Preparation method of molecular imprinting desulfuration fiber membrane

Abstract

The invention discloses a preparation method of a molecular imprinting desulfuration fiber membrane. The desulfuration fiber membrane is prepared from the following raw materials: calcium carbonate, stearic acid, white oil, gamma-aminopropyltriethoxysilane, benzothiophene, polyvinyl nitrile, polyurethane and tetraethoxysilane. The method has the advantages that calcium carbonate is subjected to dispersion modification, the problem that the calcium carbonate is easy to agglomerate is avoided, the affinity of the calcium carbonate to organic polymer is improved, the calcium carbonate is more closely combined with molecular imprinting particles, the calcium carbonate serving as a filler can further improve the tensile strength of fiber membrane, rapid and efficient adsorptive removal is realized through the improvement of the preparation method of molecular imprinting and serving the benzothiophene as a functional monomer, the desulfuration efficiency of the desulfuration fiber membrane is high, the desulfuration fiber membrane is pollution-free during use, a cycle use mode further greatly reduces the cost, the defects of the current various mainstream desulfuration methods can be overcome, and the demands on desulfurization facilities by industrial enterprises can be met through the adoption of the method.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a method for preparing a molecularly imprinted desulfurization fiber membrane. Background technique [0002] In recent years, with the development of the economy, good resources such as coal and ore have become less and less, and more and more high-sulfur coal and high-sulfur ore resources have been used in sintering and thermal power production, and the sulfur content of flue gas has gradually increased. Aiming at the desulfurization of iron and steel sintering machines, various sintering flue gas desulfurization technologies have been developed successively. Among them, the wet desulfurization process represented by the limestone gypsum process is widely used, but this desulfurization method has low desulfurization efficiency and secondary generation of scrubbing flue gas. Polluted water leads to the problem of secondary pollution; dry semi-dry desulfurization...

AI Technical Summary

Problems solved by technology

Organic molecularly imprinted polymers are available for different monomers and are widely used, but when this material is in contact with different mobile phases, it is easy to collapse and swell, thereby reducing the adsorption performance; compared with organic polymers, all-inorganic molecules Imprinted polymers have the characteristics of ideal mechanical strength, large specific surface area, and better photochemical stability; hybrid molecular imprinted materials have the advantages of both inorganic and organic imprinted materials, showing better application prospects, but due to the There are still many problems in imprinting in terms of hybridization methods, material selection, and synthesis methods. Therefore, the synthesis and application of hybrid molecularly imprinted materials are still in the exploratory stage.