Production method of Al-Mg hydrotalcite composite polystyrene multi-component copolymerization ion exchange resin

Abstract

The invention discloses a production method of Al-Mg hydrotalcite composite polystyrene multi-component copolymerization ion exchange resin. The method comprises the concrete steps of water phase and oil phase preparation, composite resin microsphere preparation and ion exchange resin synthesis, wherein a resin microsphere framework is prepared from styrene, methyl methacrylate and vinyl trimethoxy silane through crosslinking. The polystyrene multi-component copolymerization ion exchange resin provided by the invention has the advantages that the high-temperature resistant performance is good; the chemical resistant stability is high; the application range is wide; meanwhile, the mechanical intensity is high; the pore diameter uniformity is good; the ion exchange volume is high; the adsorption performance on various organic contaminants such as N, P and dyestuff is good; the production method is applicable to organic waste water treatment.

Description

technical field [0001] The invention relates to a production method of an ion exchange resin, in particular to a production method of an aluminum-magnesium hydrotalcite composite polystyrene multi-component copolymerization ion exchange resin. Background technique [0002] Ion exchange resin is an important class of adsorption and separation materials. It is a porous spongy solid polymer substance in structure. Each resin particle is composed of a cross-linked network skeleton with a three-dimensional three-dimensional structure, and many movable particles are connected to the skeleton. functional basis. It is insoluble in general acid-base solutions and organic solvents, and can be used in various fields such as water treatment, food, pharmaceutical, petrochemical and environmental protection, and is playing an increasingly important role in modern industry. [0003] At present, the most widely used ion exchange resin is polystyrene-based resin, which has the advantages of...

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Problems solved by technology

However, this type of resin has low thermal stability and is greatly affected by the use temperature, which limits its application range. It also has poor chemical stability, poor mechanical strength, and especially poor compression resistance, which also affects its service life. , so it is necessary to improve its comprehensive performance

CN201310172597 introduces the copolymerization of long-chain flexible monomer octadecyl methacrylate and styrene, thereby improving the compressive strength of ion exchange resin microspheres, but this method can only improve the compressive performance of polystyrene resin, and cannot comprehensively improve Its uniformity, thermal stability, chemical stability and other comprehensive properties are difficult to meet the current demand for higher quality ion exchange resins, and its application range is limited