Leaching of Mt Weld Phosphate Ores with Acetone-water-SO2 Mixtures

Lee Y K, ; Bronswijk V W, ; Walker G S,
Organization: The Australasian Institute of Mining and Metallurgy
Pages: 4
Publication Date: Jan 1, 1991
The effect of leaching three samples of Mt Weld ore with a-hydroxysulphonic acid [(CH3)2(COH)SO3H] was assessed. Apatite present in the samples was found to be readily soluble but calcination up to 600¦C was required to increase the solubility of crandallite. Increasing the calcination temperature increased dissolution of both phosphate and alumuuum. The optimum SO2 content in solution for the dissolution of crandallite ores was found to be lower than for apatite.
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