摘要
采用L25(56)正交设计表,研究高铁闪锌矿精矿高氧催化氧化氨浸工艺的最佳工艺条件。结果表明,在25℃、氧分压为600kPa、液固比为7.0条件下,以碳铵-氨水-双氧水-催化剂体系氧化浸出高铁闪锌矿精矿8h,锌、铜、镉的浸出率分别可以达到93%,94%,91%,浸取液中不含铁。
The optimal condition for the ammonia catalytic oxidation of the high iron containing sphalerite with high pressure oxygen is investigated by orthogonal experiment using table of L25（56）.The results show that the leaching rates of zinc,copper,cadmium from the high iron containing sphalerite are up 93%,94% and 91%,respectively,by salvolatile-ammonia water-perhydrol-catalyst system under the condition of 25℃,600kPa oxygen partial pressure,7.0 L/S ratio,leaching time 8h,and there is no iron in solution.
出处
《有色金属》
CSCD
北大核心
2011年第2期155-158,共4页
Nonferrous Metals
基金
陕西省教育厅专项科学研究基金资助项目(98JK035)
陕西省教育厅专项科学研究基金资助项目(06JK305)
关键词
冶金技术
铁闪锌矿
催化氧化
氨水
浸出率
metal material
high iron containing sphalerite
catalytic oxidation
ammonia water
leaching rate
