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Polynary composite water treatment agent

A water treatment agent, multi-component compound technology, applied in water/sludge/sewage treatment, descaling and water softening, chemical instruments and methods, etc., can solve the problem of low dosage, no chemical synergy, and no effective comprehensive Scale and corrosion inhibition and stability issues

Active Publication Date: 2005-01-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For water with higher hardness and alkalinity (hardness or alkalinity > 200mg / L, hardness or alkalinity is measured by CaCO 3 Although there are many water treatment formulas, the main problems are: 1) The selected components and component ratios do not reflect the synergy of the agents; 2) The selection of components does not effectively reflect the requirements of comprehensive scale and corrosion inhibition and stability; 3) It should conform to the trend of environmental protection, so that the drainage should be as phosphorus-free or low-phosphorus as possible, and the chemicals should be low or non-toxic; 4) It should be Reflect the principle of low volume and high efficiency

Method used

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  • Polynary composite water treatment agent
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  • Polynary composite water treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The types and amounts of the terpolymer containing sulfonic acid groups, organic phosphoric acid, zinc salt, and metal corrosion inhibitor were changed to carry out Examples 1-7, and the raw material ratio and test results are shown in Table 2.

[0010] Table 2 Raw material ratio and test results

[0011] serial number

corrosion rate

mm / a

Scale inhibition rate

%

Pharmacy ratio

Example 1

0.040

80.6

AA / AMPS / HPA:HEDP:Zn 2+ =20:6:1

Example 2

0.019

87.20

AA / AMPS / HPA:HEDP:Zn 2+ =30:5:1

Example 3

0.040

81.60

AA / AMPS / HPA:PBTCA:Zn 2+ =20:10:1

Example 4

0.040

80.36

AA / AMPS / AM:HEDP:Zn 2+ =20:8:1

Example 5

0.037

80.23

AA / AMPS / AMPP:HEDP:Zn 2+ =20:5:1

Example 6

0.023

91.80

AA / AMPS / HPA:HEDP:BTA:Zn 2+ =30:5:1:1

Example 7

0.030

...

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PUM

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Abstract

The invention relates to a polynary composite water treatment agent which mainly comprises terpolymer containing sulfonic acid radicals, organophosphorus acids, zinc salts and metal inhibitors, wherein the effective concentration weight ratio being 20-40 : 1-10 : 0.5-4 : 0-3.

Description

technical field [0001] The invention relates to a multi-component composite water treatment agent, in particular to an industrial circulating water treatment agent mainly composed of a terpolymer. Background technique [0002] In the industry, water treatment agents are generally added to cooling water to reduce corrosion and scaling. For water with higher hardness and alkalinity (hardness or alkalinity > 200mg / L, hardness or alkalinity is measured by CaCO 3 Although there are many water treatment formulas, the main problems are: 1) The selected components and component ratios do not reflect the synergy of the agents; 2) The selection of components does not effectively reflect the requirements of comprehensive scale and corrosion inhibition and stability; 3) It should conform to the trend of environmental protection, so that the drainage should be as phosphorus-free or low-phosphorus as possible, and the chemicals should be low or non-toxic; 4) It should be Reflect the ...

Claims

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Application Information

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IPC IPC(8): C02F5/14
CPCC23F11/08
Inventor 马光伟魏存发吕红史小云王素珍梁宝峰王树勖陈萍
Owner PETROCHINA CO LTD
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