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Scale inhibitor for air conditioning circulating water system in textile mill and preparation method of scale inhibitor

A technology of air conditioning cycle and scale inhibitor, which is applied in chemical instruments and methods, natural water treatment, non-polluted water treatment, etc., can solve the problems of complex preparation process and low scale inhibition efficiency, and achieves reduction of crystal growth rate and extended use. Life, the effect of solving the scaling problem

Inactive Publication Date: 2018-05-04
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of antiscalant for the air conditioning circulating water system of textile mills, which solves the problems of low antiscaling efficiency and complicated preparation process of the antiscalant in the prior art

Method used

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  • Scale inhibitor for air conditioning circulating water system in textile mill and preparation method of scale inhibitor
  • Scale inhibitor for air conditioning circulating water system in textile mill and preparation method of scale inhibitor
  • Scale inhibitor for air conditioning circulating water system in textile mill and preparation method of scale inhibitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Step 1. Weigh respectively: itaconic acid (IA) 9.2929g, sodium allyl sulfonate (SAS) 4.12g, hydroxyethyl methacrylate (HEMA) 2.97463g, ammonium persulfate 1.4077g, tert-butanol 1.6385g g, distilled water 300g;

[0036] Step 2, the itaconic acid (IA) that is taken in step 1, sodium allyl sulfonate (SAS), hydroxyethyl methacrylate (HEMA), tert-butyl alcohol and distilled water are added in the three-necked flask, and the three-necked flask is fixed On a constant temperature heating magnetic stirrer, stir and heat to 90°C until all the solids are dissolved to obtain the mixed liquid a;

[0037] Step 3, add ammonium persulfate dropwise to the mixed solution a in step 2 through a constant pressure dropping funnel, keep warm for 1.5h after the dropwise addition is completed, then cool to room temperature, adjust the pH value to 5 with potassium hydroxide solution, and obtain light yellow Transparent liquid, i.e. mixed liquid b;

[0038] Step 4. Add 95% absolute ethanol whos...

Embodiment 2

[0040] Step 1. Weigh respectively: itaconic acid (IA) 13.01g, sodium allyl sulfonate (SAS) 4.12g, hydroxyethyl methacrylate (HEMA) 1.48731g, ammonium persulfate 1.7422g, tert-butanol 1.8614 g, distilled water 300g;

[0041] Step 2, the itaconic acid (IA) that is taken in step 1, sodium allyl sulfonate (SAS), hydroxyethyl methacrylate (HEMA), tert-butyl alcohol and distilled water are added in the three-necked flask, and the three-necked flask is fixed On a constant temperature heating magnetic stirrer, stir until all the solids are dissolved and heat to 85°C to obtain the mixed solution a;

[0042] Step 3, add ammonium persulfate dropwise to the mixed solution a in step 2 through a constant pressure dropping funnel, keep warm for 3 hours after the dropwise addition is completed, then cool to room temperature, adjust the pH value to 5 with potassium hydroxide solution, and obtain a light yellow transparent Liquid, i.e. mixed liquid b;

[0043] Step 4. Add 95% absolute ethanol...

Embodiment 3

[0045]Step 1. Weigh respectively: itaconic acid (IA) 13.01g, sodium allyl sulfonate (SAS) 4.12g, hydroxyethyl methacrylate (HEMA) 2.97463g, ammonium persulfate 2.7099g, tert-butanol 2.0102 g, distilled water 300g;

[0046] Step 2, the itaconic acid (IA) taken in step 1, sodium allyl sulfonate (SAS), hydroxyethyl methacrylate (HEMA), tert-butyl alcohol and distilled water are added in the three-necked flask, and the three-necked flask is fixed on Heating on a magnetic stirrer at a constant temperature, stirring until all the solids are dissolved and heating to 75°C to obtain a mixed liquid a;

[0047] Step 3, add ammonium persulfate dropwise to the mixed solution a in step 2 through a constant pressure dropping funnel, keep warm for 2 hours after the dropwise addition is completed, then cool to room temperature, adjust the pH value to 5 with potassium hydroxide solution, and obtain light yellow transparent Liquid, i.e. mixed liquid b;

[0048] Step 4. Add 95% absolute ethanol...

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Abstract

The invention discloses a scale inhibitor for an air conditioning circulating water system in a textile mill. The scale inhibitor is prepared by the following steps: taking three monomers, namely itaconic acid, sodium allysulfonate and hydroxyethyl methylacrylate, as raw materials, and synthesizing a terpolymer scale inhibitor containing sulfonic group, carboxylic group, hydroxyl and ester groupsby virtue of a free radical solution copolymerization reaction. The scale inhibitor disclosed by the invention solves the problems in the prior art that the scale inhibitor is low in scale inhibitionefficiency and complicated in preparation process. The invention further discloses a preparation method of the scale inhibitor for the air conditioning circulating water system in the textile mill.

Description

technical field [0001] The invention belongs to the technical field of water treatment chemicals, and relates to a scale inhibitor for an air-conditioning circulating water system in a textile mill, and also relates to a preparation method of the scale inhibitor. Background technique [0002] At present, in many industrial productions, circulating cooling water is almost accompanied by the whole process of production and plays a very important role. A good circulating water system is the prerequisite for the stable operation of the production equipment of the enterprise. Spraying systems are widely used in textile enterprises to treat the indoor air in textile workshops. The spraying room sprays water at different temperatures into mist droplets that directly contact the air for heat and moisture exchange. The water spray room mostly adopts secondary spray and evaporative cooling, and uses circulating water. However, with the continuous operation of the spray air conditionin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10C08F222/02C08F228/02C08F220/20C02F103/02
CPCC02F5/10C02F2103/023C08F222/02C08F228/02C08F220/20
Inventor 余嵘苏玲莉
Owner XI'AN POLYTECHNIC UNIVERSITY
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