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2012•Uranium Mining and MetallurgyRequires access

Leaching characteristics of a low grade uranium ore

Tan Yan-peng

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Abstract

Leaching characteristics of a low grade uranium ore in Jiangxi province are studied using agitating leaching and column leaching methods.The results of agitating leaching test show that leaching rate of uranium is above 85% under the conditions of sulphuric acid concentration of 10 g/L and stirring 12 h,and the ore is leachable.The results of column leaching test show that leaching rate of uranium is above 85.7% under the conditions of particle size of-5 mm,sulphuric acid dosage of 4.6%(w/w),and leaching time 40 d,and the permeability of ore heap is good(33 L/m2 h).The obtained leaching parameters can be used as the basis of industrial experiment design and adjusting the leaching parameters in production.

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Leaching characteristics of a low grade uranium ore in Jiangxi province are studied using agitating leaching and column leaching methods.The results of agitating leaching test show that leaching rate of uranium is above 85% under the conditions of sulphuric acid concentration of 10 g/L and stirring 12 h,and the ore is leachable.The results of column leaching test show that leaching rate of uranium is above 85.7% under the conditions of particle size of-5 mm,sulphuric acid dosage of 4.6%(w/w),and leaching time 40 d,and the permeability of ore heap is good(33 L/m2 h).The obtained leaching parameters can be used as the basis of industrial experiment design and adjusting the leaching parameters in production.

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Available abstract

Leaching characteristics of a low grade uranium ore in Jiangxi province are studied using agitating leaching and column leaching methods.The results of agitating leaching test show that leaching rate of uranium is above 85% under the conditions of sulphuric acid concentration of 10 g/L and stirring 12 h,and the ore is leachable.The results of column leaching test show that leaching rate of uranium is above 85.7% under the conditions of particle size of-5 mm,sulphuric acid dosage of 4.6%(w/w),and leaching time 40 d,and the permeability of ore heap is good(33 L/m2 h).The obtained leaching parameters can be used as the basis of industrial experiment design and adjusting the leaching parameters in production.

Key concepts: Heap leaching, Leaching (pedology), Uranium, Lixiviant, Metallurgy, Uranium ore, Chemistry, Environmental science

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