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High-ligand attapulgite clay adsorption material and preparation method

A technology of attapulgite clay and adsorption materials, which is applied to chemical instruments and methods, and other chemical processes, can solve the problems of increased application costs, complex synthetic routes, and long time consumption, and achieves improved adsorption selectivity, simple preparation methods, and improved The effect of adsorption capacity

Active Publication Date: 2011-01-19
常熟紫金知识产权服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although PAMAM dendrimers of different generations have been successfully industrialized, due to factors such as complex synthesis routes, long time-consuming, and difficult purification, commercialized PAMAM dendrimers are expensive and difficult to produce in larger quantities. applied within the scope of
In addition, PAMAM dendrimers are soluble in water and different organic solvents, so they cannot be recycled, which also increases its application cost to a certain extent and limits its application.

Method used

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  • High-ligand attapulgite clay adsorption material and preparation method
  • High-ligand attapulgite clay adsorption material and preparation method
  • High-ligand attapulgite clay adsorption material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: prepare adsorbent material according to the following specific steps:

[0026] (1) Put 4.0g of activated attapulgite in a container containing 50.0ml of anhydrous methanol solvent, stir and reflux under nitrogen protection, add 2.0mL methyl acrylate, and put it in a constant temperature water bath at 20°C for reflux reaction for 6 hours. The product was washed three times with a mixture of tetrahydrofuran and dichloromethane with a volume ratio of 2:1, and dried under vacuum at 45°C to obtain 0.5 generation PAMAM for use;

[0027] (2) Put 2.1g of 0.5-generation PAMAM in a container containing 80.0ml of anhydrous methanol solvent, stir and reflux under nitrogen protection, add 3.0ml of anhydrous ethylenediamine, and put it in a constant temperature water bath at 20°C for 6 hours of reflux reaction , the reaction product was washed three times with a mixture of tetrahydrofuran and dichloromethane with a volume ratio of 2:1, and dried under vacuum at 45°C to ...

Embodiment 2

[0029] Embodiment 2: prepare adsorbent material according to the following specific steps:

[0030] (1) Put 4.0g of activated attapulgite in a container containing 100.0ml of anhydrous methanol solvent, stir and reflux under the protection of nitrogen, add 9.0mL of methyl acrylate, put it in a constant temperature water bath at 40°C for 39 hours, and react The product was washed three times with absolute ethanol, and dried under vacuum at 45°C to obtain 0.5 generation PAMAM for future use;

[0031] (2) Put 2.1g of 0.5-generation PAMAM in a container containing 115.0ml of anhydrous methanol solvent, stir and reflux under nitrogen protection, add 13.5ml of anhydrous ethylenediamine, and put it in a constant temperature water bath at 40°C for 39 hours to reflux , the reaction product was washed three times with absolute ethanol, and dried under vacuum at 45°C to obtain 1.0 generation PAMAM.

[0032] Decolorize reactive red 3BS150% dye wastewater with 0.05g of 1.0 generation PAMA...

Embodiment 3

[0033] Embodiment 3: prepare adsorbent material according to the following specific steps:

[0034] (1) Put 4.0g of activated attapulgite in a container containing 150.0ml of anhydrous methanol solvent, stir and reflux under the protection of nitrogen, add 16.0mL methyl acrylate, and put it in a constant temperature water bath at 60°C for 72 hours. The product was washed three times with a mixture of tetrahydrofuran and dichloromethane with a volume of 1:1, and dried under vacuum at 45°C to obtain 0.5 generation PAMAM for use;

[0035] (2) Put 2.1g of 0.5-generation PAMAM in a container containing 150.0ml of anhydrous methanol solvent, stir and reflux under nitrogen protection, add 24.0ml of anhydrous ethylenediamine, and put it in a constant temperature water bath at 60°C for 72 hours to reflux , the reaction product was washed three times with absolute ethanol, and dried under vacuum at 45°C to obtain 1.0 generation PAMAM.

[0036] Decolorize reactive red 3BS150% dye wastew...

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Abstract

The invention discloses a high-ligand attapulgite clay adsorption material and a preparation method. The preparation method comprises the following steps of: performing Michael addition reaction on an active site of an activated attapulgite clay surface and methyl acrylate, performing amidation reaction with ethylene dimine to obtain a first generation product, and repeatedly reacting the first generation product, the methyl acrylate and the ethylene dimine for n times to prepare a PAMAM composite material of different generations of n+1. The preparation method is simple and easy to operate, and has wide application prospect; and the adsorption material can be used for treating dye in a water body, heavy metal, a dye intermediate with sulfonic acid group and organic acid.

Description

technical field [0001] The invention relates to a high ligand attapulgite clay adsorption material and a preparation method thereof, in particular to a high ligand attapulgite / polyamide-amine type dendritic macromolecular composite adsorption material and a preparation method thereof. Background technique [0002] Attapulgite (Attapulgite, ATP, referred to as Attapulgite), is a layer chain structure of magnesium aluminum silicate clay mineral, which is a rare non-metallic mineral resource. Attapulgite is widely used in many fields because of its unique fibrous or rod-like crystal morphology and layer-chain crystal structure endowing it with a large specific surface area and unusual colloid and adsorption properties. [0003] As an important field of attapulgite industrialization, attapulgite adsorption materials have always been the focus of research and development. The treatment processes of heat treatment, acid treatment, alkali treatment and organic ammonium salt are ma...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30
Inventor 赵宜江周守勇薛爱莲王春香李梅生张艳褚效中
Owner 常熟紫金知识产权服务有限公司
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