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Selective flocculation of ultrafine iron ore 2. Mechanism of selective flocculation
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 1995The mechanisms involved in the selective flocculation of hematite from kaolinite, using starch as the flocculant, have been investigated. Adsorption isotherms of starch on hematite and kaolinite were measured by a thermogravimetric method, supported by infrared analysis of the adsorbed species and zeta-potential changes on adsorption of starch.
P.K Weissenborn, L.J Warren, J.G Dunn
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Performance evaluation for selectivity of the flocculant on hematite in selective flocculation
International Journal of Minerals, Metallurgy, and Materials, 2013Increased demand for iron ore necessitates the utilization of low-grade iron ore fines, slimes, and existing tailings. Selective flocculation can be an alternative physico-chemical process for utilizing these low-grade fines, slimes, and tailings. In selective flocculation, the most critical objective is the selection of proper reagents that will make ...
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Microbially induced selective flocculation of hematite from kaolinite
International Journal of Mineral Processing, 2013Abstract Microbially induced selective flocculation of hematite from kaolinite has been demonstrated using Bacillus subtilis. Growth of bacterial cells in the presence of kaolinite resulted in enhanced production of extracellular proteins while that of hematite promoted significant secretion of exopolysaccharides. Bacterial cells were adapted to grow
S. Poorni, K.A. Natarajan
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Selective Flocculation of Chromite Tailings
Transactions of the Indian Institute of Metals, 2021Odisha state is the major reserve of the chromite ore. Due to the extensive applications, high-grade chromite ore is getting depleted day by day. Now it is a challenge for the industry to utilize these low-grade ores and tailings. Several attempts were taken to upgrade the low-grade chrome ores and tailings using different gravity separation methods ...
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