Preparation method of organic silicon adsorption material with purification function

An adsorption material and organosilicon technology, applied in chemical instruments and methods, inorganic chemistry, alkali metal compounds, etc., can solve the problems of complex synthesis methods and low separation efficiency, and achieve simple steps and reaction processes, good hydrophobicity, and low price low effect

Inactive Publication Date: 2014-04-09
HARBIN INST OF TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing an organic silicon adsorption material with a purification function in order to solve the technical problems of complex synthetic methods and low separation efficiency of the oil-water separation material in the existing sewage purification

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  • Preparation method of organic silicon adsorption material with purification function
  • Preparation method of organic silicon adsorption material with purification function
  • Preparation method of organic silicon adsorption material with purification function

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specific Embodiment approach 1

[0020] Specific embodiment one: the preparation method of the organosilicon adsorption material with purification function in this embodiment is carried out according to the following steps:

[0021] 1. Use ethanol, isopropanol or methanol as a solvent to prepare a silicone resin solution with a mass concentration of 15% to 50%, dissolve the catalyst in water or ethanol, and prepare a catalyst with a concentration of 0.2mol / L to 2.5mol / L solution, the silicone resin is a methyl silicone resin, and the catalyst is hydrochloric acid or ammonia;

[0022] 2. Under stirring conditions, add 5ml~10ml of catalyst solution dropwise into 10ml~20ml of silicone resin solution, and stir for 3min~5min to obtain organosilicon sol;

[0023] 3. Take 10ml~20ml of organic silica sol, add 0.2g~2g of polymer microspheres with a size of 0.5μm~20μm, seal it after ultrasonic dispersion, heat at 60°C for 20h~40h, then heat up to 70°C for 20h~40h, and get wet gel;

[0024] 4. Dissolve the wet gel obt...

specific Embodiment approach 2

[0025] Embodiment 2: This embodiment differs from Embodiment 1 in that the polymer microspheres described in step 3 are polystyrene microspheres or polymethyl methacrylate microspheres. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0026] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the organic solvent in step 4 is N,N-dimethylformamide, xylene or tetrahydrofuran. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a preparation method of an organic silicon adsorption material with a purification function, relates to a preparation method of an adsorption material, and solves the technical problems that the existing oil-water separation material synthesis method of sewage purification is complicated and the separation efficiency is low. The method comprises the following steps of: 1, dipping a catalyst solution into an organic silicon resin solution to obtain organic silica sol; and 2, adding polymer micro-balls into the organic silicon sol; ultrasonically dispersing and sealing; heating to obtain wet gel; dissolving and soaking the wet gel by utilizing an organic solvent to remove the polymer micro-balls; and then soaking the wet gel with the polymer micro-balls removed by utilizing ethanol for 10 hours, pouring out the ethanol and drying to obtain the organic silicon adsorption material with the purification function. The preparation method is simple and has high oil-water separation efficiency; the organic silicon adsorption material has abundant macro-porous and mesoporous structures; after a pore-forming agent is added, a large hole is formed so as to be good for increasing oil absorption amount; and the large hole and a small hole are communicated with each other, so that the through pore structure enables the oil to penetrate between the holes.

Description

technical field [0001] The invention relates to a preparation method of an adsorption material. Background technique [0002] The preparation method of the organosilicon adsorption material with purification function is a new type of material developed in order to cope with the current increasingly serious water pollution problem. [0003] The current preparation methods of oil-water separation materials usually involve multi-step reactions such as porous material synthesis and surface hydrophobic treatment. Research reports use silanization reagents to modify silica nanoparticles, and ordinary filter paper is used as raw material to prepare hydrophobic filter paper, which has oil-water separation effect and can be used in sewage purification and other fields. The method is based on the synthesis of silica and after hydrophobic modification, the modified silica is adsorbed on the filter paper. However, the synthesis method of the oil-water separation material in the existi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/28B01J20/30
Inventor 徐慧芳陈秋阳张群苑成策张海礁宋建伟黄玉东刘丽
Owner HARBIN INST OF TECH
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