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High purity silicon dioxide is fine ceramics, optical fiber, and the basic materials of solar cell industries. For example, the porous high purity SiO2 can be used as the carrier of certain light-emitting materials, can also be used as raw materials for the preparation of high purity silicasol. With the development of modern electronic industry demand for high purity SiO2 will increase increasingly. In order to find cheap production way, people using rice husk as raw material to extract high purity SiO2. Rice husk is a kind of silicon content rich natural material, the mass fraction of SiO2 is in commonly 18% ~ 22.1%, and the rest for trace metal elements and organic materials. In high temperature and high pressure, therefore, the strong oxidizing acid medium can be organic matter decomposition, and the trace metal elements into soluble ion and remove.

Gas phase silica is widely used in silicone rubber, paint, ink and copier toner, adhesive, cable materials, and unsaturated polyester resin, plant protection, food and cosmetics, can play a reinforcing, thickening, resistance to agglomerate, rheology and thixotropy control system etc.  

Is widely used in rubber, plastic filler of precipitated silicon dioxide reinforcing agent, thickening agent of printing ink, paint, paint additives, synthetic and silicone grease thickener, smoothing agent, pesticides dispersant, leather-making industry papermaking filler, synthetic resin, polyester resin, elastic polyurethane) additive adiabatic insulation filler, electrical and electronic industry and daily chemical raw materials and other industries at the same time as polypropylene, non-toxic PVC plastic film opening agent and anticaking agent and carrier of food, pesticide medicine.  

With non-metallic mineral preparation of silica white is widely used in silicone rubber, paint, ink and copier toner, adhesive, cable material, and unsaturated polyester resin, can play a reinforcing, thickening, resistance to agglomerate, rheology and thixotropy control system etc.. Especially with non-metallic mineral containing a small amount of non-metallic mineral composition in the preparation of silica white, a small amount of non-metallic mineral composition combination of silica white and silicon dioxide/non-metallic mineral composite packing, not only has the silica white, the respective functional non-metallic, and has a good synergistic effect, can widen the sphere of color, light color rubber filler.

 

 

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