E3S Web Conf.
Volume 266, 2021Topical Issues of Rational Use of Natural Resources 2021
|Number of page(s)||8|
|Section||Technologies of Complex Processing of Mineral Raw Materials|
|Published online||04 June 2021|
Use of tailings in mn dissolution from marine nodule matrix
Department of Metallurgy and Mining Engineering, Universidad Católica del Norte, Chile
The nodules are spherical bodies that are scattered within the sedimentary zone of the seabed, and their growth is closely associated with the biogeochemical processes and water sediments. These nodules are mainly composed of Mn, Fe, SiO2, Ca, Ni, Cu, Co and Al. Manganese nodules are an excellent source of base metals and sought-after and rare elements and the fact that they are used as a base elements matrix will be in high demand in industry. Previous studies have shown that primary con-centrations of chemical such as Fe in the system are beneficial for increas-ing manganese extraction. However, it is necessary to optimize the opera-tional parameters so as to maximise Mn recovery. This work investigates the effect of using of tailings, obtained after slag flotation ata foundry plant on the dissolution of Mn from marine nodules, where statistical analysis was distributed using factorial experimental design ontime, MnO2/Fe2O3 ratio, and H2SO4 concentration.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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