研究了加压氰化法从失效汽车催化剂中选择性浸出铂族金属 ,考察了加压氰化过程影响金属浸出率的各种因素。实验结果表明 :对 2 0 0 g处理批量的小实验铂族金属氰化浸出率分别达到Pt98% ,Pd99% ,Rh96 % ;千克级放大实验可完全重现小实验结果 ,且该工艺也适应于其他类型失效催化剂的处理。 The selective cyanidation of platinum group metals from spent catalyst was studied by pressure cyanidation. Various factors affecting the leaching rate of metal were investigated. The experimental results show that the leaching rate of Pt-PGMs reaches Pt98%, Pd99% and Rh96% respectively for the small batch of 200 g, and the kilogram-scale enlargement experiment can completely reproduce the small experimental results, and the process is also suitable for Treatment of other types of spent catalyst.