Tracing type bio-based scale inhibitor as well as preparation method and application thereof

A bio-based, antiscalant technology, applied in chemical instruments and methods, descaling and water softening, water/sludge/sewage treatment, etc., can solve the problems of cumbersome preparation process and difficult large-scale production, and achieve the goal of preparation process Simple, excellent calcium sulfate inhibition performance, high scale inhibition efficiency effect

Pending Publication Date: 2021-07-16
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it needs to be heated continuously during its preparation. The whole reaction process is about 30 hours, and the temperature is as high as 200 o C, the preparation process is relatively cumbersome, and it is not easy to produce on a large scale

Method used

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  • Tracing type bio-based scale inhibitor as well as preparation method and application thereof
  • Tracing type bio-based scale inhibitor as well as preparation method and application thereof
  • Tracing type bio-based scale inhibitor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Under the condition of mechanical stirring (the mechanical stirring speed is 300r / min), dissolve trisodium 8-hydroxy-1,3,6-pyrene trisulfonate in methanol solution and pour it into a four-neck flask, then add triethylamine solution. Finally, under the condition of water bath heating (heating temperature is 40 o C) Slowly add glycidyl methacrylate (8-hydroxy-1,3,6-trisodium pyrenetrisulfonate, triethylamine, glycidyl methacrylate , The mass ratio of methanol is 1:1:2:3000), after the dropwise addition, continue to heat the reaction (reaction time is 8h). After the reaction, pour the solution into a flask, and use a rotary evaporator to extract the solvent methanol to obtain the final product monomer with a fluorescent group;

[0034] Weigh a certain amount of chitosan, add it to the hydrochloric acid solution (the mass ratio of chitosan, hydrochloric acid, and water is 1:4:100), under the condition of magnetic stirring (magnetic stirring speed is 120r / min), wait until ...

Embodiment 2

[0038] Under the condition of mechanical stirring (the mechanical stirring speed is 300r / min), dissolve trisodium 8-hydroxy-1,3,6-pyrene trisulfonate in methanol solution and pour it into a four-neck flask, then add triethylamine solution. Finally, under the condition of water bath heating (heating temperature is 50 o C) Slowly add glycidyl methacrylate (8-hydroxy-1,3,6-trisodium pyrenetrisulfonate, triethylamine, glycidyl methacrylate , The mass ratio of methanol is 1:0.1:0.5:2000), after the dropwise addition, continue to heat the reaction (reaction time is 6h). After the reaction, pour the solution into a flask, and use a rotary evaporator to extract the solvent methanol to obtain the final product monomer with a fluorescent group;

[0039] Weigh a certain amount of chitosan, add it to the hydrochloric acid solution (the mass ratio of chitosan, hydrochloric acid, and water is 1:2:80), under the condition of magnetic stirring (magnetic stirring speed is 120r / min), wait unt...

Embodiment 3

[0043] Under the condition of mechanical stirring (the mechanical stirring speed is 300r / min), dissolve trisodium 8-hydroxy-1,3,6-pyrene trisulfonate in methanol solution and pour it into a four-neck flask, then add triethylamine solution. Finally, under the condition of water bath heating (heating temperature is 70 o C) Slowly add glycidyl methacrylate (8-hydroxy-1,3,6-trisodium pyrenetrisulfonate, triethylamine, glycidyl methacrylate , The mass ratio of methanol is 1:2:0.1:2000), after the dropwise addition, continue to heat the reaction (reaction time is 10h). After the reaction, pour the solution into a flask, and use a rotary evaporator to extract the solvent methanol to obtain the final product monomer with a fluorescent group;

[0044] Weigh a certain amount of chitosan, add it to hydrochloric acid solution (mass ratio of chitosan, hydrochloric acid, water is 1:3:150), under the condition of magnetic stirring (magnetic stirring speed is 120r / min), wait for Chitosan w...

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Abstract

The invention relates to a tracing type bio-based scale inhibitor, which is characterized in that the tracing type bio-based scale inhibitor contains bio-based high-molecular polymer chitosan, and the polymer chitosan is provided with carboxyl and fluorophore. The invention relates to a preparation method of the tracing type bio-based scale inhibitor. The preparation method comprises the steps of A, preparing a monomer with a fluorophore; and B, preparing the tracing type bio-based scale inhibitor. According to the application of the tracing type bio-based scale inhibitor, the tracing type bio-based scale inhibitor adopts the preparation method, and the tracing type bio-based scale inhibitor is applied to industrial circulating cooling water. The preparation process of the tracing type bio-based scale inhibitor is simple, reaction conditions are mild, the finally obtained scale inhibitor does not need to be purified from a solvent, and no by-product is generated.

Description

technical field [0001] The invention relates to the preparation and application of a tracer type bio-based scale inhibitor used in industrial circulating cooling water, and belongs to the technical field of water treatment. Background technique [0002] The problem often encountered in industrial production such as salt production, seawater desalination, oil exploitation, and comprehensive utilization of salt lake resources is calcium sulfate scale. The continuous thickening of the scale layer not only affects heat transfer efficiency, causes heat loss, reduces output, and It will increase the production cost and prolong the production cycle. The commonly used method is to add chemical antiscalant, which has the characteristics of less useful amount and obvious effect. The Chinese patent "A Composite Low-Phosphorus Corrosion and Scale Inhibitor and Its Application" with the application number of 201110071299.6 discloses a composite low-phosphorus corrosion and scale inhibit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12C08F251/00C08F220/06C08F220/38C09K11/06C02F103/02
CPCC02F5/12C02F2103/023C08F251/00C09K11/06C09K2211/145C08F220/06C08F220/382
Inventor 张少鹏田大勇丁洁
Owner ANYANG INST OF TECH
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