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Preparation of epicholorohydrin-dimethylamine kation alta-mud grain

A polyepichlorohydrin and dimethylamine cation technology, applied in the environmental field, can solve problems such as no bentonite particles, and achieve the effects of excellent adsorption performance, economical efficiency and reasonable design

Inactive Publication Date: 2008-09-03
SHANDONG UNIV
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  • Application Information

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Problems solved by technology

At present, there are many studies on the modification of quaternary ammonium salt surfactants, but there is no research on modifying bentonite particles with quaternary ammonium salt cationic polymers.

Method used

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  • Preparation of epicholorohydrin-dimethylamine kation alta-mud grain
  • Preparation of epicholorohydrin-dimethylamine kation alta-mud grain
  • Preparation of epicholorohydrin-dimethylamine kation alta-mud grain

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Embodiment

[0026] The preparation method of polyepichlorohydrin dimethylamine cationic bentonite particles, the steps are as follows:

[0027] (1) In parts by weight, weigh 20.0 g of dried sodium-based bentonite, 4.0 g of coal powder, and 0.4 g of starch in an open glass container, add water, stir evenly and adjust to viscous, and pass through 20 mesh Sieve extrusion granulation and drying to obtain bentonite particles with a diameter of 1-2mm;

[0028] (2) Place the particles prepared above in a muffle furnace, burn them at a high temperature of 600°C for 6-8 hours, and cool them down to room temperature naturally to make porous bentonite particles;

[0029] (3) According to the ratio of porous bentonite particles: polyepichlorohydrin dimethylamine solution=1g: 25mL, polyepichlorohydrin dimethylamine solution is added to organically load the prepared porous bentonite particles to obtain porous bentonite particles and The reaction solution of polyepichlorohydrin dimethylamine solution; ...

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Abstract

A method for preparing polyamine flocculant cationic bentonite particles is provided, which belongs to the technology field of environment protection. The method includes the following steps: preparing porous bentonite particles by mixing sodium bentonite, coal powder and soluble starch at the given ratio, and then modifying the porous bentonite particles with cationic polymer, polyamine flocculants, to obtain polyamine flocculant cationic bentonite particles. The product is solid and whitish yellow in color, and has an organic content of 15.2 mg / g and covers a specific surface area of 16.46 m<2> / g. The inventive method has the advantages of reasonable design, simple process and low cost. The prepared polyamine flocculant cationic bentonite particles have stable quality, uniform appearance and excellent adsorbability. The invention is of wide application value for decolorization treatment of dyeing waste water.

Description

technical field [0001] The invention relates to polyepichlorohydrin dimethylamine cationic bentonite particles and a preparation method thereof, belonging to the field of environmental technology. Background technique [0002] With the development of the dye industry and the improvement of printing and dyeing technology, the decolorization of printing and dyeing wastewater has become a major problem to be solved urgently in domestic and foreign wastewater treatment. Most printing and dyeing factories adopt a combination of chemical treatment and biological treatment. Biochemical treatment uses microorganisms to degrade organic matter, but the degradation rate of harmful substances in the treatment process is low, the investment in equipment is large, and the operating cost is high. The problem of chromaticity has not yet been well solved. . Therefore, choosing a simple, economical and effective treatment method has become the research focus of printing and dyeing wastewater...

Claims

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Application Information

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IPC IPC(8): B01J20/12B01J20/26B01J20/32
Inventor 岳钦艳原爱娟李倩高宝玉
Owner SHANDONG UNIV
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