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Macromolecule scale inhibitor and preparation method thereof

A scale inhibitor and polymer technology, applied in the field of polymer scale inhibitor and its preparation, can solve the problems of low scale inhibition efficiency, secondary pollution of water environment, etc., and achieve easy control of conditions, good scale inhibition performance, and mild conditions. Effect

Inactive Publication Date: 2018-07-24
陈沩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, inorganic scale inhibitors are gradually replaced by organic scale inhibitors due to their low scale inhibition efficiency and possible secondary pollution of the water environment.

Method used

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  • Macromolecule scale inhibitor and preparation method thereof
  • Macromolecule scale inhibitor and preparation method thereof
  • Macromolecule scale inhibitor and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A polymer antiscalant of the present invention is made of the following raw material components in proportions by mass:

[0029]

[0030] A kind of preparation method of macromolecule antiscalant of the present invention is realized by following steps:

[0031] (1) After adding 47 parts of water and 17 parts of cardanol into the reactor, start stirring, and start heating;

[0032] (2) When the temperature rises to 70°C, add 2 parts of hydrogen peroxide and react for 1 hour;

[0033] (3) Add 19 parts of iminodiacetic acid, 6 parts of epichlorohydrin, and 9 parts of diethylenetriamine, heat up to 105°C and react for 3 hours, then cool down and discharge to obtain the polymer scale inhibitor.

Embodiment 2

[0035] A polymer antiscalant of the present invention is made of the following raw material components in proportions by mass:

[0036]

[0037]

[0038] A kind of preparation method of macromolecule antiscalant of the present invention is realized by following steps:

[0039] (1) After adding 45 parts of water and 18 parts of cardanol into the reactor, start stirring, and start heating;

[0040] (2) When the temperature rises to 80°C, add 4 parts of sodium percarbonate and react for 1.5 hours;

[0041] (3) Add 17 parts of iminodiacetic acid, 8 parts of epichlorohydrin, and 8 parts of diethylenetriamine, heat up to 108°C and react for 3.5 hours, then cool down and discharge to obtain the polymer scale inhibitor.

Embodiment 3

[0043] A polymer antiscalant of the present invention is made of the following raw material components in proportions by mass:

[0044]

[0045] A kind of preparation method of macromolecule antiscalant of the present invention is realized by following steps:

[0046] (1) After adding 47 parts of water and 20 parts of cardanol into the reactor, start stirring, and start heating;

[0047] (2) When the temperature rises to 85°C, add 5 parts of sodium percarbonate and react for 2 hours;

[0048] (3) Add 13 parts of iminodiacetic acid, 9 parts of epichlorohydrin, and 6 parts of triethylenetetramine, heat up to 113°C and react for 5 hours, then cool down and discharge to obtain the polymer scale inhibitor.

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PUM

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Abstract

The invention provides a macromolecule scale inhibitor and a preparation method thereof. The preparation method comprises the following steps of (1) adding water and cardanol into a reaction kettle, starting to stir, and heating; (2) after the temperature is increased to 65 to 100 DEG C, adding an oxidant, and reacting for 0.5 to 3h; (3) adding iminodiacetic acid, epoxy chloropropane and unsaturated organic amine, heating to 100 to 120 DEG C, reacting for 1 to 6h, cooling and discharging, so as to obtain the macromolecule scale inhibitor.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a polymer scale inhibitor and a preparation method thereof. Background technique [0002] In the circulating cooling water system, scaling is one of the main problems affecting the water quality and the safe operation of the system. Up to now, adding antiscalant to circulating cooling water is still an effective method to control scaling. [0003] As early as the 1930s, inorganic scale inhibitors were used to prevent scale formation, and their scale inhibition mechanism was also studied. However, inorganic scale inhibitors are gradually replaced by organic scale inhibitors due to their low scale inhibition efficiency and possible secondary pollution of the water environment. Since the last century, scale inhibitors for industrial circulating cooling water have been one of the most active research fields at home and abroad. According to the development history and func...

Claims

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Application Information

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IPC IPC(8): C02F5/12C02F5/08
CPCC02F5/125
Inventor 陈沩
Owner 陈沩