Example 4, PASP 30%, sodium gluconate 25%, methyl benzotria...

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Abstract

The invention relates to a scale and corrosion inhibitor for treating circulating cooling water, which is prepared from the following components in percentage by weight: 10 to 35 percent of polyaspartic acid (PASP) or polyepoxysuccinic acid, 10 to 35 percent of sodium gluconate, 0.15 to 3 percent of methyl benzotriazole, 1 to 5 percent of imidazoline and deionized water. The polyaspartic acid (PASP) or the polyepoxysuccinic acid (PESA) with biodegradability serving as a main body is compounded with the deionized water, the methyl benzotriazole, the sodium gluconate and the imidazoline to form a phosphorus-free product; the sodium gluconate has good synergy with the methyl benzotriazole and the imidazoline, so the scale and corrosion inhibiting effect is good, and scale formation, corrosion and bacteria and algae propagation of the circulating water can be effectively prevented; and when the added mass concentration is 20mg / L, the corrosion rate is 0.0561mm / a. Under the same water quality condition, the scale and corrosion inhibitor has low adding concentration, low adding quantity and low cost compared with other like products; and the scale and corrosion inhibitor is stable at a high temperature, has certain chlorine resistance and oxidation resistance, can ensure that a system has no scale or corrosion or the like, and can be adapt to the water quality of various complex severe working conditions.

Description

technical field [0001] The invention relates to a phosphorus-free scale and corrosion inhibitor for treating circulating cooling water. Background technique [0002] During the recycling process of industrial cooling water, there will be different degrees of inorganic salt deposition, corrosion, bacteria and algae growth and other problems, resulting in serious consequences such as reduced efficiency of heat exchange equipment, blockage, corrosion and perforation, and bring great hidden dangers to industrial production. , and water treatment chemicals are based on the water quality requirements of different systems to form the best water treatment formula and corresponding supporting treatment technologies to stabilize the water quality, so as to meet the requirements of different industrial systems and drainage, and ensure the normal operation of the system. [0003] my country's industrial circulating cooling water treatment technology is gradually improving, and the formu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12
Inventor 印德钊陈嘉汪云鹏张常斌
Owner HUBEI ZO TAI ENVIRONMENT TECH
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