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. The atmospheric pressure leaching experiments were also carried out. The experimental results show that the leaching rate of indium can be effectively improved by oxidative pressure leaching. The optimum conditions of pressure leaching are determined as sulfuric 5.10 mol/L acid, leaching time 150 min, temperature 90 ℃, and the H2O2 dosage of 0.5 mL/g or 2.5% KMnO4. The leaching rate of indium is more than 90......
of leaching pH value on the effect of sulfosalicylic acid on aluminum inhibition was studied,the result shows that,when the leaching pH value is 4.0-5.0,the rare earth leaching rate and the aluminum ion...Molecular dynamics simulation of aluminum inhibited leaching during ion-adsorbed type rare earth ore leaching processDongmei Zhu1,Tingsheng Qiu1,Jianfeng Zhong1,Qinghua Zeng2,Xihui Fang11. School......
of leaching pH value on the effect of sulfosalicylic acid on aluminum inhibition was studied,the result shows that,when the leaching pH value is 4.0-5.0,the rare earth leaching rate and the aluminum ion...Molecular dynamics simulation of aluminum inhibited leaching during ion-adsorbed type rare earth ore leaching processDongmei Zhu1,Tingsheng Qiu1,Jianfeng Zhong1,Qinghua Zeng2,Xihui Fang11. School......
improve leaching rate of weathering crust IATRE and the sedimentation rate, and reduce consumption of reagents. Key words:ion-absorbed type rare earth; magnetic treatment; leaching; deposit; rare...Behavior of leaching and precipitation of weathering crust ion-absorbed type by magnetic field FANG Yanxi1,QIU Tingsheng1,CUI Lifeng1,FANG Xihui1 (1.Jiangxi University of Science and Technology......
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96.66 wt%. The cyanidation results showed that the cyanide gold leaching rate of acid leaching residues was close to 100 wt%. However, the maximum cyanide gold leaching rate of gold calcine was only 85.31 wt%. This suggests that acid leaching can increase the gold dissolution rate in the cyanide process.关键词:......
高含泥氧化铜矿石分粒级筑堆技术及其应用王洪江1,吴爱祥1,顾晓春2,张新普3,张仪3(1.北京市北京科技大学土木与环境工程学院2.云南铜业集团公司3.迪庆矿业开发有限责任公司)摘 要:高含泥氧化矿石浸堆因渗透性差而影响堆浸的正常进行.渗透试验表明,高含泥氧化矿石矿堆的渗透性与矿石粒级组成密切相关,采取矿石堆浸粒级划分:-1 mm为泥质物,+5 mm为块状矿,5~1 mm之间为粉状矿.在此基础上,提出了分粒级筑堆技术,即先对矿石进行分级,然后按粒级分区筑堆,对不同粒级浸堆采用不同的布液强度.该项技术应用在云南某铜......
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边磨边浸过程中氰化物耗量大的机理探索蓝碧波1(1.福建省龙岩市上杭县紫金矿冶设计研究院)摘 要:对边磨边浸过程氰化物耗量大的原因进行了探索研究.研究结果表明:边磨边浸过程中产生的铁粉会消耗大量的氰化物;此外,在边磨边浸过程中部分氰化物可能水解挥发或被氧化分解.关键词:边磨边浸； 铁； 氰化物耗量； 金浸出率......
concentration, particle size of crude ore and agitation rate on the leaching efficiency of copper were also evaluated. And the kinetic equations of the leaching process were obtained. The results show... rate. When the liquid-solid reaction produces compact solid, the process of leaching must be controlled by pervasion, and its kinetic equation can be expressed as follows[10]: ......
