现在,高梯度磁场分离方法在国外使用很广泛。最近,美国化学家宣布:他们成功地采用高梯度磁场分离煤中的硫。煤中的硫在燃烧时生成二氧化硫,这是严重的环境污染物。国外对这方面的要求很严格,不充许有二氧化硫排放。但是,煤中伴随着硫化物质,如要把煤当作燃料,就 Now, high-gradient magnetic field separation methods are widely used abroad. Recently, U.S. chemists announced that they successfully used high-gradient magnetic fields to separate sulfur from coal. Sulfur in coal generates sulfur dioxide when it is burned, which is a serious environmental pollutant. Foreign requirements in this regard are very strict, do not allow sulfur dioxide emissions. However, the coal is accompanied by sulfur compounds, such as coal to be used as fuel