Biomineral Processing for Extraction of Metal Values from Ores/Concentrates/Wastes

Pandey, B D and Mehta, K D and Kumar, Vinay and Singh, S and Giri, A K (2007) Biomineral Processing for Extraction of Metal Values from Ores/Concentrates/Wastes. Other (TMP). CSIR-NML, Jamshedpur. (Submitted)

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Lean copper ore (-0.3-0.4% Cu) of Malanjkhand Copper Project (MCP) is a granite rock with copper as chalco-pyrite in the quartz veins. XRD identification of the ore showed chalcopyrite, pyrite and silica as major phases and bornite being the minor phase. The wild strains of Acidi-thiobacillus ferrooxidans (Tf) isolated from source mine water in 9K+ medium were used for bioleaching. On bench scale with non-adapted Tf isolate, maximum (72%) Cu biodissolution was found at 2.0 pH, 5%PD using <50um particles at 35oC temperature in 40 days. Whereas, using Tf isolate adapted on 5%(w/v) ore at 2.0pH and 25oC, copper biorecovery rose to 75% under same conditions.

Item Type:Project Reports (Other (TMP))
Official URL/DOI:
Uncontrolled Keywords:bioleaching; nonferrous metals; low grade ores; copper; uranium
Divisions:Metal Extraction and Forming
ID Code:6510
Deposited By:Sahu A K
Deposited On:12 Jul 2013 10:09
Last Modified:12 Jul 2013 10:09
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