Studies on beneficiation of BHQ samples by different methods

TL;DRAbstract

Experiments have been carried out to beneficiate BHQ samples collected from two different states of the country viz. Karnataka and Orissa by different techniques such as jigging, magnetic separation and using hydrocyclones after their characterisation studies. Results of these tests have clearly indicated that it is possible to beneficiate the BHQ’s of both the states to a certain extent and can only be used to mix with high-grade haematitic iron ores. This would be helpful in conservation and utilisation of rich grade ores. Characterisation studies performed indicated that both the ores require fine grinding to a size of 200mesh to achieve effective liberation. The tests conducted on Barbil area BHQ sample resulted in an upgradation of iron content from a feed value of 42.8% Fe to a maximum of 56.8% Fe by magnetic separation with a yield of around 41%. Similarly, Bellary-Hospet sector ore has indicated that it is possible to increase the iron content from a feed assay value of 35% iro

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