首页>
外国专利>
Process for the extraction and concentration of cadmium contained in low and medium concentrations in concentrated sulfuric effluents.
Process for the extraction and concentration of cadmium contained in low and medium concentrations in concentrated sulfuric effluents.
展开▼
机译:浓硫酸废水中低浓度和中浓度镉的提取和浓缩方法。
展开▼
页面导航
摘要
著录项
相似文献
摘要
Process for the extraction and concentration of cadmium contained in low and intermediate concentrations in concentrated sulphuric effluents. The objective of the invention is to concentrate the cadmium in order to enable it to be subsequently reclaimed or stored in the form of waste. This objective is met with the aid of a process including four successive extraction steps carried out with the aid of monothiophosphinic acid, hydrochloric acid, trialkyl phosphate and water, respectively. This process applies especially to the treatment of the raffinates originating from the purification of phosphoric acid. IMAGE
展开▼