<報文>液体カラムクロマトグラフによる閃亜鉛鉱浮選の基礎的研究(第1報) : 銅その他金属イオンとエチルキサントゲン酸イオンの反応について

概要

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In order to investigate the activations of sphalerite with cupric or other metallic ions and the adsorption of ethyl-xanthate ions, this experiment was mainly performed by using a liquid column chromatograph as a continuous flow calorimeter. It was found by an analysis of heat production Cdθ/dt, that the rate of exchange of Ag^+ ions for Zn^<++> ions in the sphalerite lattice proceeded more quickly than that of Cu^<++> and Hg^<++> ions for Zn^<++> ions. A heat production of the adsorption for copper-activated sphalerite with ethyl-xanthate ions occurred considerably in comparison with unactivated sphalerite, and in the former an endothermic reaction did not occur by washing, but it occurred in the latter. The maximum values of heat production of the adsorption of sphalerite with Cu^<++> and ethyl-xanthate ions were a logarithmic function of its concentrations at ranges from 2×10^<-4> to 10^<-2> mole per liter. When the maximum values of heat production of adsorption with some metallic ions were plotted against its enthalpy-ΔH, a nearly straight line was obtained.
東北大学の論文
1972-03-25