硫酸烧渣综合利用

Comprehensive Utilization of Burned Slags of Sulphuric Acid Making

综述了我国硫烧渣综合利用技术的发展。目前用于水泥工业的烧渣约占烧渣产量的 2 5 %～ 30 %。在铁系颜料、铁的化工产品、选矿制铁矿粉有一定应用。最近几年在选矿制铁矿粉方面的研究较活跃 ,煤基直接还原铁粉冷固成型金属化团块新工艺引人注目 。

The development of China's comprehensive utilization techology of burned slag of sulphuric acid making is reviewed. At present, the burned slag used in cement industry accounts for about 25%～ 30% of its production. It has also found some use in producing pigments of iron series, chemical products and iron ore powder. Recent years have seen an active research in its use in making iron ore,an attractive new technology of cold formed metallized pellet by the coal based direct reduction of iron ore powder while the research of the desulphurizing agent of the burned slag remains to be strengthened.