CAJ | 학술논문

研究了采用3种加压氧化方式从铜阳极泥中浸出有价金属 ,考察了阳极泥中铜、碲、硒、银的走向.结果表明 :直接氧压酸浸 ,阳极泥中的硒被部分浸出 ,不利于集中回收 ;氧压碱浸工艺流程长 ,工艺复杂 ,银被分散 ;水浸—氧压酸浸过程中 ,控制体系温度130 ℃ ,氧压0 .8 M Pa ,铜浸出率达98 .3% ,碲浸出率为46 .8% ,硒浸出率仅0 .11% ,银集中在渣中 ,有利于下一步集中回收.3种工艺中 ,以水浸—氧压酸浸效果最佳.
연구료채용3충가압양화방식종동양겁니중침출유개금속 ,고찰료양겁니중동、제、서、은적주향.결과표명 :직접양압산침 ,양겁니중적서피부분침출 ,불리우집중회수 ;양압감침공예류정장 ,공예복잡 ,은피분산 ;수침—양압산침과정중 ,공제체계온도130 ℃ ,양압0 .8 M Pa ,동침출솔체98 .3% ,제침출솔위46 .8% ,서침출솔부0 .11% ,은집중재사중 ,유리우하일보집중회수.3충공예중 ,이수침—양압산침효과최가.
Leaching of valuable metals from copper anode slime by three oxygen pressure process was investigated .The distribution of copper ,tellurium ,selenium and silver in the processes were examined . The results show that by the direct oxygen pressure-acid leaching process ,selenium is partially leached out which is not conducive to enrich of selenium in leaching residues .The process of water leaching-oxygen pressure alkali leaching is lengthy and complex ,the silver is dispersed in the leaching solution . By water leaching-oxygen pressure acid leaching process ,under the conditions of temperature of 130℃ ,oxygen pressure of 0 .8 M Pa ,the leaching rate of copper ,tellurium and selenium are 98 .3% ,46 .8%and 0 .11% ,respectively ,and the silver is concentrated in leaching residues .So the water leaching-oxygen pressure acid leaching process is recommended to further research .