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Carbonate scale inhibitor and preparation method thereof

A carbonate scale and antiscalant technology, which is applied in chemical instruments and methods, descaling and water softening, and special treatment targets, can solve the problems of high cost of scale inhibitors for water treatment, poor scale inhibitor dispersion, and corrosion inhibition performance. Poor and other problems, to achieve the effect of cost saving, good stability and low cost

Inactive Publication Date: 2018-10-30
SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] In view of the above technical problems, the present application provides a carbonate scale inhibitor and its preparation method to solve the technical problems of existing water treatment scale inhibitors such as high cost, environmental protection, poor scale inhibitor dispersion and poor corrosion inhibition performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take by weighing 3 parts of sodium dihydrogen phosphate according to the ratio of parts by weight; 8 parts of sodium hydroxide; 2 parts of calcium sulfonate; 3 parts of methyl acrylate; 100 parts of water; 4 parts of sodium salicylate; 1 part; 4.5 parts of tartaric acid; 1 part of cyclohexaol; 7 parts of allyl glyceryl ether; 5 parts of trinaphthyl phosphate; 10 parts of zinc sulfate; 6 parts of dibromobutane; 4 parts of ammonium carbonate; lignin Sodium sulfonate 8 parts.

[0028] Add cyclohexanol and water into a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a reflux condenser, heat to 70°C, stir for 20 minutes, add sodium dihydrogen phosphate and methyl acrylate dropwise, and heat up to 80°C, react for 1h.

[0029] Add ethylenediamine, tartaric acid, calcium sulfonate and allyl glyceryl ether, raise the temperature to 90°C, and react for 1h.

[0030] Raise the temperature to 100°C, add the remaining raw ...

Embodiment 2

[0033] Weigh 7 parts of sodium dihydrogen phosphate according to the proportion in parts by weight; 12 parts of sodium hydroxide; 6 parts of calcium sulfonate; 5 parts of methyl acrylate; 100 parts of water; 6 parts of sodium salicylate; 5 parts; 6.5 parts of tartaric acid; 3 parts of cyclohexanol; 9 parts of allyl glyceryl ether; 9 parts of trinaphthyl phosphate; 12 parts of zinc sulfate; 10 parts of dibromobutane; 10 parts of sodium sulfonate.

[0034] Add cyclohexanol and water into a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a reflux condenser, heat to 80°C, stir for 60 minutes, add sodium dihydrogen phosphate and methyl acrylate dropwise, and heat up To 90°C, react for 3h.

[0035] Add ethylenediamine, tartaric acid, calcium sulfonate and allyl glyceryl ether, raise the temperature to 100°C, and react for 5h.

[0036] Raise the temperature to 110°C, add the remaining raw materials, stir for 4 hours, cool to...

Embodiment 3

[0039] Take by weight 5 parts of sodium dihydrogen phosphate; 10 parts of sodium hydroxide; 4 parts of calcium sulfonate; 4 parts of methyl acrylate; 100 parts of water; 5 parts of sodium salicylate; 3 parts; 5.5 parts of tartaric acid; 2 parts of cyclohexaol; 8 parts of allyl glyceryl ether; 7 parts of trinaphthyl phosphate; 11 parts of zinc sulfate; 8 parts of dibromobutane; 6 parts of ammonium carbonate; lignin Sodium sulfonate 9 parts.

[0040] Add cyclohexanol and water into a four-necked flask equipped with an electric stirrer, a constant pressure dropping funnel, a thermometer and a reflux condenser, heat to 75°C, stir for 40 minutes, add sodium dihydrogen phosphate and methyl acrylate dropwise, and heat up To 85°C, react for 2h.

[0041] Add ethylenediamine, tartaric acid, calcium sulfonate and allyl glyceryl ether, raise the temperature to 95°C, and react for 3h.

[0042] Raise the temperature to 105°C, add the remaining raw materials, stir for 3 hours, cool to room...

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Abstract

The invention discloses a carbonate scale inhibitor and a preparation method thereof. The carbonate scale inhibitor comprises the following raw materials: sodium dihydrogen phosphate, sodium hydroxide, calcium sulfonate, methyl acrylate, water, sodium salicylate, 2-hydroxyphosphonocarboxylic acid, tartaric acid, cyclohexanhexol, allyl glyceroether, trinaphthol phosphate, zinc sulfate, dibromobutane, ammonium carbonate and sodium lignin sulfonate. The carbonate scale inhibitor is mainly used for inhibiting carbonate scale, with the inhibition rate reaching 97 to 99.9 percent, and does not toxiccontain chromate; the carbonate scale inhibitor has high complexing solubilization action on carbonate scale and sulphate scale, is wide in applicable pH range, can be applied to a range of pH 2.5 topH 11, and has better scale inhibition effect within a range of pH 4.5 to pH 9.5; the stability is good, and compared with the traditional formula agent with the operation concentration being (50-450)*10<-6>, the carbonate scale inhibitor has the advantages that the operation concentration is (24-45)*10<-6>, the carbonate scale inhibitor does not contain nitrite, and the scale inhibition effect of the carbonate scale inhibitor is 98 to 99 percent after the carbonate scale inhibitor is stored for three months at 50 to 60 DEG C.

Description

technical field [0001] The application belongs to the technical field of ring reagents, and in particular relates to an environment-friendly and good corrosion inhibiting carbonate scale inhibitor and a preparation method thereof. Background technique [0002] Scale inhibitor: It is a class of agents that can disperse insoluble inorganic salts in water, prevent or interfere with the precipitation and scaling of insoluble inorganic salts on metal surfaces, and maintain good heat transfer effects on metal equipment . [0003] Scale inhibitors can remove scale and prevent the formation of scale, improve heat exchange efficiency, reduce electric energy or reduce fuel consumption; water treatment can also reduce sewage discharge, improve water utilization, and generally save more than 60%, which is in line with my country's energy saving and emission reduction new policy. [0004] Greening is undoubtedly the development direction of antiscalants in the 21st century. Therefore...

Claims

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Application Information

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IPC IPC(8): C02F5/14
CPCC02F5/145C02F2303/08C02F2303/22
Inventor 凌云凌天阳金可心夏戊君
Owner SUZHOU YOUJUN ENVIRONMENTAL SCI & TECH
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