摘要
用HDEHP[=( 2 -乙基己基 )磷酸 ]液膜体系对钴进行提取。该体系包括流动载体(HDEHP)、表面活性剂 (L113B)、膜增加剂 (液体石蜡 )、溶剂 (磺化煤油 )和内相 ( 2 .5mol/LHCl)。研究了液膜的稳定性、温度、Co2 +浓度、HCl浓度、外相pH值、乳水比和油内比等因素对提取钴的影响。实验结果表明 ,在适当条件下 ,CoCl2 的提取率可达 91%以上。在此情况下 ,许多共存离子都不迁移、透过此液膜。只有Co2 +可以从这些离子中得到满意的分离。此法已用于提取黄铁矿、烟灰、炉渣和含有钴废催化剂中的钴 ,CoCl2 的纯度大于 99.5 %。
An liquid membrane system has been used for extraction of cobalt.The system includes a mobile Carrier(HDEHP),a surfactant(L113B),a film-strengthening agent(liquid paraffin),a solvent (Sulphonated kerosene)and the internal phase(2.5 mol/L HCl water solution).The stability of the liquid membrane and the factors affecting the extraction efficiency of cobalt such as temperature,cobalt concentration,HCl concentration,pH value of outer phase,and the ratios of emuision to water have been studied.Experimental results show that the efficiency of cobalt extraction is above 91% under an appropriate experimental conditions In this case many co-existed ions.can not transport through this liquid membrane.So Co 2+ can be separated from these ions satisfactorily.The method has been for the extraction of cobalt in ores,slag,dust fume and waste catalyst containing cobalt.
出处
《中国钼业》
2002年第2期28-30,共3页
China Molybdenum Industry
关键词
提取
液膜法
废催化剂
氯化钴
Cobalt,Extraction,Liquid membranes method,Cobalt containing waste catalyst
