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Radiation synthetic method for high-speed selective adsorption material

A technology of adsorption materials and synthesis methods, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve problems such as no patent application, and achieve environmental load reduction, strong controllability, comprehensive economy significant effect

Inactive Publication Date: 2012-11-21
HUBEI UNIV OF SCI & TECH
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Problems solved by technology

[0004] After searching, there is no patent application identical to the present invention in China

Method used

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  • Radiation synthetic method for high-speed selective adsorption material

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Embodiment 1

[0026] Use polyethylene or polypropylene resin particles (average diameter of about 100μ) as the polymer substrate, put 10g of the above material into a nitrogen-containing PE bag, and use a high-energy electron accelerator to irradiate to produce activity that can be used for grafting reactions. Free radicals; the irradiation conditions are irradiation voltage 2MeV, irradiation dose 200 kGy, dose rate 10 kGy / pass, and the above-mentioned particles after irradiation are immediately put into a mixture of 35% GMA, 3.5% polyoxyethylene sorbitan monolaurate and In the emulsion reaction system composed of 61.5% water, the emulsification reaction system of GMA monomer was continuously blown with nitrogen for 30 minutes before use to discharge the oxygen in the water. The graft polymerization reaction was carried out at 50°C for 2h. The grafted polymer obtained under the above conditions: the grafting ratio of the polyethylene substrate is 200%, or the grafting ratio of the polypropy...

Embodiment 2

[0027] Embodiment 2: two kinds of adsorption resin dynamic adsorption characteristic comparisons

[0028] Fill 7.5ml of the polyethylene-based adsorption resin prepared in Example 1 into an adsorption column in a wet state. The size of the adsorption column is φ16×38mm, and evaluate its dynamics by injecting a pre-prepared boron-containing aqueous solution. Adsorption characteristics, the concentration of boron-containing aqueous solution is 26 mg / L, and the flow rate of 2.5 ml / min passes through the resin bed; for the convenience of comparison, at the same time, the existing cross-linked polystyrene resin substrate, N-methyl- Glucosamine is the commercial resin IRA-743 with adsorption functional group, and its adsorption characteristics were evaluated according to the same experimental conditions.

[0029] Dynamic adsorption evaluation experimental conditions: adsorption column size φ16×38mm, resin volume 7.5ml, boron-containing aqueous solution concentration 26mg / L, flow rate ...

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Abstract

The invention relates to a preparation method for a high polymer adsorption resin and especially to a radiation synthetic method for a high-speed selective adsorption material directed at elements like boron and germanium in water. According to the method, a high polymer substrate is exposed to ionizing radiation to produce reactive free radicals; the irradiated high polymer substrate and the glycidyl methacrylate or chlorobenzene alkene intermediate monomers undergo graft copolymerization; then an alcohol amine compound with a polyhydroxy structure is introduced through a ring opening reaction of an epoxy group and a substitution reaction of a halogen element so as to synthesize series novel adsorption resins capable of replacing traditional adsorption resins. The synthetic method provided by the invention has a high grafting ratio, reduces environmental load of a synthesis process and enables no catalyst to remain in a grafting product; the synthesized material has the advantages of a high-speed adsorption characteristic, high adsorption capacity, reduced application cost and significant comprehensive economic benefits and is especially applicable as a high-speed adsorption material for semimetal elements in a low concentration environment, and the material can be popularized and applied as a high-speed selective adsorption material for elements like boron and germanium in water.

Description

technical field [0001] The invention relates to a preparation method of a polymer adsorption resin, in particular to a radiation synthesis method of a high-speed selective adsorption material for semi-metal elements such as boron and germanium in water. Background technique [0002] Boron, germanium and other elements are special elements between metals and non-metals in the periodic table, also known as semi-metallic elements. These elements generally produce amphoteric oxides, and most of them are semiconductors. Due to these characteristics of semi-metallic elements, they can be widely used and become indispensable industrial raw materials for high-tech industries such as semiconductor components and electronic products; at the same time, industrial wastewater in these fields usually contains the above elements, which should be recycled and utilized; Some traditional industries, such as electroplating and glass processing, also use a large amount of boron, and the boron i...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30C02F1/28
Inventor 赵龙李月生张光学杜纪富黄亚琼孙绍发
Owner HUBEI UNIV OF SCI & TECH
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