自六十年代以来,环境保护与处理三废工作引起许多国家特别是工业发达国家的重视.由于某些非金属矿物原料资源丰富,价格低廉,具有消除污染的良好效果,不会造成新的污染,同时还可回收有益组分及可供其他用途的气体,以增加经济收益.为此, Since the 1960s, the work of environmental protection and disposal of the three wastes has attracted the attention of many countries, especially industrialized countries. Due to the abundant resources and low prices of some non-metallic mineral raw materials, it has the good effect of eliminating pollution and will not cause new pollution. At the same time, beneficial components and gases for other uses can also be recovered to increase economic benefits.