BIO-LEACHING COMPOSITIONS AND METHODS FOR MINING METALS

Bioleaching compositions for processing ores or other matter including metal or metal salt are presented, where the bioleaching composition includes a biosurfactant and metal solubilizing reagents. The biosurfactant can be a sophorolipid biosurfactant (SLP) and the metal solubilizing reagents includ...

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Bibliographic Details
Main Authors MAHMOUDKHANI, AMIR, KNESEL, GABRIELA, FARMER, SEAN, ROGERS, JONATHAN
Format Patent
LanguageEnglish
Published 14.11.2024
Subjects
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:Bioleaching compositions for processing ores or other matter including metal or metal salt are presented, where the bioleaching composition includes a biosurfactant and metal solubilizing reagents. The biosurfactant can be a sophorolipid biosurfactant (SLP) and the metal solubilizing reagents include an acid and an oxidant or a microorganism. In methods of bioleaching using the bioleaching composition, the metals from the ores can be isolated from a solution phase or from a non-solution phase. The subject invention further provides compositions derived from microorganisms for pre-leaching treatments of the metal source, which can be used for reducing impurities in metal source. The use of the bioleaching composition enhances the rate of extraction and/or the throughput of the process.
Bibliography:Application Number: US202318249244