Beneficiation of low grade Magnetite from Salem, Madras: Part I

Banerjee, S K and Narayanan, P I A (1958) Beneficiation of low grade Magnetite from Salem, Madras: Part I. Other (TMP). CSIR-NML, Jamshedpur, Jamshedpur.

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The results of studies on beneficiation of a magnetite ore assaying 36.5% Fe and 44.2% SiO2 and containing principal magnetite, quartz, hematite, goethite, Kyanite and sillimanite are presented. Dry magnetic separation of the sample did not produce satisfactory results. Wet magnetic separation at -40 and -65 mesh sizes yielded magnetic assaying 62.5% Fe, 11.1% SiO2 and 64.3% Fe, 9.6% SiO2 with a recovery of about 68% iron in both cases. Dry magnetic separation at -10 mesh followed by wet magnetic separation of the rougher concentrate at -40 mesh produced a final concentrate assaying 65.21% Fe and 8.0%SiO2 with an overall recovery of 82.8% Fe, but higher recovery could be obtained at the expense of grade of the concentrates . Tabling at -40 mesh and magnetic separation at -65 mesh can, therefore, yield nearly the same results, because the slime and tailing loss during tabling almost balanced the loss of hematite in the non-magnetite product. Results obtained by pilot plant trails employing tabling as well as magnetic separation are also presented.

Item Type:Project Reports (Other (TMP))
Uncontrolled Keywords:Low grade Magnetite, magnetic separation, sintering, mineralogical analysis, low shaft furnace
Divisions:Information Management and Dissemination Centre
ID Code:9182
Deposited By:Dr Mita Tarafder
Deposited On:12 Sep 2022 16:05
Last Modified:12 Sep 2022 16:05
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