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Modified resin material, and preparation method and usage thereof

A technology of modified resin and reflux reaction, applied in chemical instruments and methods, other chemical processes, improvement of process efficiency, etc., can solve the problems of high price, poor selectivity, low mechanical strength, etc., achieve stable performance, easy separation, The effect of low material cost

Active Publication Date: 2018-06-26
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resin adsorption method has the characteristics of good enrichment and separation effect, high efficiency, and easy operation; however, traditional ion exchange resins usually have poor selectivity, low mechanical strength, and high price

Method used

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  • Modified resin material, and preparation method and usage thereof
  • Modified resin material, and preparation method and usage thereof
  • Modified resin material, and preparation method and usage thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The modified resin material has a structural formula of:

[0025]

[0026] The preparation method of this modified resin material, its concrete steps are as follows:

[0027] (1) Add polyvinylpyrrolidone to the glycidyl methacrylate solution at a liquid-solid ratio of 3:1ml / g, and then add azobisisobutyronitrile (the solution of which and the glycidyl methacrylate solution solid ratio of 84:1ml / g), and finally add ethanol solution (the liquid-solid ratio of polyvinylpyrrolidone and polyvinylpyrrolidone is 49:1 ml / g), reflux at 60°C for 5h, and separate the liquid and solid, and take out the solid material with a free Washed with water and ethanol, centrifuged and dried in vacuum, the obtained product was labeled as PGMA.

[0028] (2) Add the PGMA obtained in step (1) to the mixed solution of ethanol acetic acid dissolved with 8-aminoquinoline (the solid-to-liquid ratio of PGMA to ethanol solution is 19:1 ml / g, the solid-to-liquid ratio of PGMA to acetic acid solutio...

Embodiment 2

[0032] The modified resin material has a structural formula of:

[0033]

[0034] The preparation method of this modified resin material, its concrete steps are as follows:

[0035] (1) Add polyvinylpyrrolidone to the glycidyl methacrylate solution at a liquid-solid ratio of 3.3:1 ml / g, and then add azobisisobutyronitrile (which is mixed with glycidyl methacrylate solution) The liquid-solid ratio is 84.5:1 ml / g), and finally add ethanol solution (the liquid-solid ratio with polyvinylpyrrolidone is 49.5:1 ml / g), reflux at 70°C for 4 hours, separate the liquid and solid, and take out the solid substance After washing with absolute ethanol and centrifuging, drying in vacuum, the obtained product was labeled as PGMA.

[0036] (2) Add the PGMA obtained in step (1) to the mixed solution of ethanol acetic acid dissolved with 8-aminoquinoline (the solid-to-liquid ratio of PGMA to ethanol solution is 19.5:1 ml / g, the solid-to-liquid ratio of PGMA to acetic acid solution is 1: 2.5 ...

Embodiment 3

[0040] The modified resin material has a structural formula of:

[0041]

[0042] The preparation method of the modified silicon dioxide nanoparticles, its specific steps are as follows:

[0043] (1) Add polyvinylpyrrolidone to the glycidyl methacrylate solution at a liquid-solid ratio of 3.5:1ml / g, and then add azobisisobutyronitrile (the solution of the glycidyl methacrylate solution) solid ratio of 85:1ml / g), and finally add ethanol solution (the liquid-solid ratio of polyvinylpyrrolidone and polyvinylpyrrolidone is 50:1ml / g), reflux at 75°C for 4.5h, and then separate the liquid and solid, and take out the solid material with free Washed with water and ethanol, centrifuged and dried in vacuum, the obtained product was labeled as PGMA.

[0044] (2) Add the PGMA obtained in step (1) to the mixed solution of ethanol acetic acid dissolved with 8-aminoquinoline (the solid-to-liquid ratio of PGMA to ethanol solution is 20:1 ml / g, the solid-to-liquid ratio of PGMA to acetic a...

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Abstract

The invention relates to a modified resin material, and a preparation method and usage thereof, and belongs to the technical field of material preparation. The method is as below: adding azobisisobutyronitrile and polyvinylpyrrolidone successively into a mixed solution of glycidyl methacrylate and ethanol, conducting a reflux reaction under nitrogen atmosphere, separating a liquid from a solid, taking out the solid, washing the solid with absolute ethyl alcohol, and conducting centrifugal separation and vacuum drying to obtain a product marked as PGMA; and adding the obtained PGMA and 8-aminoquinoline successively into a mixed solution of ethanol and acetic acid, conducting a reflux reaction and liquid-solid separation, taking out the solid, washing the solid with distilled water, and conducting centrifugal separation and vacuum drying to obtain a final product marked as AL-PGMA. The resin can be used as an adsorbent for absorbing palladium ions from acidic leachate, and has the advantages of low material costs, simple preparation method, easy separation from aqueous solution, high adsorbability and reusability.

Description

technical field [0001] The invention relates to a modified resin material and its preparation method and application, belonging to the technical field of material preparation. Background technique [0002] Palladium is an important precious metal element and an indispensable catalyst in the petroleum industry with a wide range of applications. With the increase of catalysts, hydrogen storage materials, and electronic materials, the amount of palladium is also increasing. There are few separate palladium ores, which are mainly extracted from by-product mines of heavy metal smelting; in addition, the solution of gold production also contains a large amount of palladium. [0003] At present, the extraction methods of palladium mainly include sodium bisulfite method, extraction method, amalgam method, adsorption method and so on. The resin adsorption method has the characteristics of good enrichment and separation effect, high efficiency, and easy operation; however, tradition...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C22B3/24C22B11/00
CPCC22B3/24C22B11/04B01J20/265Y02P10/20
Inventor 王仕兴张冰彭金辉张利波付立康
Owner KUNMING UNIV OF SCI & TECH
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