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

CIM Bulletin, 1963

W. R. HONEYWELL; V. F. HARRISON

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