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Physicochemical Problems of Mineral Processing. ... Leaching of a low grade Egyptian chromite ore. Hydrometallurgy 43, 307-16. 3. EKMEKYAPAR, A. (1989).
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Leaching of a low grade Egyptian chromite ore. Chinese Pat. Geology of Egypt. Dissolution of magnesite in H2SO4 solutions. N. Hydrometallurgy 42.
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Manganese recoveries from low-grade ores using organic acids as reducing agents were investigated in the present work. The acid leaching potential of both oxalic acid ...
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