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作者:... Yi Yang , Sam Yang , Jochen Petersen
来源:[J].Hydrometallurgy(IF 2.169), 2020, Vol.192
摘要:Abstract(#br)A long-term leach investigation was undertaken on particles of a sulfide ore to determine the nature of solution transport into large particles and to identify the primary roles concentrations of acid and oxidant on controlling solution transport. Bulk leaching ...
作者:Cledwyn Tawanda Mangunda , Jochen Petersen , Alison Emslie Lewis
来源:[J].Hydrometallurgy(IF 2.169), 2020, Vol.191
摘要:Abstract(#br)In the continuous lime neutralization treatment of iron-laden wastewaters, such as acid mine drainage (AMD), the solid-liquid separation of iron solids formed is difficult to effect. The particle formation mechanisms, the ensuing particle size and size distribut...
作者:Kathija Shaik , Jochen Petersen
来源:[J].Hydrometallurgy(IF 2.169), 2017
摘要:Abstract(#br)This study investigates the effectiveness of a combined thiocyanate-cyanide leach system in Pt and Pd containing minerals with a view to simplifying the traditional smelt-matte-refine process for PGE recovery by providing a route that is potentially more economi...
作者:Jochen Petersen , Rahul Ram ...
来源:[J].Hydrometallurgy(IF 2.169), 2019, Vol.184, pp.29-38
摘要:Abstract(#br)Apatite concentrate is an important source of phosphate and contains significant amounts of rare earth elements (REEs). In this study, the possibility of selective phosphoric acid leaching of phosphate and calcium from the Esfordi (Yazd province, Iran) apatite c...
作者:Jochen Petersen , Rahul Ram ...
来源:[J].Hydrometallurgy(IF 2.169), 2018, Vol.177, pp.66-78
摘要:Abstract(#br)The present study is focused on the leaching and recovery of phosphate and Rare Earth Elements (REEs) from the Esfordi phosphate concentrate (Yazd province, Iran), which contains 16.31% P, 37.13% Ca, 2.91% Fe, 3% F, 0.3% Cl, and the TREE content is 1.2%. Cerium,...
作者:... Xiyu Gao , Jochen Petersen , Miao Chen
来源:[J].Hydrometallurgy(IF 2.169), 2019, Vol.188, pp.1-13
摘要:Abstract(#br)The dissolution of metal sulfides, especially chalcopyrite and the development of porosity in samples of two different low-grade ores during chloride leaching have been studied by synchrotron-based micro-CT. Quantitative analysis of the changes was achieved by using ...
作者:Petrus J. van Staden , Andrei V. Kolesnikov , Jochen Petersen
来源:[J].Minerals Engineering(IF 1.207), 2017, Vol.101, pp.47-57
摘要:Abstract(#br)A method is provided for deriving the average macro-scale batch leaching kinetics of ore on a commercial heap on which portions of the heap (or cells) possess a range of leaching ages due to irrigation commencing while stacking is still in progress. It has been desig...
作者:James M. Mwase , Jochen Petersen
来源:[J].Hydrometallurgy(IF 2.169), 2017, Vol.172, pp.1-10
摘要:Abstract(#br)The mineral sperrylite (PtAs 2 ), unlike other Pt minerals, has shown to be resistant to cyanide leaching, even at elevated temperatures of 50 °C. This has prevented further development of a two-stage heap leaching process, of which the second stage is cyanide l...
作者:... Daryl Howard , Patricia J. Kooyman , Jochen Petersen
来源:[J].Chemical Geology(IF 3.154), 2019, Vol.522, pp.93-107
摘要:Abstract(#br)The Ambohimirahavavy igneous complex (Ampasibitika intrusion) in Madagascar hosts a world-class rare-earth element (REE) bearing ion-adsorption clay (IAC) resource. In this study, we present an in-depth chemical and mineralogical characterisation of selected sam...
作者:... Hyunjung Kim , Jochen Petersen , Susan T.L. Harrison
来源:[J].Hydrometallurgy(IF 2.169), 2018
摘要:Abstract(#br)This article explores a heap bioleaching technology for the removal of arsenic (As) from mine tailings using the GEOCOAT™ technique. Small-scale columns were operated at fixed temperatures of 20 °C, 30 °C, and 45 °C and at ramped-up temperatures from 25 °C ...

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