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] SENANAYAKE G. Review of rate constants for thiosulphate leaching of gold from ores, concentrates and flat surfaces: Effect of host minerals and pH (Review) [J]. Minerals Engineering, 2007, 20(1): 1-15. 含铝废...Trans. Nonferrous Met. Soc. China 31(2021) 817-831 Leaching performance of Al-bearing spent LiFePO4 cathode powder in H2SO4 aqueous solution Wen-bo LOU1,2, Yang ZHANG2, Ying ZHANG2, Shi-li ZHENG2......
">The present work investigated microbial leaching of zinc from ore using Acidithiobacillus ferrooxidans (ATCC 14859). The ore samples, consisted of 13wt% zinc, were obtained from a gold mine in north-eastern...Bioleaching of zinc from gold ores using Acidithiobacillus ferrooxidansPakawadee Kaewkannetra1,Francisco Jose Garcia-Garcia2,Tze Yen Chiu31. Department of Biotechnology,Faculty of Technology,Khon......
and leaching for copper-bearing gold ores QIU Ting-sheng1, NIE Guang-hua2, ZHANG Qiang1, CHEN Jing-he3, ZOU Lai-chang3 (1. School of Civil and Environmental Engineering, University of Science... Co. Ltd., Shanghang 364200, China) Abstract: The copper-bearing gold ores were extracted from copper-leaching residues under the conditions of the partial oxygen pressure of 0.45MPa......
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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......
体系中过氧化氢起到了强化阴极过程和氧化硫化物的双重作用. 关键词: 金矿石; 氰化浸出; 重金属; 电化学 中图分类号: TF111.3 文献标识码: A Cyanide leaching of gold ores by heavy metal ions YANG Yong-bin, LI Qian, JIANGg Tao, JIN Yong-shi (Scholl... of cyanide leaching for gold occurring in an oxides ore and a sulfides concentrate, were studied on the basis of electrochemical investigation. The results indicate that these heavy metals greatly intensify......
低金的浸出率.因此,NH3·H2O浓度为1.8 mol/L较为合适. 图2 Na2SO3浓度对金浸出率的影响 Fig. 2 Effect of Na2SO3 concentration on gold leaching rate 图3 NH3·H2O浓度对金浸出率的影响 Fig. 3 Effect of NH3·H2O concentration on gold leaching rate 2.1.3 CuSO4浓度对金浸出率的影响 在Na2SO3 0.14 mol/L,NH3·H2O 1.8 mol/L,Na2CO3 0.1 mol/L,其他浸金工艺条件同上的条件下,分别进行不同CuSO4浓度的浸出试验.试验结果如图4所示. 图4 CuSO4浓度对金浸出率的影响 Fig. 4 Effect......
Trans. Nonferrous Met. Soc. China 22(2012) 1753-1759 Extraction of lithium from lepidolite using chlorination roasting-water leaching process YAN Qun-xuan, LI Xin-hai, WANG Zhi-xing, WANG Jie-xi...: Chlorination roasting followed by water leaching process was used to extract lithium from lepidolite. The microstructure of the lepidolite and roasted materials were characterized by X-ray......
Coupling leaching of sphalerite concentrate PENG Peng(彭 鹏)1, 2, XIE Hui-qin(谢惠琴)1, LU Li-zhu(卢立柱)1 (1. Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080, China; 2. Engineering Command Institute of Chemical Defence, Beijing 102205, China) Abstract: Coupling process of sphalerite concentrate leaching in H2SO4-HNO3 and tetrachloroethylene extracting of sulfur......
氰化尾液除铜 提高金氰化浸出率实践肖晓林1,2,周勋3(1.四川省成都市成都理工大学地球科学学院2.四川省成都市四川省冶金地勘局3.北京科技大学土木与环境工程学院)摘 要:松树南沟金矿氰化厂尾液含铜高,耗氰量大,金浸出率达不到设计指标.为解决这个问题,进行了长时间的试验研究.根据试验结果,采用两步沉淀法除铜,尾液全循环工艺,并进行了工业试验.试验结果表明,采用该工艺可以从氰化尾液中回收铜,提高金氰化浸出率,实现氰化尾液全循环.关键词:氰化； 金浸出率； 氰化尾液； 除铜； 全循环......
