Removal of Pyrrhotite from High-Sulphur Tailings Utilising Non-Oxidative H2SO4 Leaching

Autor: Jarno Mäkinen, Grzegorz Pietek, Ville Miettinen, Mohammad Khoshkhoo, Jan-Eric Sundkvist, Päivi Kinnunen

Publikováno v: Minerals, Vol 12, Iss 12, p 1610 (2022)

Tailings are a residual material stream produced in the mineral processing of ores. They may contain a major sulphide content that increases the risk of acid rock drainage (ARD) but may also host valuable metals. Tank bioleaching is a technically via

Externí odkaz: https://doaj.org/article/212c410b982d46d4a6a8ddc858bc1660

Bioleaching of cobalt from sulfide mining tailings; a mini-pilot study

Autor: Päivi Kinnunen, Jarno Mäkinen, Marja Salo, Mohammad Khoshkhoo, Jan Eric Sundkvist

Publikováno v: Mäkinen, J, Salo, M, Khoshkhoo, M, Sundkvist, J E & Kinnunen, P 2020, ' Bioleaching of cobalt from sulfide mining tailings; a mini-pilot study ', Hydrometallurgy, vol. 196, 105418 . https://doi.org/10.1016/j.hydromet.2020.105418

Tailings are remaining processing waste streams from mines, disposed after valuable minerals extraction from the mined ore. Tailings contain varying concentrations of residual valuable metals that are currently lost due to lack of economical treatmen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33301fa6078c69bce21f541e8b3679e9
https://cris.vtt.fi/en/publications/766b3f7e-9942-4435-aa49-407ad4046520

Isotopic signature of Cu and Fe during bioleaching and electrochemical leaching of a chalcopyrite concentrate

Autor: Björn Öhlander, Nathalie Pérez Rodríguez, Lena Alakangas, Mohammad Khoshkhoo, Ilia Rodushkin, Åke Sandström

Publikováno v: International Journal of Mineral Processing. 134:58-65

Bioleaching is an important process in metallurgy and in environmental sciences, either for the acquisition of metals or for the formation of acid rock drainage. In this study the implications of the processes during bioleaching of a pyritic chalcopy

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::239b90c63b1b8bfd694b4cb5a37ec8ea
https://doi.org/10.1016/j.minpro.2014.11.010

Bioleaching and Electrochemical Leaching of a Pyritic Chalcopyrite Concentrate

Autor: Mohammad Khoshkhoo, Mark Dopson, Åke Sandström

Publikováno v: Advanced Materials Research. 825:254-257

Moderately thermophilic bioleaching of a pyritic chalcopyrite concentrate was mimicked in an electrochemical vessel. The bioleaching was carried out for 28 days at 45°C with 2.5% (wt/vol) solid content at pH 1.5. Data from the redox potential develo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34c925152e53a92fd2315d1c2319ac46
https://doi.org/10.4028/www.scientific.net/amr.825.254

Modelling and process optimisation of antimony removal from a complex copper concentrate

Autor: Paul Kruger, Samuel Ayowole Awe, Åke Sandström, Mohammad Khoshkhoo

Publikováno v: Transactions of Nonferrous Metals Society of China. 22:675-685

The modelling and optimization for the alkaline sulphide leaching of a complex copper concentrate containing 1.69% Sb and 0.14% Sn were studied. Response surface methodology, in combination with central composite face-centred design (RSM-CCF), was us

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2538abd59d06eb71ec4bcfc618f452f0
https://doi.org/10.1016/s1003-6326(11)61231-4