Method for preparing wastewater heavy metal adsorbing material by using ionothermal system

An adsorption material and ion heat technology, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve the problems of low synthesis yield and high synthesis cost of zeolite molecular sieves, and the reaction is also easy to control and produce. Low cost and good hole forming effect

Inactive Publication Date: 2017-12-22
长沙埃比林环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the synthesis cost of existing zeolite molecular sieves is relatively high, and the synthesis yield of zeolite molecular sieves is also low. Therefore, it is necessary to explore new and green molecular sieve synthesis routes, devote ourselves to reducing the synthesis cost of molecular sieve materials, and find new breakthroughs in molecular sieve synthesis. Promote the application of molecular sieves in industrial fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The 2-methylimidazole and bromoethane were mixed in a 2:1 ratio, put into a three-necked beaker and stirred, and the three-necked beaker was heated and evaporated at 80° C. for 5 hours to obtain a bromide ionic liquid. Urea and choline chloride are mixed uniformly according to 3:1, and the solid mixture is melted by heating at 80°C to obtain a eutectic solvent. The bromide ionic liquid, the eutectic solvent, aluminum nitrate, and sodium silicate are mixed according to a ratio of 0.5:1.5:2:3, and stirred at 90° C. to make them uniformly mixed to obtain a homogeneous mixture. Put the homogeneous mixture in a reaction kettle with a polytetrafluoroethylene lining, and then put it in an oven, the temperature of the oven is 120°C, take it out after 72 hours of reaction, and then rapidly cool under the protection of nitrogen, then filter, and then Wash with distilled water and wash 4-6 times to pH=7-7.5, and then dry it to obtain a primary solid. The primary solid is added to ...

Embodiment 2

[0034] The 2-methylimidazole and bromoethane were mixed in a 2:1 ratio, put into a three-necked beaker and stirred, and the three-necked beaker was heated and evaporated at 80° C. for 6 hours to obtain a bromide ionic liquid. Urea and choline chloride are mixed uniformly according to 3:1, and the solid mixture is melted by heating at 80°C to obtain a eutectic solvent. The bromide ionic liquid, the eutectic solvent, aluminum nitrate, and sodium silicate are mixed in a ratio of 0.7:2:3:4, and stirred at 90° C. to make them uniformly mixed to obtain a uniform mixture. Put the homogeneous mixture in a reaction kettle with a polytetrafluoroethylene lining, and then put it into an oven, the temperature of the oven is 130°C, take it out after 72 hours of reaction, and then rapidly cool under the protection of nitrogen, then filter, and then Wash with distilled water and wash 4-6 times to pH=7-7.5, and then dry it to obtain a primary solid. The primary solid is added to the solution c...

Embodiment 3

[0036] The 2-methylimidazole and bromoethane were mixed in a 2:1 ratio, put into a three-necked beaker and stirred, and the three-necked beaker was heated and evaporated at 80° C. for 7 hours to obtain a bromide ionic liquid. Urea and choline chloride are mixed uniformly according to 3:1, and the solid mixture is melted by heating at 80°C to obtain a eutectic solvent. The bromide ionic liquid, the eutectic solvent, aluminum nitrate, and sodium silicate are mixed in a ratio of 1:3:4:5, and stirred at 90° C. to make them uniformly mixed to obtain a homogeneous mixture. Put the homogeneous mixture in a reaction kettle with a polytetrafluoroethylene lining, and then put it in an oven, the temperature of the oven is 140°C, take it out after 72 hours of reaction, and then rapidly cool under the protection of nitrogen, then filter, and then Wash with distilled water and wash 4-6 times to pH=7-7.5, and then dry it to obtain a primary solid. The primary solid is added to the solution c...

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PUM

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Abstract

The invention relates to a method for preparing a wastewater heavy metal adsorbing material by using an ionothermal system. The method comprises the following steps: mixing 2-methylimidazole with bromoethane, and carrying out stirring, heating and an evaporating reaction to obtain bromide ionic liquid; uniformly mixing urea with choline chloride and uniformly heating for melting to obtain a deep-eutectic solvent; mixing and stirring the bromide ionic liquid, the deep-eutectic solvent, aluminum nitrate and sodium silicate, putting a mixture into a reaction still, and then putting into a baking oven; after the reaction ends, taking out a reactant for cooling, filtering, washing and drying to obtain a primary solid; adding the primary solid into a solution containing sodium hydroxide and then stirring the solution under the condition of water bath heating; filtering the stirred solution to obtain a final solid; cooling the final solid; drying the cooled final solid and then grinding the dried final solid to obtain a zeolite adsorbing material. The method disclosed by the invention has the advantages of being simple in preparation technology, environment friendly and low in energy consumption; reaction conditions are easy to meet; the zeolite adsorbing material has high purity and good adsorbing effect.

Description

Technical field [0001] The invention relates to the field of environmental protection, in particular to a method for preparing wastewater heavy metal adsorption materials under an ion heat system. Background technique [0002] With the continuous development of human society, while economic development brings benefits, it also produces a lot of pollution. The rapid increase in industrial "three wastes" and the increase in automobile exhaust emissions, the pollution of heavy metals in soil, water, and plants in the human living environment has become increasingly serious, which has become a prominent ecological problem in the coordinated development of economy, society and the environment. Heavy metals are generally not biodegradable, and once they enter water or soil, they are difficult to remove. They can enter the human body through the food chain and cause many diseases (such as cancer). [0003] Adsorption is an effective physical and chemical water treatment method, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/30C02F1/28C02F101/20
CPCB01J20/18C02F1/281C02F2101/20
Inventor 不公告发明人
Owner 长沙埃比林环保科技有限公司
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