Environment-friendly water treatment agent capable of realizing fluorescence tracing, and preparation method thereof

A technology of fluorescent tracer and water treatment agent, applied in water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Glue and other problems, to achieve the effect of on-line detection and automatic drug delivery, green and environment-friendly preparation process, simple and convenient operation

Inactive Publication Date: 2018-01-16
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These inorganic salt scales will deposit on the surface of the pipeline, and accumulate over time, narrowing the fluid flow channel in the pipeline, and even completely blocking the pipeline in severe cases, reducing the cooling efficiency of the cooling water, and even causing the temperature of the reactor to go out of control, causing explosions, etc. security incident
[0003] In order to suppress the generation of these inorganic calcium scales in the industry, appropriate water treatment agents are generally added, such as PBTC, ATMP, etc. commonly used in the market, but these scale inhibitors contain phosphorus elements that are harmful to the environment. With the national environmental protection Increasingly stringent, these phosphorus-containing antiscalants will be phased out
At present, some scientific research institutes have begun to develop phosphorus-free scale inhibitors, such as commonly used PAA, PESA, etc. These scale inhibitors do not contain phosphorus and are environmentally friendly, but these scale inhibitors are prone to calcium gel phenomenon when added to the circulating water system , has certain defects
[0004] During the use of water treatment agents, the concentration of water treatment agents will gradually decrease as time goes by, and the determination of the effective concentration in the circulating water system becomes the key. If the concentration of water treatment agents is too high, it will cause waste, and if it is too low, it will not be able to It plays the role of scale inhibition and dispersion. The concentration of traditional phosphorus-containing scale inhibitors can be measured using the ammonium molybdate method, while non-phosphorus scale inhibitors cannot be measured. In the non-phosphorus water treatment agent, it can be grafted with fluorescent tracer Fluorophores can solve this problem
[0005] The scale inhibitors commonly used in the prior art generally contain phosphorus, which seriously pollutes the environment, and it is difficult to apply phosphorus-free water treatment agents in the case of high temperature and high hardness

Method used

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  • Environment-friendly water treatment agent capable of realizing fluorescence tracing, and preparation method thereof
  • Environment-friendly water treatment agent capable of realizing fluorescence tracing, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Example 1: at N 2 Add 90g of prenyl alcohol into the protected reactor, add 110g of maleic anhydride and react at 78°C for 2.5h, adjust the reaction temperature to 90°C, then add 70g of maleic anhydride, 0.4g of N-phenyl- Vinylbenzyl-1-naphthylamine-8-sodium sulfonate, 100g of water, mix well, add 8g of sodium persulfate (dissolved in 40g of water) dropwise, after the dropwise addition, continue to react at 80°C for 2h, and cool down to room temperature Finally, a fluorescent labeling environment-friendly water treatment agent 1 was prepared.

[0021] The water treatment agent 1 of gained is when dosage is 7mg / L, to CaCO 3 Scale inhibition rate is 93.5%, for CaSO 4 The scale inhibition rate is 98.5%.

example 2

[0022] Example 2: at N 2 Add 105g of prenyl alcohol to the protected reactor, add 115g of maleic anhydride and react at 80°C for 1.5h, adjust the reaction temperature to 85°C, then add 85g of methyl acrylate, 0.6g of N-phenyl- Acryloyl-1-naphthylamine-8-sodium sulfonate, 100g water, mix well, add 6g sodium persulfonate (dissolved in 50g water) dropwise, after the dropwise addition, continue to react at 70°C for 2h, then cool down to room temperature Finally, a fluorescent label environment-friendly water treatment agent (2) is prepared.

[0023] The water treatment agent 2 of gained is when dosage is 7mg / L, to CaCO 3 Scale inhibition rate is 91.5%, for CaSO 4 The scale inhibition rate is 98.9%.

example 3

[0024] Example 3: at N 2 Add 80g of prenol to the protected reactor, add 95g of maleic anhydride and react at 60°C for 2.5h, adjust the reaction temperature to 80°C, then add 95g of acrylic acid, 0.35g of N-phenyl-vinyl Benzyl-1-naphthylamine-8-sodium sulfonate, 90g water, after mixing, add dropwise 7g sodium persulfate (dissolved in 50g water), after the dropwise addition, continue to react at 85°C for 2h, after cooling down to room temperature, A fluorescent labeling environment-friendly water treatment agent (3) is prepared.

[0025] The water treatment agent 3 of gained is when dosage is 7mg / L, to CaCO 3 Scale inhibition rate is 89.5%, for CaSO 4 The scale inhibition rate is 99.1%.

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Abstract

The invention discloses an environment-friendly water treatment agent capable of realizing fluorescence tracing. The environment-friendly water treatment agent capable of realizing fluorescence tracing is obtained via water phase free radical copolymerization of an isopentenyl alcohol ester monmer and a monomer containing vinyl unsaturated double bonds with a fluorescent monomer capable of realizing fluorescence tracing. The general structural formula is disclosed in the invention, wherein A is used for representing structural repeat units obtained via copolymerization of the monomer containing vinyl unsaturated double bonds, B is used for representing structural repeat units obtained via polymerization of the fluorescent monomer containing unsaturated double bonds, polymerization degreesx and y range from 1 to 5000, the numbers of the repeat units m and n range from 1 to 100. The environment-friendly water treatment agent is excellent in compatibleness, can be used alone, and also can be combined with water treatment agents such as organic phosphates, and zinc corrosion inhibitors.

Description

technical field [0001] The invention relates to a water treatment agent for a circulating cooling water system and a preparation method thereof, which is an environment-friendly water treatment agent applicable to the circulating cooling water system and capable of fluorescence tracer quantification, especially suitable for the cooling water system with high hardness water quality. Background technique [0002] With the increasing shortage of water resources, industrial water has begun to be recycled. In order to cool down the reactor in the industry, the cooling tower system is generally used to provide cooling water. The consumption of cooling water accounts for more than 70% of the entire industrial water use. At present, the cooling water is recycled to reduce water consumption. However, with the recycling of cooling water (generally adding groundwater), especially in some northern regions, the water quality is relatively hard, and the inorganic salt ions in the cooling ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/26C08F222/06C08F212/14C08F220/14C08F220/58C08F220/06C08F222/02C02F1/00
Inventor 杨建军王虎传吴庆云吴明元张建安
Owner ANHUI UNIVERSITY
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