Bioflotation of a Black Shale Copper Ore

Irena Spasova; Marina Nicolova; Stoyan N. Groudev

doi:10.4028/www.scientific.net/AMR.20-21.358

Paper Titles

Effect of LPS Removal on Electrophoretic Softness of Acidithiobacillus ferrooxidans Cells
p.341

Is the Quorum Sensing Type AI-1 System of Acidithiobacillus ferrooxidans Involved in its Attachment to Mineral Surfaces?
p.345

Pyrite Surface Alteration of Synthetic Single Crystals as Effect of Microbial Activity and Crystallographic Orientation
p.350

The Catalytic Influence of Sulfolobus metallicus in the Bioleaching of Chalcopyrite: Role of Attached and Planktonic Population
p.354

Bioflotation of a Black Shale Copper Ore
p.358

Surface Hydrophobicity of an Acidophilic Heterotrophic Bacterium of Mine Origin under Metal Stress
p.362

Selective Coagulation in Chalcopyrite/Pyrite Mineral System Using Acidithiobacillus Group Bacteria
p.366

Combined Atomic Force and Fluorescence Microscopy of Biofilms formed by Leaching Bacteria on Opaque Substrata
p.371

Novel Steel Corrosion Protection by Microbial Extracellular Polymeric Substances (EPS) – Biofilm-Induced Corrosion Inhibition
p.375

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 20-21Bioflotation of a Black Shale Copper Ore

Bioflotation of a Black Shale Copper Ore

Abstract:

A sample of black shale fraction of copper ore from the Lubin deposit, Poland, was subjected to pretreatment by different microorganisms to improve the copper recovery during the subsequent flotation. Chemolithotrophic bacteria grown on So and S2O3 2- were used to depress pyrite before flotation by means of ethyl xantate as collector. Sulphate-reducing bacteria were used to perform a prior sulphidization of the black shales before flotation by means of the same collector. Two-stage flotation experiments were carried out in which initially the gangue minerals of the ore were depressed by means of “silicate” bacteria and then, during the flotation of the non-floated product from the first stage, the pyrite was depressed by means of pretreatment with So- grown chemolithotrophs. In all these cases the microbial pretreatment had positive effect on the copper recovery.

You might also be interested in these eBooks

Biohydrometallurgy: From the Single Cell to the Environment

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 20-21)

Pages:

358-361

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.20-21.358

Citation:

Cite this paper

Online since:

July 2007

Authors:

Irena Spasova, Marina Nicolova, Stoyan N. Groudev

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] A. Grotowski, in: Perspectives for Applying Bioleaching Technology to Process Shale-bearing Copper Ores, edited by A. Antoniuk, KGHM Polska Miedz, Wroclaw (2006), p.7.

Google Scholar

[2] A. Luszczkiewwicz, Z. Konopacka and J. Drzymala, in: Perspectives for Applying Bioleaching Technology to Process Shale-bearing Copper Ores, edited by A. Antoniuk, KGHM Polska Miedz, Wroclaw (2006), p.29.

Google Scholar

[3] S.N. Groudev, I.I. Spasova, P.S. Georgiev, M.V. Nicolova and L. Kuzev , in: Perspectives for Applying Bioleaching Technology to Process Shale-bearing Copper Ores, edited by A. Antoniuk, KGHM Polska Miedz, Wroclaw (2006), p.65.

Google Scholar

[4] K.M. Yellogi Rao, K.A. Natarajan and P. Somasundaran: Miner. Metall. Process., 9 (1992), p.95.

Google Scholar

[5] P.K. Sharma, PhD Thesis, University of Lulea, Sweden (2001).

Google Scholar

[6] C.C. Townsley, A.S. Atkins and A.J. Davis: Biotech. Bioeng., 30 (1987), p.1.

Google Scholar

[7] N. Deo and K.A. Natarajan: Int. J. Miner. Process., 56 (1998), p.41.

Google Scholar