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Formula and application of corrosion and scale inhibitor containing degradable quaternary ammonium salt

A corrosion and scale inhibitor, quaternary ammonium salt technology, applied in the direction of scale removal and water softening, chemical instruments and methods, special treatment targets, etc., can solve problems such as water eutrophication, ocean tides, water environment pollution, etc., to achieve High temperature resistant, biodegradable, reduced application, safe formulation components

Active Publication Date: 2019-08-27
WUXI GUANGYUAN HI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most widely used water treatment agent is organophosphoric acid, which has the advantages of high temperature resistance and good chemical stability. Serious pollution of the water environment

Method used

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  • Formula and application of corrosion and scale inhibitor containing degradable quaternary ammonium salt
  • Formula and application of corrosion and scale inhibitor containing degradable quaternary ammonium salt
  • Formula and application of corrosion and scale inhibitor containing degradable quaternary ammonium salt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A corrosion and scale inhibitor formula containing degradable quaternary ammonium salt, including the following ingredients (calculated by weight ratio): 5 parts of zinc sulfate, 10 parts of acrylic acid-acrylic ester copolymer, 14 parts of polyepoxysuccinic acid (PESA) 14 parts, polyaspartic acid (PASP) 14 parts, R-2-N-Bn 18 parts, water 60 parts.

[0022] Further, the salinity of water is 5000 mg / L.

[0023] Further, the molecular structure of the degradable quaternary ammonium salt R-2-N-Bn is as follows:

[0024]

[0025] Further, wherein the degradable quaternary ammonium salt is reacted according to the following steps:

[0026]

[0027] Further, its preparation steps include:

[0028] S1: Synthesis of Compound 1: Add dehydroabietic acid (30 g, 0.10 mol) into a three-neck flask equipped with a tail gas absorption device and a reflux condenser, raise the temperature to 55 °C, and start to slowly add SOCl 2 (14.3 g, 0.12 mol), there is a large amount of ga...

Embodiment 2

[0031] A corrosion and scale inhibitor formula containing degradable quaternary ammonium salts, including the following ingredients (calculated by weight): 4 parts of zinc sulfate, 8 parts of acrylic acid-acrylic ester copolymer, 12 parts of polyepoxysuccinic acid (PESA) 10 parts, 10 parts of polyaspartic acid (PASP), 15 parts of R-2-N-Bn, 50 parts of water.

[0032] Further, the salinity of water is 5000 mg / L.

[0033] Further, the molecular structure of the degradable quaternary ammonium salt R-2-N-Bn is as follows:

[0034]

[0035] Further, wherein the degradable quaternary ammonium salt is reacted according to the following steps:

[0036]

[0037] Further, its preparation steps include:

[0038] S1: Synthesis of Compound 1: Add dehydroabietic acid (30 g, 0.10 mol) into a three-neck flask equipped with a tail gas absorption device and a reflux condenser, raise the temperature to 55 °C, and start to slowly add SOCl 2 (14.3 g, 0.12 mol), there is a large amount of...

Embodiment 3

[0041] A corrosion and scale inhibitor formula containing degradable quaternary ammonium salts, including the following ingredients (calculated by weight): 7 parts of zinc sulfate, 6 parts of acrylic acid-acrylate copolymer, 10 parts of polyepoxysuccinic acid (PESA) 15 parts, polyaspartic acid (PASP) 15 parts, R-2-N-Bn 17 parts, water 70 parts.

[0042] Further, the salinity of water is 5000 mg / L.

[0043] Further, the molecular structure of the degradable quaternary ammonium salt R-2-N-Bn is as follows:

[0044]

[0045] Further, wherein the degradable quaternary ammonium salt is reacted according to the following steps:

[0046]

[0047] Further, its preparation steps include:

[0048] S1: Synthesis of Compound 1: Add dehydroabietic acid (30 g, 0.10 mol) into a three-neck flask equipped with a tail gas absorption device and a reflux condenser, raise the temperature to 55 °C, and start to slowly add SOCl 2 (14.3 g, 0.12 mol), there is a large amount of gas to genera...

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Abstract

The invention discloses a formula of a corrosion and scale inhibitor containing a degradable quaternary ammonium salt. The formula comprises, by weight, 3-7 parts of zinc sulfate, 5-10 parts of acrylic acid-acrylate copolymers, 10-15 parts of polyepoxysuccinic acid (PESA), 10-15 parts of polyaspartic acid (PASP), 15-20 parts of R-2-N-Bn and 50-70 parts of water. A preparation method of the corrosion and scale inhibitor comprises the steps of synthesizing a first compound and preparing a product R-2-N-Bn, wherein the corrosion and scale inhibitor is applied to the field of water disposal. The related corrosion and scale inhibitor does not contain phosphorus components; the formula components are safer and environmentally friendly; the corrosion and scale inhibition performance is good; thecorrosion and scale inhibitor has a good application effect in disposal of high-mineralization water; the formula comprises the biodegradable quaternary ammonium salt R-2-N-Bn, and the corrosion and scale inhibitor has the advantages of high water solubility, good acid and alkali resistance, great high-temperature resistance, high biodegradability and the like. The water disposal effect is ensured, the application of phosphorus-containing compounds is reduced at the same time, and the influence on the environment is avoided.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a corrosion and scale inhibitor formula containing degradable quaternary ammonium salt and its application. Background technique [0002] The water resources that can be directly or indirectly used by people on the earth are increasingly scarce, and the fresh water mainly used by human beings accounts for about 2.53% of the total water storage in the world. Therefore, improving the utilization efficiency of circulating water is of great significance to industrial production and social and economic development. At present, the most widely used water treatment agent is organophosphoric acid, which has the advantages of high temperature resistance and good chemical stability. Serious pollution of the water environment. Therefore, in order to solve the problem of water treatment, it is urgent to develop and design green and environmentally friendly corrosion and scale inhib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12C02F101/38
CPCC02F5/125C02F2101/38C02F2303/08C02F2303/22
Inventor 陈登鑫翁玲华仲崇军
Owner WUXI GUANGYUAN HI TECH
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