Srivastava, J P and Pathak, P N (2000) Pre-concentration: a necessary step for upgrading tungsten ore. International Journal of Mineral Processing, 60 (1). pp. 1-8.
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Abstract
In upgrading lean tungsten ore, gravity concentration by jigging of vein quartz produced a pre-concentrate containing 4.5% WO3. For further upgrading the pre-concentrate, beneficiation studies were conducted with an objective of obtaining a product analysing >65% WO3 with less than 1% impurities of SiO2 and S each. The sample contained quartz, topaz and iron sulphides as gangue. The study presented in this paper has shown that a further pre-concentration to remove topaz is necessary for improving efficiency of downstream separation process and to achieve desired product. Results of enrichment studies using −200# ground sample have also been discussed. Desired product could be obtained by pre-concentration of the jig pre-concentrate by tabling followed by flotation at −200# and vanning of flotation tailing.
Item Type: | Article |
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Official URL/DOI: | http://dx.doi.org/10.1016/S0301-7516(99)00062-9 |
Uncontrolled Keywords: | lean tungsten ores; pre-concentration; flotation |
Divisions: | Mineral Processing |
ID Code: | 363 |
Deposited By: | INVALID USER |
Deposited On: | 07 Dec 2009 21:41 |
Last Modified: | 17 Feb 2012 16:05 |
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