hematite ore flotation

Hematite Processing by Flotation

Direct shipping of high grade iron ore, because of depletion or partial depletion of reserves, or high costs of operation has forced operators to use some means of beneficiation to produce an acceptable product with the lower grade iron ore reserves. Deposits of comparatively lower grade iron ore that remain relatively untouched or bypassed, are now most important because of increase in

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Hematite Ore, Hematite Mineral, Hematite Beneficiation

Hematite ore flotation process. The flotation process is mainly used for the separation of fine and microfine weak magnetic hematite ore, including positive flotation process (positive flotation of anionic collector) and reverse flotation process (negative flotation of cationic collector). Commonly used collectors include tallow fatty acid (soap), vegetable fatty acid (soap), paraffin soap

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Froth Flotation of Iron Ores Publications

the most popular flotation route in iron ore industry, the direct flotation of iron ox ides still appears desirable for some low grade iron ores that contain a vast amount of quartz. For example, at Republic Mine, Michigan, U.S.A., a hematite ore is upgraded from 36.5% Fe to 65.4% Fe with a Fe recovery of 82.5% using the direct flotation route.

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FLOTATION CHEMISTRY OF HEMATITE/OLEATE SYSTEM

flotation (hematite flotation) or indirect flotation (quartz flotation) techniques depending upon the nature of the available ore bodies. In direct flotation, iron bearing mineral, mostly hematite, is floated using oleate as collector leaving siliceous gangue, usually quartz, in the tailings. Kick et al. [1]

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Reverse flotation separation of hematite from quartz

The effect of magnetite as a magnetic seed on the flotation separation of fine hematite and quartz was studied by reverse microflotation and sedimentation. The results demonstrate that fine magnetite could selectively report to the pulp product with hematite particles, forming aggregates that avoided attachment to quartz particle surfaces.

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Flotation of rare earth minerals from silicatehematite

Starch has been used as depressant for hematite in the anionic flotation of igneous phosphate ores with tall oil fatty acid (Nanthakumar et al., 2009).

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