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Kinetics of Sulfuric Acid Leaching of Low-Grade Zinc The results of a leaching kinetics study of low-grade zinc silicate ore with sulfuric acid are presented Effect of ore particle size, reaction temperature, and acid concentration on zinc dissolution rate were determined
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:vii" ELSEVIER Hydrometallurgy 46 (1997) 215-227 hydrometallurgy Removal of iron from silica sand by leaching with oxalic acid M Taxiarchou, D Panias, I Douni, I Paspaliaris, A Kontopoulos * Laboratory of Metallurgy, National Technical UniversiO' of Athens PO Box 64056, GR 157-10 Zogrqfos, Greece Received 6 December 1996; accepted 28 February 1997 Abstract The removal of iron from .
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Jun 26, 2008· In our organic lab, we have observed leaching of normal phase silica gel from colums during purifications run with high % methanol (eg 20% Methanol in dichoromethane) With reversed phase-C18 media we observe that it too will leach into the eluant in high methanol applications (methanol/water)
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