Preparation method of composite material for removing chorine ion in water

A technology of composite materials and composite adsorption materials, which is applied in the field of preparation of composite materials, can solve problems such as high cost and complicated processing procedures, and achieve the effects of good crystallinity, large specific surface area, and increased specific surface area

Inactive Publication Date: 2018-02-06
湖北永绍科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high cost and complicated treatment process, and provides a preparation method of a composite adsorption material for removing chlorine ions in water

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] First put 1.5g SBA-15 in the reactor, then add 1.0mol / L magnesium sulfate solution and 0.15mol / L aluminum sulfate solution to mix, and keep stirring; Dissolve 28.5g sodium hydroxide and 2.651g sodium bicarbonate in Prepare a precipitating agent in 500ml of water, add the precipitating agent to the metal and SBA-15 mixed solution and mix thoroughly, hydrothermally crystallize at 50°C for 24 hours, wait for the mixed solution to precipitate and cool, then suction filter and wash until neutral to obtain Cake; dry the filter cake at 60°C for 24 hours and grind it into powder; put the dried filter cake in a roaster at 450°C for 10 hours, take it out and cool it at room temperature to obtain a molecular sieve wrapped with a layer of hydrotalcite Composite material; the composite adsorbent material prepared by the above method is added to the water containing chloride ion concentration of 2000mg / L, the amount of the adsorbent material added is 2% of the water weight, and after ...

Embodiment 2

[0018] First put 1.5g of HMS in the reactor, then add 1.0mol / L magnesium sulfate solution and 0.15mol / L aluminum sulfate solution and mix, stirring constantly; 30.5g sodium hydroxide and 3.975g sodium bicarbonate are dissolved in 500ml water Prepare a precipitant, add the precipitant to the mixed solution of metal and HMS and mix thoroughly, hydrothermally crystallize at 70°C for 12 hours, after the mixed solution is precipitated and cooled, filter with suction and wash until neutral to obtain a filter cake; The cake was dried at 100°C for 6 hours and then ground into powder; the dried cake was roasted in a roasting furnace at 500°C for 6 hours, and then cooled at room temperature to obtain a molecular sieve composite material wrapped with a layer of hydrotalcite; The composite adsorption material prepared by the above method is added to water containing chloride ion concentration of 1000mg / L, the amount of the added adsorption material is 2% of the water weight, and after adso...

Embodiment 3

[0020] First place 1.5g MCM-41 in the reactor, then add 1.0mol / L magnesium sulfate solution and 0.15mol / L aluminum sulfate solution and mix, stirring constantly; Dissolve 27.5g sodium hydroxide and 1.990g sodium bicarbonate in Prepare a precipitant in 500ml of water, add the precipitant to the mixed solution of metal and MCM-41 and mix thoroughly, hydrothermally crystallize at 60°C for 18 hours, after the mixed solution is precipitated and cooled, suction filter and wash until neutral to obtain Cake; dry the filter cake at 80°C for 18 hours and grind it into powder; put the dried filter cake in a calcination furnace at 480°C for 8 hours, take it out and cool it at room temperature to obtain a molecular sieve wrapped with a layer of hydrotalcite Composite material; the composite adsorbent material prepared by the above method is added to the water containing chloride ion concentration of 50mg / L, the amount of the adsorbent material added is 2% of the water weight, and after adso...

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Abstract

The invention relates to a preparation method of a composite adsorption material for removing chlorine ions in water, and belongs to the technical field of materials and environment. In the invention, solid magnesium salt raw material and aluminum salt are prepared into metal salt solution and mixed with molecular sieve, and a precipitating agent is added to load hydrotalcite formed by magnesium and aluminum on the surface of molecular sieve. The invention can effectively remove high-concentration chloride ions in waste water, and the composite material can be regenerated and reused. The preparation method of the composite material in the invention is simple, the source of raw materials is wide, the price is low, the process flow is simple, the equipment investment is small, there is no environmental pollution, and the chlorine removal efficiency is high.

Description

technical field [0001] The invention relates to a preparation method of a composite material for removing chlorine ions in water, belonging to the technical field of materials and environment. technical background [0002] Chloride ion is the most common anion in water and wastewater. Chloride ions will corrode steel pipes and affect the durability of steel pipes; if high-concentration chlorine-containing wastewater is discharged directly into rivers without treatment, it will destroy the natural ecological balance of the water body, deteriorate water quality, and lead to damage to fishery production, aquaculture and freshwater resources. When it is serious, it will pollute the groundwater and drinking water sources; when the chloride ion in the water reaches a certain concentration, it often reacts with the corresponding cation (Na + , Ca 2+ , Mg 2+ etc.) together, the water will have different taste changes, and the water quality will deteriorate the sensory properties;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30C02F1/28C02F1/58
CPCB01J20/18B01J20/041C02F1/288
Inventor 王永进王小赫郭忠诚王秋帏
Owner 湖北永绍科技股份有限公司
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