Bioleaching of Platinum from Tailings in the Krušné Hory Mountains

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Bioleaching of Platinum from Tailings in the Krušné Hory Mountains

Popis výsledku v původním jazyce

This study explores the bioleaching of platinum group metals (PGMs) from polymetallic sulfide ores using the bacterium Acidithiobacillus ferrooxidans. Samples from two mining sites, Mikulov and Lehnschafter, were subjected to bioleaching experiments in the presence and absence of catalytic additives. Copper sulfate (CuSO4) and silver nitrate (AgNO3) were tested as catalysts to enhance platinum recovery. X-ray fluorescence spectroscopy (XRF) was employed to monitor the platinum content over a 28-day period. The results demonstrated that Cu2+ ions significantly accelerated platinum dissolution, leading to a reduction in platinum concentration from 3549 mg/kg to zero in the Lehns sample. In contrast, the addition of Ag+ ions showed no significant effect. This research underscores the potential of biotechnological methods, specifically bacterial leaching, as an eco-friendly and efficient approach for extracting platinum group metals from ore, especially with the aid of catalytic agents like copper.

Název v anglickém jazyce

Bioleaching of Platinum from Tailings in the Krušné Hory Mountains

Popis výsledku anglicky

This study explores the bioleaching of platinum group metals (PGMs) from polymetallic sulfide ores using the bacterium Acidithiobacillus ferrooxidans. Samples from two mining sites, Mikulov and Lehnschafter, were subjected to bioleaching experiments in the presence and absence of catalytic additives. Copper sulfate (CuSO4) and silver nitrate (AgNO3) were tested as catalysts to enhance platinum recovery. X-ray fluorescence spectroscopy (XRF) was employed to monitor the platinum content over a 28-day period. The results demonstrated that Cu2+ ions significantly accelerated platinum dissolution, leading to a reduction in platinum concentration from 3549 mg/kg to zero in the Lehns sample. In contrast, the addition of Ag+ ions showed no significant effect. This research underscores the potential of biotechnological methods, specifically bacterial leaching, as an eco-friendly and efficient approach for extracting platinum group metals from ore, especially with the aid of catalytic agents like copper.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20800 - Environmental biotechnology

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Biotechnology &amp; Metals 2024 : 6th International Scientific Conference on Biotechnology and Metals : October 10-11, 2024, Stará Lesná, High Tatras, Slovakia : proceedings

ISBN

978-80-89883-15-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

118-123

Název nakladatele

Slovak Academy of Sciences

Místo vydání

Tatranská Lomnica

Místo konání akce

Stará Lesná

Datum konání akce

10. 10. 2024

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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