难选氧化锑矿的真空热还原

VACUUM THERMAL REDUCTION OF DIFFICULTY-DRESSED ANTIMONY OXIDE ORE

对难选氧化锑矿的真空热还原作了理论上的分析，并报道了试验的结果。试验结果表明真空碳热还原难选氧化锑矿可以在较低的温度、较少的还原剂量时获得大于90％以上的挥发率。试验指出，在真空中用碳还原难选氧化锑矿时，为了获得较高的挥发率，或者在较低的温度、较少的还原剂条件下，使Sb主要以气态Sb2O3的形态挥发，或者在较高的温度、较多的还原剂条件下，使Sb主要以液态Sb的形式蒸发。

Vacuum carbon thermal reduction of difficulty-dressed antimony oxide ore is theoretically discussed and the experimental results are shown in this peper. More than 90 percent of the antimony rate of volatilization can be obdried at lower temperature and lower reductor in the reduction process of the ore. It is also shown that,to acquire higher rate of volatilhation,the condition,which is either at lower temperature and reductor or at higher temperature and reductor,is needed to volatilize antimony mainly in the form of gaseous Sb2O3 and liquid Sb,respectively.