Dhar, S K and Banerjee, S K and Narayanan, P I A (1967) Beneficiation of low-grade Quartz Sillimanite Schist from Sonaphar, Assam. Other (TMP). CSIR- NML ,Jamshedpur, Jamshedpur,.
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Abstract
A Sample of low-grade quartz-sillimanite schist from Sonaphar, Assam, received from the Director of Geology and Mining, Shillong assayed 21.8% AlgO3, 69.2% SiO2, 2.4% Fe2O3, 0.8% TiO2 0,4% CaO, 0.14% MgO and 0.70%(Na2O K2O). Quartz followed by muscovite and rutile were the principal gangue minerals. Sillimanite grains were intimately associated as inclusions in quartz and were fairly 1iberated only at 8 to 25 microns size. Flotation using oleic acid emulsion as a collector for sillimanite and tannin extract as a depressant for quartz at pH 9.5 yielded a concentrate assaying 59.4% Al2O3 but with a low recovery of 23.0% Al2O3
| Item Type: | Project Reports (Other (TMP)) |
|---|---|
| Uncontrolled Keywords: | Sillimanite grains ,oleic acid ,low-grade quartz-sillimanite schist, flotation, calcination, quartz |
| Divisions: | Information Management and Dissemination Centre |
| ID Code: | 8945 |
| Deposited By: | Dr Mita Tarafder |
| Deposited On: | 09 Jun 2022 14:20 |
| Last Modified: | 13 Jul 2022 15:24 |
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