Microbial desulfurization of coal

Details Microbial desulfurization of coal Microbial desulfurization of coal

1978-05-05

1980-06-03

Halper, Robert

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Treating animal or plant material or micro-organism

435282, 209 9, 210 7, C07G 1700

Patent

active

042062888

ABSTRACT:
A process for the removal of pyrite from coal wherein an aqueous slurry containing finely-divided coal particles is subjected to the action of iron and sulfur oxidizing microorganisms selected from the Thiobacillus ferrooxidans group in a concentration range of between about 3.times.10.sup.10 and 1.times.10.sup.12 cells per gram of pyrite present in the coal slurry.

REFERENCES:
patent: 2829964 (1958-04-01), Zimmerley
patent: 3007235 (1961-09-01), Duncan
patent: 3218252 (1965-11-01), Glover
patent: 3305353 (1967-02-01), Duncan
patent: 4080287 (1978-03-01), Comby
Silverman et al., Studies on the Chem. Autotophic Iron Bacterium Fenobacillus ferrooxidans, Syracuse Univ., 326-331, Dent of Bact. & Botony 2/1959.
Silverman et al., Fenobacillus ferrooxidans, Syracuse Univ., 10/1958, p. 642-647.
Silverman, Rmoval of Pyritic Sulfur from Coal by Bact. Action Fuel, vol. 42(2), Mar. 1963, 113-124.
Acid Mine Drainage Formation & Abutment, Ohio State Research Foundation for EPA, Program No. FWPCA Grant No. 14010 FRR, Apr. 1971, pp. 55, 67.
Dugan et al., Microbiol. Desulf. of Coal, Ohio State Univ., 1978, pp. 1-28.

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