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Effects of leaching parameters on the dissolution of nickel, cobalt, manganese and iron from Caldag lateritic nickel ore in hydrochloric acid solution
Top S.a, Kursunoglu S.a, Ichlas Z.T.b
a Department of Materials Science & Nanotechnology Engineering, Abdullah Gul University, Kayseri, Turkey
b Faculty of Mining and Petroleum Engineering, Department of Metallurgical Engineering, Institut Teknologi Bandung, Bandung, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2020 Canadian Institute of Mining, Metallurgy and Petroleum.The effects of leaching parameters on the metal dissolutions from Caldag laterite ore using hydrochloric acid at atmospheric pressure were investigated. The following leaching parameters were examined to understand their effects on the dissolution of the metals: hydrochloric acid concentration, solid/liquid ratio, particle size, leaching temperature and time. Extractions of 95.8%Ni, 94.5%Co and 94.3%Mn into the leach solution were obtained along with a substantial amount of iron (81.5%) under the following conditions: 3.0 M HCl concentration, 90°C leaching temperature, 8 h leaching time, 1/5 solid/liquid ratio and −0.053 mm particle size. The hydrochloric acid consumption under these optimum conditions was found to be 543 kg t–1 ore. The results indicated that hydrochloric acid concentration and leaching temperature were the most important parameters affecting metal dissolutions. It was found that the dissolution of nickel did not exhibit a good linear correlation to that of manganese, which suggested that considerable amounts of nickel were not hosted in asbolane phase but also in other mineral phases such as goethite, haematite and clays. It was, however, found that most of the cobalt appeared to be hosted in asbolane. The semi-quantitative mineral analyses revealed that mineral dissolution order was as follows: calcite > goethite > haematite > lizardite ≥ chlorite-serpentine > asbolane > albite > kaolinite.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Acid concentrations,Hydrochloric acid solution,Lateritic nickel ores,Leaching parameters,Linear correlation,Mineral dissolution,Optimum conditions,Solid/liquid ratios[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Caldag,cobalt dissolution,hydrochloric acid,Laterite,nickel dissolution[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][{‘$’: ‘This work was partially supported by the Scientific and Technological Research Council of Turkey (TUBITAK) [Project No: 216M405]. This work was partially supported by The Scientific and Technological Research Council of Turkey (TUBITAK) [Project No: 216M405]. The authors are grateful to Professor Muammer Kaya from Eskisehir Osmangazi University for allowing the use of their facilities and collaboration. The authors thank the anonymous reviewers for improving the manuscript.’}, {‘$’: ‘This work was partially supported by The Scientific and Technological Research Council of Turkey (TUBITAK) [Project No: 216M405]. The authors are grateful to Professor Muammer Kaya from Eskisehir Osmangazi University for allowing the use of their facilities and collaboration. The authors thank the anonymous reviewers for improving the manuscript.’}][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1080/00084433.2020.1780560[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]