论文部分内容阅读
稻壳在过去被认为是无用的东西,其实它有很高的化工用途.目前国内外已利用稻壳生产出了多种化工产品.一是用稻壳制造陶瓷器皿.稻壳中含有15%～18%的二氧化硅.从稻壳中提取二氧化硅,其成本要比从岩石中提取低得多.二是用稻壳灰代替硅石制取四氧化硅,制取温度要比用硅石作原料低.
Husk in the past is considered useless things, in fact, it has high chemical use.Now at home and abroad have used rice husk to produce a variety of chemical products.One is the use of rice husk to make ceramic ware.Has a rice husk contains 15% ~ 18% of the silica extracted from the rice husk, the cost is much lower than the extraction from the rock. Second is the use of rice husk ash instead of silica to obtain silicon dioxide, the system temperature than silica Low raw materials.