The vanadium phase and valence state of stone-coal with low carbon in Guizhou province were analyzed by electron probe,and a pressure acid leach experiment was carried out.

• 利用电子探针分析方法对贵州某地低碳石煤中钒矿物和价态进行了分析,并对该矿石进行了加压酸浸试验研究。