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Acquirement of Gold from Concentrate (Pezinok, Slovakia) with Utilization of Algae in Mechanochemical Processes by Jana Ficeriová; Erika Dutková; Zdenka LukáČová; Jarmila Harvanová is a Agricultural and Biological Sciences article available to read on EtoBox.

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## Abstract The deficiency of primary raw materials and the difficult processing of sulphide concentrates with low gold content, as well as the long-time use of the dangerous cyanide method, instigated to the search a more effective and environmentally conscious method of acquirement this noble metal. For this reason, this work was focused on gold obtaining from a refractory sulphide complex concentrate (Pezinok, Slovakia) with the application of the non-cyanide mechanochemico-biological process. Gold in this complex concentrate occurs physically enclosed in the intercrystalline space of sulphide minerals, and is also isomorphic and fills structure defects in sulphides. The exclusion of gold from such complex mineral matrices of the concentrate can be achieved by using a mechanochemico-biological process. This innovative process makes possible obtaining of gold using an application of a thiourea solution, which is a convenient alternative opposite to the toxic cyanidation method. The utilized of the biological process with the application of algae has shown that algae with siliceous structures make it possible to obtain of gold from a complex concentrate (Pezinok, Slovakia) with di

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Author

Jana Ficeriová; Erika Dutková; Zdenka LukáČová; Jarmila Harvanová

Publisher

IOP Publishing

Published

2020

Language

EN

Field

Agricultural and Biological Sciences (Physical Sciences)