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A fluorescent type phosphorus-free scale inhibitor

A phosphorus-free scale inhibitor, fluorescent technology, used in descaling and water softening, chemical instruments and methods, water/sludge/sewage treatment, etc. Scaling, difficult agent concentration and other problems, to achieve excellent scale inhibition performance, solve the scaling problem, and avoid the effect of eutrophication

Active Publication Date: 2022-08-05
XINJIANG DELAND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The concentration of calcium and magnesium ions in industrial circulating cooling water will cause scaling of system equipment and pipelines during operation. Adding scale inhibitors can solve this problem very well, but the use of phosphorus scale inhibitors will cause The eutrophication of water quality causes environmental pollution, so it is gradually replaced by non-phosphorus scale inhibitors, and non-phosphorus scale inhibitors cannot be detected by conventional ammonium molybdate spectrophotometry because they do not contain phosphorus, so the concentration of the agent cannot be determined. Control makes it difficult

Method used

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  • A fluorescent type phosphorus-free scale inhibitor
  • A fluorescent type phosphorus-free scale inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The specific preparation process of the fluorescent phosphorus-free scale inhibitor is as follows:

[0033] 1. Batching each raw material according to the following parts by mass:

[0034] 10 parts of maleic acid-acrylic acid copolymer, 25 parts of polyepoxysuccinic acid, 15 parts of acrylic acid-sulfonic acid-amide copolymer, 18 parts of acrylic acid-acrylate-sulfonate copolymer, 8 parts of polyaspartic acid , 0.15 parts of 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt and 10 parts of water;

[0035] 2. The above raw materials were prepared according to maleic acid-acrylic acid copolymer, polyepoxysuccinic acid, acrylic acid-sulfonic acid-amide copolymer, acrylic acid-acrylate-sulfonate copolymer, polyaspartic acid, 1,3 ,6,8-Pyrene tetrasodium salt and water are added to the stirring tank in sequence, and the mixing and stirring are started;

[0036] 3. The temperature of the stirring tank is set to 70℃, normal pressure, the stirring speed is 140rpm, and the stir...

Embodiment 2

[0039] The specific preparation process of the fluorescent phosphorus-free scale inhibitor is as follows:

[0040] 1. Batching each raw material according to the following parts by mass:

[0041] 15 parts of maleic acid-acrylic acid copolymer, 20 parts of polyepoxysuccinic acid, 20 parts of acrylic acid-sulfonic acid-amide copolymer, 12 parts of acrylic acid-acrylate-sulfonate copolymer, 12 parts of polyaspartic acid , 0.1 part of 1,3,6,8-pyrenetetrasulfonic acid tetrasodium salt and 15 parts of water;

[0042] 2. The above raw materials were prepared according to maleic acid-acrylic acid copolymer, polyepoxysuccinic acid, acrylic acid-sulfonic acid-amide copolymer, acrylic acid-acrylate-sulfonate copolymer, polyaspartic acid, 1,3 ,6,8-Pyrene tetrasodium salt and water are added to the stirring tank in sequence, and the mixing and stirring are started;

[0043] 3. The temperature of the stirring tank is set to 50℃, normal pressure, the stirring speed is 100rpm, and the stirr...

Embodiment 3

[0046] The specific preparation process of the fluorescent phosphorus-free scale inhibitor is as follows:

[0047] 1. Batching each raw material according to the following parts by mass:

[0048]11 parts of maleic acid-acrylic acid copolymer, 24 parts of polyepoxysuccinic acid, 17 parts of acrylic acid-sulfonic acid-amide copolymer, 17 parts of acrylic acid-acrylate-sulfonate copolymer, 9 parts of polyaspartic acid , 0.15 parts of 1,3,6-naphthalene trisulfonic acid trisodium salt and 11 parts of water;

[0049] 2. The above raw materials were prepared according to maleic acid-acrylic acid copolymer, polyepoxysuccinic acid, acrylic acid-sulfonic acid-amide copolymer, acrylic acid-acrylate-sulfonate copolymer, polyaspartic acid, 1,3 , The order of 6-naphthalene trisulfonic acid trisodium salt and water is successively added in the stirring tank, and the mixing and stirring are started;

[0050] 3. The temperature of the stirring tank is set to 60℃, normal pressure, the stirrin...

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Abstract

The invention provides a fluorescent type phosphorus-free scale inhibitor and a preparation method thereof. The fluorescent type phosphorus-free scale inhibitor of the present invention is mainly prepared from the following raw materials: in parts by mass, maleic acid-acrylic acid copolymer 10- 15 parts, 20-25 parts of polyepoxysuccinic acid, 15-20 parts of acrylic acid-sulfonic acid-amide-based copolymer, 12-18 parts of acrylic acid-acrylate-sulfonate copolymer, 8-12 parts of auxiliary scale inhibitor , 0.1-0.15 parts of 1,3,6,8-pyrene tetrasodium salt and 10-15 parts of water. The fluorescent phosphorus-free scale inhibitor is phosphorus-free, has good stability, has certain chlorine resistance and oxidation resistance, and can be used in circulating cooling water systems in chemical, electric power, metallurgy, petrochemical, central air conditioning and other industries.

Description

technical field [0001] The invention relates to the field of preparation of a fluorescent type phosphorus-free scale inhibitor, in particular to a fluorescent type phosphorus-free scale inhibitor and a preparation method thereof. Background technique [0002] During the operation of industrial circulating cooling water, due to the concentration of calcium and magnesium ions, it will cause scaling of system equipment and pipelines. Adding scale inhibitor can solve this problem very well, but due to the use of phosphorus scale inhibitor, it will lead to scaling. The water quality is eutrophic, which causes environmental pollution, so it is gradually replaced by phosphorus-free scale inhibitors. Since phosphorus-free scale inhibitors do not contain phosphorus, they cannot be detected by conventional ammonium molybdate spectrophotometry. Control created difficulties. [0003] In view of this, the present invention is proposed. SUMMARY OF THE INVENTION [0004] The first obje...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F5/10C02F5/12
CPCC02F5/10C02F5/12
Inventor 徐进峰周林超
Owner XINJIANG DELAND
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