Fluorescence tracing traditional Chinese medicine residue functionalized carbon dot corrosion and scale inhibitor as well as preparation method and application thereof

A corrosion and scale inhibitor, fluorescent tracer technology, applied in chemical instruments and methods, descaling and water softening, special compound water treatment, etc., can solve the problem of high toxicity, high cost and poor stability of corrosion and scale inhibitors problem, to achieve excellent corrosion inhibition effect, carbon steel corrosion rate reduction, high water solubility effect

Active Publication Date: 2022-01-21
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a kind of fluorescent tracer traditional Chinese medicine dregs functionalized carbon point corrosion and scale inhibitor, preparation method and application to solve the technical problems of high toxicity, poor stability and high cost of corrosion and scale inhibitors in the prior art

Method used

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  • Fluorescence tracing traditional Chinese medicine residue functionalized carbon dot corrosion and scale inhibitor as well as preparation method and application thereof
  • Fluorescence tracing traditional Chinese medicine residue functionalized carbon dot corrosion and scale inhibitor as well as preparation method and application thereof
  • Fluorescence tracing traditional Chinese medicine residue functionalized carbon dot corrosion and scale inhibitor as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This example provides a preparation method of a fluorescent tracer traditional Chinese medicine dregs functionalized carbon point corrosion and scale inhibitor, which is carried out according to the following steps:

[0047] Step 1, mix 1.0g of angelica dregs into 30ml of deionized water;

[0048] Step 2: Add 0.5 g of polyethyleneimine into the water mixture of angelica dregs, and stir magnetically for 30 minutes, so that the water mixture is evenly mixed;

[0049] Step 3, transfer the water mixture to a polytetrafluoroethylene-lined autoclave, heat it in an oven to 160°C, and keep it for 3 hours;

[0050] Step 4, after the reaction is finished, take out the reactor and cool to room temperature, filter the large residue with qualitative filter paper, and then use a syringe filter (pore size, 0.22 μm) to filter;

[0051] Step 5, dialyze the filtrate with deionized water for 6 hours, freeze-dry the dark brown solution obtained after removing impurities, and prepare PEI-CD,...

Embodiment 2

[0058] This example presents the application of a fluorescent tracer traditional Chinese medicine slag functionalized carbon point corrosion and scale inhibitor for corrosion inhibition of Q235 steel in acidic conditions. The fluorescent tracer traditional Chinese medicine slag functionalized carbon point corrosion and scale inhibitor is prepared by the preparation method of the fluorescent tracer traditional Chinese medicine slag functionalized carbon point corrosion and scale inhibitor in Example 1.

[0059] This embodiment provides the PEI-CD of embodiment 1 A Used in 1.0mol / L HCl, the application of different dosing concentrations to the corrosion inhibition of Q235 steel in acidic conditions.

[0060] At a temperature of 303K, PEI-CD in 1.0mol / L HCl was tested A The relationship between different dosage concentrations and corrosion inhibition performance. With PEI-CD A As the concentration increases, the corrosion current density decreases gradually. These results ind...

Embodiment 3

[0065] This example presents the application of a fluorescent tracer traditional Chinese medicine slag functionalized carbon point corrosion and scale inhibitor for corrosion inhibition of Q235 steel in acidic conditions. The fluorescent tracer traditional Chinese medicine slag functionalized carbon point corrosion and scale inhibitor is prepared by the preparation method of the fluorescent tracer traditional Chinese medicine slag functionalized carbon point corrosion and scale inhibitor in Example 1.

[0066] This embodiment provides the PEI-CD of embodiment 1 A Used in 1.0mol / L HCl, the application of different immersion time to the corrosion inhibition of Q235 steel in acidic conditions.

[0067] in PEI-CD A The relationship between the immersion time and corrosion rate of Q235 steel in 1.0mol / L HCl was tested under the condition of 5mg / L dosing concentration. With the extension of immersion time, the corrosion of Q235 steel in the blank solution is obviously intensified....

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Abstract

The invention provides a fluorescent tracing traditional Chinese medicine residue functionalized carbon dot corrosion and scale inhibitor as well as a preparation method and application thereof. According to the method, angelica sinensis residues and polyethyleneimine are taken as raw materials, the two raw materials are fully mixed to be uniform, a hydrothermal method is adopted, a heating reaction is conducted for 3 h at the temperature of 160 DEG C, and the fluorescent tracing traditional Chinese medicine residue functionalized carbon dot corrosion and scale inhibitor is prepared. The corrosion and scale inhibitor is applied to corrosion inhibition of Q235 steel under an acidic condition. The corrosion and scale inhibitor is used for inhibiting calcium sulfate. The corrosion and scale inhibitor provided by the invention has excellent corrosion and scale inhibition performance, not only reasonably treats the pollutant of the traditional Chinese medicine waste residue, but also solves the technical problems of high toxicity, poor stability and high cost of the existing corrosion and scale inhibitor. According to the invention, the used raw material is the waste angelica sinensis residues, so that the harm of the pollutant, namely the traditional Chinese medicine dregs, to the environment is effectively reduced; and meanwhile, the raw materials are green, safe, cheap and easy to obtain, and the cost of the corrosion and scale inhibitor is greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of metal material protection and industrial cooling water treatment, and relates to fluorescent tracer, in particular to a fluorescent tracer traditional Chinese medicine dregs functionalized carbon point corrosion and scale inhibitor, preparation method and application. Background technique [0002] In industrial production, corrosion and scaling of water system equipment or pipes have brought huge economic losses and operational problems to many water systems such as cooling water systems, modern industry, oil field development, and seawater desalination plants. In order to solve the corrosion and scaling problems of carbon steel equipment in industrial cooling water systems, adding corrosion and scale inhibitors to the water system is the most simple, effective and effective method. However, the commonly used corrosion and scale inhibitors have toxicity and large dosage, which increases the environmental ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12C23F11/10C02F103/02C02F101/10
CPCC02F5/12C23F11/10C02F2303/08C02F2303/22C02F2305/08C02F2103/023C02F2101/101
Inventor 董社英肖晗黄廷林
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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