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Identifiable environmentally-friendly scale and corrosion inhibitor

An environment-friendly, scale and corrosion inhibitor technology, applied in scale removal and water softening, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the difficulty of chemical concentration and poor scale and corrosion inhibition performance , Natural and biological ecological disasters and other problems, to achieve the effect of inhibiting the growth of bacteria and algae, reducing biological corrosion, and reducing erosion and corrosion

Active Publication Date: 2013-02-27
中化化工科学技术研究总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, more than 80% of users in the industrial sector use phosphorus (phosphine)-based formula water treatment agents. Sewage from industrial production enters natural water bodies, aggravating the eutrophication of water bodies, leading to frequent occurrence of red tides, and causing increasingly serious ecological disasters to nature and organisms
At the same time, some phosphorus (phosphine) formula water treatment agents have poor scale and corrosion inhibition performance in application, and it is difficult to detect (monitor) the concentration of chemicals in the control system

Method used

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  • Identifiable environmentally-friendly scale and corrosion inhibitor
  • Identifiable environmentally-friendly scale and corrosion inhibitor
  • Identifiable environmentally-friendly scale and corrosion inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Preparation of polymers containing fluorescent groups

[0035] Take the following amount of raw materials:

[0036] Maleic anhydride 29%;

[0037] Acrylic 15%;

[0038] Acrylonitrile 2%;

[0039] Hydroxyacrylate 4%;

[0040] 8-Hydroxyquinoline-5-sulfonic acid 0.5%.

[0041] Add maleic anhydride and water to the reactor, and start to heat up; then mix the rest of the reaction materials and pump them into the elevated tank; when the temperature of the reactor reaches 100°C, add the materials in the elevated tank to the reactor at a constant speed, and complete the addition within 2 hours. A polymer containing a fluorescent group is obtained.

[0042] 2. Label the preparation of environmentally friendly scale and corrosion inhibitors

[0043] Ingredients in the following parts by weight:

[0044] 20 parts of polymers containing fluorescent groups;

[0045] 40 parts of carboxylate polymers;

[0046] 2 parts of azole substances;

[0047] Compound amine substance...

Embodiment 2

[0052] 1. Preparation of polymers containing fluorescent groups

[0053] Take the following amount of raw materials:

[0054] Maleic anhydride 62%;

[0055] Acrylic 24%;

[0056] Acrylonitrile 6%;

[0057] Hydroxyacrylate 7%;

[0058] Ph-Hydroxybenzoic Acid 1%.

[0059] Add maleic anhydride and water to the reactor, and start to heat up; then mix the rest of the reaction materials and pump them into the high-level tank; when the temperature of the reactor reaches 100°C, add the materials in the high-level tank to the reactor at a uniform speed, and complete the addition in 3 hours. A polymer containing a fluorescent group is obtained.

[0060] 2. Label the preparation of environmentally friendly scale and corrosion inhibitors

[0061] Ingredients in the following parts by weight:

[0062] 25 parts of polymers containing fluorescent groups;

[0063] 30 parts of carboxylate polymers;

[0064] 2 parts of azole substances;

[0065] Compound amine substances 2 parts;

[...

Embodiment 3

[0070]1. Preparation of polymers containing fluorescent groups

[0071] Take the following amount of raw materials:

[0072] Maleic anhydride 32%;

[0073] Acrylic 20%;

[0074] Acrylonitrile 5%;

[0075] Hydroxyacrylate 6%;

[0076] 5-aminopyrazine-2-carboxylic acid 0.8%.

[0077] Add maleic anhydride and water to the reactor, and start to heat up; then mix the rest of the reaction materials and pump them into the elevated tank; when the temperature of the reactor reaches 100°C, add the materials in the elevated tank to the reactor at a constant speed, and complete the addition within 2.5 hours. A polymer containing a fluorescent group is obtained.

[0078] 2. Label the preparation of environmentally friendly scale and corrosion inhibitors

[0079] Ingredients in the following parts by weight:

[0080] 30 parts of polymers containing fluorescent groups;

[0081] 50 parts of carboxylate polymers;

[0082] 3 parts of azole substances;

[0083] 3 parts of compound amin...

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Abstract

The invention provides an identifiable phosphor (phosphine)-free scale and corrosion inhibition water treatment agent, which is prepared by compounding fluorescent group-containing polymer, carboxylate polymer dispersant, high-efficiency composite corrosion inhibitor and other raw materials in a water solution. The water treatment agent does not contain phosphor or other substances harmful to thebiological environment, has excellent scale dispersion performance under conditions of higher hardness and alkaline water quality, and has excellent corrosion inhibition performance to copper and alloy, so that the erosion-corrosion of copper and alloy can be effectively reduced. The water treatment agent has detectability under a fluorescence spectrophotometric meter, so that the water treatmenthas identifiability under a phosphor (phosphine)-free state, and the problem that concentration of a phosphor (phosphine)-free formula medicament cannot be detected and controlled in practical application can be solved.

Description

technical field [0001] The invention relates to a water treatment agent, in particular to a novel and environmentally friendly industrial circulating cooling water treatment agent which can be marked. Background technique [0002] During the long-term operation of the industrial circulating cooling water system, scaling of the equipment pipe network, breeding of bacteria and algae, and corrosion of the equipment will occur, resulting in damage or even scrapping of the equipment. In order to ensure the safe operation of the circulating cooling water system, the commonly used method is to add water quality stabilizers for scale inhibition, corrosion inhibition, sterilization and algae inhibition. At present, more than 80% of users in the industrial sector use phosphorus (phosphine)-based formula water treatment agents. Sewage from industrial production enters natural water bodies, aggravating the degree of eutrophication of water bodies, leading to frequent occurrence of red ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/12
Inventor 吴文元伍振毅董华张印辉龙义成杨建丽
Owner 中化化工科学技术研究总院有限公司
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