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Sulfonic acid group-containing attapulgite corrosion and scale inhibitor and preparation method as well as application thereof

A corrosion and scale inhibitor, attapulgite technology, applied in the field of water treatment, can solve the problems of low calcium ion tolerance, eutrophication of water body, environmental pollution, etc., achieve good effect of dispersing iron oxide, low price, The effect of a wide range of raw material sources

Inactive Publication Date: 2012-11-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Building Materials World, 2010,31(3):7-9, reported that sodium methacrylate, acrylic acid, and acrylamide were used as monomers, The copolymer was synthesized in water with ammonium persulfate as the initiator and isopropanol as the chain transfer group; the polymer had good scale inhibition effect on calcium carbonate, but when the concentration of Ca2+ When it reaches 500 mg / L, the scale inhibition rate is only 57.8%, and the tolerance to calcium ions is not very high, and isopropanol is used in the experiment. Symptoms such as redness, headache, mental depression, nausea, coma, etc., are discharged into the water, which not only brings environmental pollution, but also causes harm to the human body;
[0005](2) Desalination 2009,249: 1-4, introduced maleic anhydride (MA) and sodium styrene sulfonate (SS) as monomers, and then Phosphoric acid and hydrogen peroxide are used as initiators to obtain a new type of scale inhibitor. This initiator has good scale inhibition effect, but hypophosphorous acid is used in the initiator, which will cause eutrophication of the water body after being dissolved in water. cause environmental pollution;
[0006](3) Yunnan Chemical Industry, 2011, 38(5): 1-6, introduced the use of hydrolyzed polymaleic anhydride (HPMA), polyepoxysuccinic acid ( PESA), sodium gluconate, D-sodium erythorbate and zinc salt were used as raw materials to develop a new type of non-phosphorus corrosion and scale inhibitor. Complex, and the introduction of zinc salts may cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 0.2g of attapulgite (ATT) into a four-neck flask, add an appropriate amount of distilled water, start stirring and heat to 80°C; weigh 3g of sodium p-styrene sulfonate (SSS) and 1g of maleic anhydride (MA), Dissolve it with an appropriate amount of distilled water and add it to a pear-shaped funnel; weigh 12% of the initiator ammonium persulfate (NH 4 ) 2 S 2 o 8 , dissolve it with an appropriate amount of distilled water, and add it to another pear-shaped funnel; insert a thermometer into the other mouth of the four-neck flask, and after the attapulgite is completely dispersed, start to drop the mixed solution of initiator and SSS / MA respectively; The SSS / MA was added dropwise at the predetermined time, and the initiator was added about 10~15 minutes after the addition of SSS / MA, and then stirred at constant temperature for 5 hours, and the reaction solution was evaporated and crystallized to obtain the green scale inhibitor (ATP-1). The calcium carbonate sc...

Embodiment 2

[0020] Weigh 1g of attapulgite (ATT) into a four-necked flask, add an appropriate amount of distilled water, start stirring and heat to 70°C; weigh 2.5g of sodium p-styrene sulfonate (SSS) and 0.8g of maleic anhydride (MA), dissolve it with an appropriate amount of distilled water, and add it to a pear-shaped funnel; weigh 10% of the initiator ammonium persulfate (NH 4 ) 2 S 2 o 8 , dissolve it with an appropriate amount of distilled water, and add it to another pear-shaped funnel; insert a thermometer into the other mouth of the four-neck flask, and after the attapulgite is completely dispersed, start to drop the mixed solution of initiator and SSS / MA respectively; The SSS / MA was added dropwise at the scheduled time, and the initiator was added about 10-15 minutes after the addition of SSS / MA, and then stirred at constant temperature for 5 hours, and the reaction solution was evaporated and crystallized to obtain the green scale inhibitor (ATP-2). The calcium carbonate s...

Embodiment 3

[0022] Weigh 0.6g of attapulgite (ATT) into a four-necked flask, add an appropriate amount of distilled water, start stirring and heat to 50°C; weigh 4g of sodium p-styrene sulfonate (SSS) and 1g of maleic anhydride ( MA), dissolve it with an appropriate amount of distilled water, and add it to a pear-shaped funnel; weigh 12% of the initiator ammonium persulfate (NH 4 ) 2 S 2 o 8 , dissolve it with an appropriate amount of distilled water, and add it to another pear-shaped funnel; insert a thermometer into the other mouth of the four-neck flask, and after the attapulgite is completely dispersed, start to drop the mixed solution of initiator and SSS / MA respectively; SSS / MA was added dropwise at the predetermined time, and the initiator was added about 10-15 minutes after the addition of SSS / MA, and then stirred at constant temperature for 4 hours, and the reaction solution was evaporated and crystallized to obtain the green scale inhibitor (ATP-3). The calcium carbonate sc...

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Abstract

The invention discloses a sulfonic acid group-containing attapulgite corrosion and scale inhibitor and a preparation method as well as application thereof, and belongs to the technical field of water treatment. The preparation method of the sulfonic acid group-containing attapulgite corrosion and scale inhibitor comprises the following steps of: dissolving attapulgite in water; raising temperature; dropwise adding saturated aqueous solution of sodium p-styrene sulfonate and maleic anhydride into an attapulgite water system; dropwise adding ammonium persulfate aqueous solution serving as an initiator in 10-15 minutes; and stirring at a constant temperature and then performing evaporative crystallization to prepare the sulfonic acid group-containing attapulgite corrosion and scale inhibitor. The environment-friendly scale inhibitor synthesized by the invention has the advantages of wide raw material source, good water solubility, no secondary pollution caused to water, good tolerance to Ca<2+>, excellent scale inhibition effect on calcium carbonate and good ferric oxide dispersion effect. The preparation method has the advantages of cheap, simple and readily available raw materials, simple synthetic line and low reaction condition requirements; and the synthesized scale inhibitor has the advantages of good water solubility, good calcium carbonate scale inhibition and good ferric oxide dispersion performance.

Description

Technical field [0001] The present invention is a water treatment technology field, involving water treatment agents, and specially involves a sulfonic acid -containing bumpy soil corrosion resistance and its preparation methods and applications. Background technique [0002] The shortage of water resources is a severe problem that my country and the world are facing. my country is one of the countries with serious water resources. In today's increasingly tense water resources, improving the efficiency of industrial cooling water, can effectively reduce the demand for water resources, alleviate the pressure of water resources, EssenceOne of the most effective methods for improving the efficiency of industrial cooling water is the repetitive use of cyclic cooling water, but a serious problem brought by repeated use of recycled cooling water is the accumulation of salt, and the accumulation of salt will bring heat exchange equipmentThe problem of scaling and corrosion, developing a...

Claims

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Application Information

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IPC IPC(8): C02F5/10
Inventor 邱凤仙郭小瑞董科杨冬亚徐吉成
Owner JIANGSU UNIV
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