Beneficiation of low grade Garnet sample from Nellore, Andhra

Mathur, G P and Sengupta, B L and Narayanan, P I A (1958) Beneficiation of low grade Garnet sample from Nellore, Andhra. Other (TMP). CSIR-NML, Jamshedpur, Jamshedpur.

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A low grade garnet sample from Nellore, Andhra, was received from M/S. Inden Biselers, Madras, with a view to upgrading it for abrasive purposes. As received, the sample contained 75% garnet. Almandite was the principal garnet mineral. Quartz and muscovite were the predominant gangue minerals. Tabling of -20 mesh sample after hydraulic classification followed by magnetic separation of table middling products, yielded a combined concentrate containing 92.5% garnet and 0.68% free gangue with an overall garnet recovery of 89%. Heating the concentrate to 700°C and 800°C for varying lengths of time improved the capillarity of the product considerably. The heat treated as well as unheated concentrates after sizing, have been sent to M/s. Inden Biselers, for finding out their suitability for abrasive manufacture, by service trials with the paper and cloth abrasives made with these concentrates.

Item Type:Project Reports (Other (TMP))
Uncontrolled Keywords:low grade garnet sample, almandite, hydraulic classification , magnetic separation, quartz and muscovite, abrasive purposes
Divisions:Information Management and Dissemination Centre
ID Code:9192
Deposited By:Dr Mita Tarafder
Deposited On:12 Sep 2022 15:50
Last Modified:12 Sep 2022 15:50
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