Physical Desulfurization of Iowa Coal by Flotation, June 1977

(1977) Physical Desulfurization of Iowa Coal by Flotation, June 1977. Iowa State University


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An experimental investigation was carried out to develop a flotation technique for the efficient beneficiation of Iowa coal fines that could be applied on a pilot plant scale at the Iowa State University coal preparation plant. Flotation techniques found to be effective on Appalachian coals were studied to determine their effectiveness on Iowa coals. A single-stage flotation technique using metal salts was studied at different pH values. The effects of metal salt concentrations and different frother agents were also examined. Flotation techniques that performed well on Appalachian coals were found to be less effective on Iowa coals. The metal salts tested behaved more as coal activators than as pyrite depressants. The frothers examined exhibited collector like properties. A single-stage flotation technique using l0-4M concentration of metal salts and MIBC as the frother was found to effectively beneficiate Iowa coal fines.

Item Type: Departmental Report
Keywords: Iowa, Mining Equipment, mines, mining, strip mining, coal
Subjects: Natural resources and environment
Natural resources and environment > Earth sciences
Natural resources and environment > Energy resources > Coal
Natural resources and environment > Environmental assessments
ID Code: 49157
Deposited By: Margaret Barr
Deposited On: 17 May 2024 20:21
Last Modified: 17 May 2024 20:21