Enhancing Multipurpose Use of Cow-Parsnip in Processing of Gold-Bearing Sulfides
T. A. IVANOVA, I. G. ZIMBOVSKY, E. V. KOPORULINA
Institute of Integrated Mineral Development-IPKON, Russian Academy of Sciences, Kryukovskii tupik 4, Moscow, 111020 Russia
Keywords: ионы золота, тонкодисперсное золото, доизвлечение, флотация, флотореагент-модификатор, растительный экстракт, биосорбент, борщевик, фурокумарины, gold ions, finely dispersed gold, additional recovery, flotation, flotation agent-modifier, vegetable extract, biosorbent, cow-parsnip, furocoumarines
Abstract
The authors consider variants of multipurpose use of plant materials-ground green mass of Sosnovsky cow-parsnip. Simultaneous production of aqueous extract possessing depression properties and after-extraction solid residue being a sorbent for ions of gold and finely dispersed gold-bearing particles is one of the ways toward the reduction in cost and environmental impacts of flotation of gold-containing products. The SEM and UV spectrophotomery shows sorption activity of solid residue of cow-parsnip relative to Au3+ ions. It is demonstrated that the studied vegetable sorbent is applicable to additional recovery of finely dispersed gold from flotation pulp. The introduction of cow-parsnip instead of xanthogen in treatment of tailings has enhanced efficiency of fine gold recovery.
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