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on extraction ratio of zinc. Key words: sphalerite; H2SO4-HNO3; coupling leaching CLC number: TF111.31 Document code: A 1 INTRODUCTION With diminishing mineral resources and more stringent policy...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......
concentrate of sphalerite by the selected bacteria was carried out. 2 Materials and methods 2.1 Mineral and ore The chemical components of pyrrhotite are not fixed and the structural formula could... ores [J]. Conservation and Utilization of Mineral Resources, 1994(4): 40-43. (in Chinese) [6] GARCIA J O, MIGHAM B J, TUOVIMEN O. Sphalerite oxidation by Thiobacillus ferrooxidans and thiobacillus......
of the concentrate and the indirect bioleaching of the sphalerite. Many conclusions were drawn from the bioleaching of zinc sulfide mineral by iron-oxidizing bacteria, especially A. ferriooxidans. However... the oxidized surface components. 2.2 Leaching media Bioleaching of sphalerite was carried out in shake flasks containing 1% mineral sample (m/V) and iron-free 9K nutrient media; the pH value......
, sphalerite is the landmark mineral of different zoning. From I-1 to I-3, the color of sphalerite changes from dark to light, its crystalline size changes from coarse to fine, and its structure changes from disseminated to veinlet. This mineral zoning is seen not only on a microscopic scale, but is also clear on a mesoscopic and macroscopic scale. It is caused by the order of the sphalerite and galena......
Effect of mineral processing wastewater on flotation of sulfide minerals CHEN Jian-ming(陈建明)1, 2, LIU Run-qing(刘润清)1, SUN Wei(孙 伟)1, QIU Guan-zhou(邱冠周)1 1. School of Resource... of mineral processing wastewater on sulfide minerals were investigated by flotation, infrared spectrometry and electrochemistry test. The results show that lead-concentrate water can improve the flotation......
sphalerite can be easily floated. Key words: sphalerite; lattice impurity; DFT calculation; copper activation 1 Introduction Sphalerite is an important Zn-bearing mineral and the primary source... process of sphalerite at high temperature (500-600 ℃). As the flotation reaction occurs at the first layer of the mineral surface, this study mainly discusses the effect of Fe, Mn and Cd impurities......
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;12). The XPS tests of galena, sphalerite and pyrite in the CDR system showed that in the strong alkaline solution (in the depressing process) some of the collectors are desorbed from mineral surface...%), is speedily reactivated after the pulp potential increases above 0.215 mV. Compared with the original mineral [1-2, 5], in the CaO depressing system, the flotation behaviors of pyrite or sphalerite......
and Technology2. Southwest Institute of Geological Survey Center for Non-ferrous Mineral Resources,Kunming University of Science and Technology摘 要:The type, size, and compositions of fluid inclusions in a natural sphalerite were investigated and the total concentration of Zn released from the fluid inclusions was measured. To compare the total......
in the mineral leaching process. Therefore, many researchers have intensively studied the influence of catalytic agents on the oxygen pressure leaching of sphalerite: GHOSH et al [10] investigated..., ZENG Yong. Surface chemistry of Pb-activated sphalerite [J]. Minerals Engineering, 2020, 145: 106058. DOI: 10.1016/j.mineng.2019.106058. [9] FOMCHENKO N V, MURAVYOV M I. Effect of sulfide mineral......