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Non-phosphorus environmentally-friendly corrosion-inhibition scale-inhibition dispersion agent and preparation method and application thereof

A scale inhibitor and dispersant, corrosion and scale inhibitor technology, applied in the fields of scale removal and water softening, chemical instruments and methods, complex/solubilizer treatment, etc., to achieve the effects of low cost, improved comprehensive performance, and wide application range

Inactive Publication Date: 2016-04-06
万全军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the multifunctionality of the copolymer antiscalant dispersant is realized by the combination of monomers containing different functional groups, in order to maintain its multifunctionality, these polymeric antiscalant dispersants more or less sacrifice some other properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add deionized water to the reactor, start the agitator, and add 60 parts of phosphorus-free polymer corrosion inhibitor, 10 parts of sodium carbonate, 3 parts of zinc salt, 7 parts of sodium tartrate, and 5 parts of silicic acid under stirring. Salt and 6 parts of ammonium tungstate, and stirred at room temperature for 0.2h;

[0027] (2) Add 50 parts of non-phosphorus polymer scale inhibitor and dispersant in reaction amount to the mixture in step (1), heat up to 50°C and stir for 1 hour;

[0028] (3) Add 12 parts of other ingredients to the mixture in step (2), continue to stir and react for 0.6 hours at room temperature, filter the clear liquid, and package to obtain the phosphorus-free environmental protection scale inhibitor dispersant;

[0029] Among them, the weight ratio of azoles, organic amines and salicylic acid in other ingredients is 1:1:3.

Embodiment 2

[0031] (1) Add deionized water to the reactor, start the agitator, and add 50 parts of phosphorus-free polymer corrosion inhibitor, 15 parts of sodium carbonate, 4 parts of zinc salt, 8 parts of sodium tartrate, and 6 parts of silicic acid under stirring. Salt and 5 parts of ammonium tungstate, and stir at room temperature for 0.3h;

[0032] (2) Add 45 parts of non-phosphorus polymer scale inhibitor and dispersant in reaction amount to the mixture in step (1), heat up to 40°C and stir for 2h;

[0033] (3) Add 15 parts of other ingredients to the mixture in step (2), continue to stir and react for 0.8h at room temperature, filter the clear liquid, and package to obtain a phosphorus-free environmentally friendly scale inhibitor dispersant;

[0034] Among them, the weight ratio of azoles, organic amines and salicylic acid in other ingredients is 1:0.5:2.

Embodiment 3

[0036] (1) Add deionized water to the reactor, start the agitator, add 80 parts of phosphorus-free polymer corrosion inhibitor, 20 parts of sodium carbonate, 4 parts of zinc salt, 9 parts of sodium tartrate, 7 parts of silicic acid under stirring. Salt and 8 parts of ammonium tungstate, and stir for 0.5h at room temperature;

[0037] (2) Add 60 parts of non-phosphorus polymer scale inhibitor and dispersant in reaction amount to the mixture in step (1), heat up to 45°C and stir for 1.5 hours;

[0038] (3) Add 15 parts of other ingredients to the mixture in step (2), continue to stir and react for 0.8h at room temperature, filter the clear liquid, and package to obtain a phosphorus-free environmentally friendly scale inhibitor dispersant;

[0039] Among them, the weight ratio of azoles, organic amines and salicylic acid in other ingredients is 1:1.5:4.

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PUM

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Abstract

The invention provides a non-phosphorus environmentally-friendly corrosion-inhibition scale-inhibition dispersion agent and a preparation method and application thereof. The non-phosphorus environmentally-friendly corrosion-inhibition scale-inhibition dispersion agent is prepared from 30-60 parts of non-phosphorus polymer scale-inhibition dispersion agent, 40-80 parts of non-phosphorus polymer corrosion-inhibition agent, 10-20 parts of sodium carbonate, 2-5 parts of zinc salt, 6-10 parts of sodium tartrate, 2-8 parts of silicate, 4-8 parts of ammonium tungstate and 10-15 parts of other components, wherein the other components are composed of azoles, organic amine and salicylic acid. The scale-inhibition dispersion agent has the good characteristics of being free of phosphorus and environmentally friendly; in addition, the non-phosphorus scale-inhibition dispersion agent has excellent scale-inhibition dispersion capacity for calcium carbonate and calcium phosphate and has the capacity for dispersing ferric oxide and stabilizing zinc salt.

Description

Technical field [0001] The invention relates to the technical field of water treatment, and more specifically, to water treatment reagents, in particular to a non-phosphorus environmental protection corrosion and scale inhibitor dispersant, and a preparation method and application thereof. Background technique [0002] With the scale of industrial production and the rapid increase in population, water resources are severely scarce. The amount of circulating cooling water accounts for 60%-70% of industrial water, and reasonable saving of circulating cooling water is the most direct way to reduce industrial water consumption. The main way to save circulating cooling water is to increase the circulating utilization rate of circulating cooling water, that is, increase the concentration ratio, but this will bring serious corrosion and scaling problems to the circulating water system, which puts forward a higher level of water treatment technology. Claim. In order to ensure the norma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C02F5/08C02F5/12
CPCC02F5/105C02F5/125C02F2303/08C02F2303/22C23F11/08C23F11/173C23F14/02
Inventor 万全军
Owner 万全军
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