Electrochemistry of thiobacillus ferrooxidans reactions with pyrite: Technical progress report, January 15--April 15, 1989

Technical Report · Sun Jan 01 04:00:00 EST 1989

DOI:https://doi.org/10.2172/6245089· OSTI ID:6245089

Pesic, B.

The objective of this project is to provide the fundamental information on the mechanisms of bacterial leaching of pyrite. The knowledge of how bacterial leaching of pyrite works is essential for design and development of a technology for coal cleaning with bacteria. The features of major electrochemical techniques will be examined to find out if any of them can provide diagnostic information on the mechanisms of related reactions. This project will have several major research directions. One of them is the electrochemistry of interactions of Thiobacillus ferrooxidans with mineral pyrite, the second is the electrochemistry of bacteria interactions with coal pyrite. The third major direction is the role of Thiobacillus ferrooxidans cell components (amino acids and vitamins) during oxidation of ferrous iron with oxygen. The research results from these three directions will be used to elucidate the reactions involved during interaction of Thiobacillus ferrooxidans with pyrite. Results of cyclic voltametry are presented. 17 figs.

• Research Organization: Idaho Univ., Moscow, ID (USA). Dept. of Metallurgical and Mining Engineering
• DOE Contract Number: FG22-88PC88920
• OSTI ID: 6245089
• Report Number(s): DOE/PC/88920-T1; ON: DE89013103
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
550700 -- Microbiology
59 BASIC BIOLOGICAL SCIENCES
BACILLUS
BACTERIA
BIOCONVERSION
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
DISSOLUTION
DOCUMENT TYPES
ELECTROCHEMISTRY
FERMENTATION
IRON COMPOUNDS
IRON SULFIDES
LEACHING
MICROORGANISMS
MINERALS
OXIDATION
PROGRESS REPORT
PYRITE
REDOX REACTIONS
SEPARATION PROCESSES
SULFIDE MINERALS
SULFIDES
SULFUR COMPOUNDS
SULFUR-OXIDIZING BACTERIA
THIOBACILLUS FERROXIDANS
TRANSITION ELEMENT COMPOUNDS
VOLTAMETRY