我们研究的目的是想在铸铁生产方面采用CO_2型砂,并在山东地区推广.水玻璃是玻璃制造及铝矿石提纯过程中的副产品,这种工业山东省很多,应当充分利用.目前水玻璃在济南的市价是0.26元/公斤,更是有利条件.我们曾将济南某厂现有的几种原砂作了基本理化性质的测定,选择了性质最好、价格最低的原砂作水玻 The purpose of our study is to use CO 2 sand in the production of cast iron and promote it in Shandong Province.Water glass is a byproduct in the process of glass making and aluminum ore purification.This kind of industry in Shandong province should be fully utilized.At present, The market price is 0.26 yuan / kg, is more favorable conditions.We have a factory in Jinan some of the existing original sand made the determination of the basic physical and chemical properties, choose the best nature, the lowest price of raw sand for water glass