Aruna, V A J and Goswami, S N and Bawane, P R and Ram, Mohan and Gundewar, C S (2010) Enhancing chalcopyrite flotation by tackling hydrophobic silicate gangue. In: Proceedings of the XI International Seminar on Mineral Processing Technology (MPT-2010), Dec 2010, NML Jamshedpur, India.
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The Khetri Copper concentrator of M/s Hindustan Copper Limited, encountered with the problem of voluminous black froth, while treating copper ore from Banwas mine. The copper concentrate of the plant assayed 16.19% Cu, and 19.57% Acid insoluble with ~89% Cu recovery. Mineralogical studies revealed that the plant concentrate consists of ~45% chalcopyrite, 10–15% quartz, ~5% mica, 15–20% amphibole, 10–15% pyrite and pyrrhotite, 2–3% magnetite and ~5% other minerals. In order to find a solution to the black froth problem, and to improve the Cu grade and recovery, ROM copper ore sample from Banwas mine was sent to RODL, IBM, Ajmer by M/s HCL, Khetri. Bench scale flotation studies carried out at plant grind of 65.9% < 75 μm, under optimized reagent dosage, at dilute pulp density yielded a II cleaner concentrate assaying 28.81% Cu, 7% acid insoluble with 92.4% Cu recovery. The wt% yield was 6.0. The grade and recovery achieved is much better than that was stipulated by M/s. HCL, Khetri. The study revealed that it is possible to control silicate gangue minerals by slight modifications of the flotation parameters under the existing plant practice conditions.
|Item Type:||Conference or Workshop Item (Paper)|
|Uncontrolled Keywords:||Sulphide copper ore, Hydrophobic silicate gangue minerals, Froth flotation|
|Deposited By:||Dr. A K Sahu|
|Deposited On:||13 Jan 2011 11:06|
|Last Modified:||19 Aug 2015 11:04|
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