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Biooxidation of a Sulfide Gold Ore in Columns.

Authors
Mihaylov-BV; Hendrix-JL
Source
For Reference Only At Bureau Libraries :15 pages
Link
NIOSHTIC No.
10011137
Abstract
Bacterial oxidation of a low-grade sulfide gold ore was investigated in order to enhance leaching of gold. The experiments were carried out in columns using mixed cultures of thiobacillus ferrooxidans isolated from the ore. Fractions with different screen analyses were oxidized in two regimes--one pass of the solution and circulating solution. Constant temperature and flow rate of the percolating solution were maintained during the experiments. A correlation between the concentrations of copper and iron in the solution leaving the columns and ph and eh values was observed. The effect of bacterial activity was proved by means of thiourea and cyanide leaching of the oxidized ore.
Publication Date
19910101
Document Type
CP; Final Contract Report;
Fiscal Year
1991
NTIS Accession No.
NTIS Price
Identifying No.
OFR 23-92
NIOSH Division
WO;
Source Name
For Reference Only At Bureau Libraries
State
NV;
Performing Organization
University of Nevada--Reno
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