Beşe Ayşe Vildan
Department of Chemical Engineering, University of Atatürk, 25240 Erzurum, Turkey.
Ultrason Sonochem. 2007 Sep;14(6):790-6. doi: 10.1016/j.ultsonch.2007.01.007. Epub 2007 Feb 15.
This work presents the optimum conditions of dissolution of copper in copper converter slag in sulphuric acid ferric sulphate mixtures in the presence and absence of ultrasound. The Taguchi method was used to determine the optimum conditions. The parameters investigated were the reaction temperature, acid concentration, ferric sulphate concentration and reaction time. The optimum conditions for the maximum dissolution of copper were determined as follows: reaction temperature, 65 degrees C; acid concentration, 0.2M; ferric sulphate concentration, 0.15M; reaction time 180 min. Under these conditions, extraction efficiency of copper, zinc, cobalt, and iron from slag were 89.28%, 51.32%, 69.87%, and 13.73%, respectively, in the presence of ultrasound, while they are 80.41%, 48.28%, 64.52%, and 12.16%, respectively, in the absence of ultrasound. As seen from the above results, it is clear that ultrasound enhances on the dissolution of Cu, Zn, Co and Fe in the slag.
本研究介绍了在有超声和无超声条件下，铜在硫酸铁硫酸混合液中溶解于铜转炉渣的最佳条件。采用田口方法确定最佳条件。所研究的参数有反应温度、酸浓度、硫酸铁浓度和反应时间。确定铜最大溶解量的最佳条件如下：反应温度65℃；酸浓度0.2M；硫酸铁浓度0.15M；反应时间180分钟。在这些条件下，有超声时，渣中铜、锌、钴和铁的萃取效率分别为89.28%、51.32%、69.87%和13.73%，而无超声时，它们分别为80.41%、48.28%、64.52%和12.16%。从上述结果可以看出，显然超声增强了渣中铜、锌、钴和铁的溶解。
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