Two-Stage Flotation Treatment of Uranium Ore From Faraday Uranium Mines Limited

CIM Bulletin, 1963


Two series of laboratory flotation tests were carried out to study the treatment of Faraday ore by two-stage flotation. First the acid-consumers and then the uranium minerals were floated. On ore ground in the Faraday mill grinding circuit, and using Faraday mill water in the flotation step, a recovery in the flotation concentrate of from 91 to 93 per cent of the uranium was obtained in 45 to 50 per cent of the weight at a grade of 0.24 per cent U3O8. The saving of acid in leaching the uranium-bearing flotation concentrate, as compared to leaching the whole ore, ranged from 30 to 46 per cent. The average over-all extraction resulting from flotation and leaching of the flotation concentrate was 88.1 per cent.
Keywords: Acid, Concentrate, flotation, Flotation Test No, sodium silicate, sulphuric acid, The pH, Uranium Ores, Ore, Ores, test, Tests, uranium