Beneficiation of Low Grade Ores by Electro-Column Flotation Technique.

Bhaskar Raju, G and Prabhakar, S and Khangaonkar, P R (1988) Beneficiation of Low Grade Ores by Electro-Column Flotation Technique. In: Column Floation "88", January 25-28, Phoenix, Arizona, USA.



Three types of flotation columns were developed with a column dia of 8.0 cm and a length of 160 cm. The first type consists of an ordinary column fitted with a porous plate at the bottom. The second type consists of two electrodes at the bottom to obtain very fine and uniform bubbles generated electrolytically and the third is a combination of first and second types, i.e. to get both electrolytic bubbles and air from the compressor through porous plate. Three different ores were tested-gold tailings for recovery of scheelite, copper tailings (chalcopyrite) and oxide copper ore. In the case of scheelite and copper oxides, good results were obtained with the first type of column itself, whereas the third type column was found fairly effective in the recovery of chalcopyrite. The variables like the effect of reagent concentration, column height above the feed point, feed flow ra te, current density, air flow rate, particle size were examined.

Item Type:Conference or Workshop Item (Paper)
Official URL/DOI:
Uncontrolled Keywords:copper oxide ore, schelite, copper tailings, electroflotation, column flotation
Divisions:NML Chennai > Mineral Processing
ID Code:4055
Deposited By:Dr. G Bhaskar Raju
Deposited On:28 Sep 2011 10:23
Last Modified:01 Dec 2011 14:54
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