CoP非晶合金催化分解磷化氢制高纯磷的研究

Research on Decomposition of Phosphine to High Pure Phosphorus Using Co-P Amorphous Alloy as Catalyst

以次磷酸钠为还原剂、柠檬酸钠为配体，用化学还原法制备CoP非晶态合金．利用Co-P非晶态合金来催化分解磷化氢制备半导体级高纯黄磷，可以使磷化氢的实际分解温度从800～1000C降低到约470℃．得到的黄磷纯度为99．99％，磷化氢的实际分解率99．80％；黄磷中砷含量降至3μg／g以下，可以作为优质黄磷使用．

Co-P amorphous alloy was used as catalyst to decompos phosphine to high pure phosphorus. The decomposition temperature of phosphine decreases from 800～1 000℃ to 470℃. The purity of phosphorus is 99.99 % ,the decomposition rate of phosphine is 99.8%.