Extraction equilibrium of cobalt(II) from sulphate solutions by di(2-etrylhexyl)phosphoric acid dissolved in kerosene
作者： Ting-Chia Huang , Teh-Hua Tsai
DOI: 10.1016/S0277-5387(00)86889-8
关键词: Cobalt 、 Kerosene 、 Aqueous two-phase system 、 Phosphoric acid 、 Chemistry 、 Phase (matter) 、 Metal 、 Inorganic chemistry 、 Extraction (chemistry) 、 Aqueous solution
摘要: Abstract The distribution of cobalt(II) between 0.5 kmol m−3 aqueous sulphate medium and kerosene solutions di(2-ethylhexyl)phosphoric acid (HDEHP) has been studied at 25°C. extraction equilibrium is influenced by the total extractant concentration, pH value metal concentration in phase. data have analysed both graphically numerically. results show that species extracted into organic phase composition CoR 2 (HR) (Hk) 3 . stability constants HSO4−, NaSO4− CoSO4 also estimated from data.
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