The vanadium phase and valence state of stone-coal with lowcarbon 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。
2
Modification function of phosphoric acid to low temperature carbon based on polyacrylonitrile was investigated.
研究了磷酸对聚丙烯腈基低温碳材料的改性作用。
3
The surface chemistry of a high modulus and a low modulus carbon fiber, both before and after nitric acid oxidation, were studied by X-ray photoelectron spectroscopy (XPS) and chemical derivatization.