摘要
在MgO稳定的氧化锆管内装金属银与金川炼镍弃渣,于1 873 K温度下置于碳饱和铁液中,组成如下原电池:石墨|[O]Fe+C饱和|ZrO2(MgO)|(FeO)(slag)+Ag(l)|Mo.其中碳饱和铁液作阳极,渣中的银液作阴极.将原电池短路,电子通过外电路在两极间传递.通过电化学分析仪测定外电路的短路电流,监测金川渣电化学还原变化.该方法利用还原剂碳非接触式电化学还原金川渣,提取金川渣中的有价金属铁、镍、铜等,获得无碳铁合金,提供了一个从冶金弃渣中回收有价金属的新途径.
A one-end-closed magnesia-stabilized zirconia tube was charged into an amount of Jinchuan slag and electrolytic silver. The zirconia tube was immersed in carbon saturated iron melt at 1873K. The following galvanic cell was assembled： graphite rod｜[ O] Fe-C saturated｜ ZrO2 （MgO） ｜ Ag（1） ＋ （FeO）（slag）｜ Mo wire. Thereinto, the carbon saturated iron melt was used as anode and liquid silver as cathode. The galvanic cell was shorted circuit and the electrons were transferred between the electrodes through the external circuit. The external circuit current was measured by a muti-function electrochemical instrument to observe electrochemical reduction of Jinchuan slag. This method extracts valuable metals such as iron, nickel, copper and obtained carbon-free ferroalloy through contactless electrochemical reduction of Jinchuan slag by carbon saturated iron melt. It provides a new approach to reclaiming valuable metals from metallurgical waste slag.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2006年第8期123-126,共4页
Journal of Chongqing University
基金
国家自然科学基金资助项目(50274008
50574011)
湖北省自然科学基金资助项目(2005ABA019)
关键词
冶金渣
电化学还原
氧化锆
电池
metallurgical slag
electrochemical reduction
zirconia
galvanic cell
