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Green environment-protective composite slow-corrosion scale resistor for circulated cooling-water treatment

A technology of corrosion and scale inhibitor and circulating cooling water, which is applied in the field of environmental protection, can solve the problems of restricting the popularization and application of polyepoxysuccinic acid and polyaspartic acid, achieve good scale inhibition and dispersion performance, easy to use, and reduce the use of effect of concentration

Inactive Publication Date: 2006-10-25
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This limits the popularization and application of polyepoxysuccinic acid and polyaspartic acid, especially the compounding of polyepoxysuccinic acid and polyaspartic acid as a water treatment agent for circulating cooling water, and as both a scale inhibitor and a slowing agent. Etching method has not been reported

Method used

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  • Green environment-protective composite slow-corrosion scale resistor for circulated cooling-water treatment
  • Green environment-protective composite slow-corrosion scale resistor for circulated cooling-water treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～16

[0069] Table 10 is PESA, PASP, HPMA, GluNa, Zn 2+ The corrosion inhibition synergistic effect of the five-component compound formula composed of five components, it can be seen that PESA, PASP, HPMA, GluNa, Zn 2+ There is a good corrosion inhibition synergistic effect when used in combination with five components, which is obviously better than the binary compound formula composed of any two components (comparative examples 1 to 45), and also better than any four components among them. Corrosion inhibition effect of quaternary compound formula (comparative examples 46-86).

[0070]

example

PESA

mg·L -1

PASP

mg·L -1

HPMA

mg·L -1

GluNa

mg·L -1

Zn 2+

mg·L -1

R

mm·a -1

n

100%

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Example 9

Example 10

Example 11

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PUM

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Abstract

The invention belongs to the environmental protection field, concretely relating to a green environmental-protection composite corrosion inhibition antifouling agent for water circulating cooling, compounded of antifouling dispersants and corrosion inhibitors: polyepoxy sodium succinate, polymerized sodium aspartate, hydrolyzed polymaleic anhydride, sodium gluconate, zinc salt, in the mass ratio of 1-6 to 1-4 to 2-6 to 1-2 to 1-2. And it has characters of no phosphorus and biodegradability, an environment-friendly water quality stabilizer, used in a water-circulating cooling system to play the role in corrosion inhibition and antifouling.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a green and environment-friendly composite corrosion and scale inhibitor for circulating cooling water treatment. Background technique [0002] Although circulating cooling water treatment technology is a technology developed to solve environmental problems, it has played a very important role in saving water, saving energy and reducing consumption, ensuring the safe and stable operation of industrial production equipment, and solving the global problem of water resource depletion, but at the same time The use of circulating water treatment chemicals also has a certain impact on the environment. [0003] As early as the early 1930s, inorganic polyphosphates such as sodium tripolyphosphate and sodium hexametaphosphate were used to solve the problems of scaling, clogging and corrosion in urban water supply systems, but the effects of scale and corrosion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/08
Inventor 张冰如李风亭
Owner TONGJI UNIV
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