碱添加量对金属离子的分布和pH变化的影响  

Influence of alkali addition on distribution of metal ion and pH variation

作　　者：张廷安[1] 郑大录[1,2] 金创石[1,3] 郑英勋[1,2] 赵洪亮[1] 南相莉[1] 蒋孝丽[1] 

机构地区：[1]东北大学多金属共生矿生态化利用教育部重点实验室,沈阳110819 [2]清津矿山金属大学 [3]金策工业综合大学

出　　处：《材料与冶金学报》2012年第2期88-92,共5页Journal of Materials and Metallurgy

基　　金：国家"十一五"科技支撑计划项目(2008BAB34B01);国家自然科学基金资助项目(51004033;50974035;51074047)

摘　　要：提出了一种计算公式,定量地计算了既有氢氧化物沉淀又有氢氧配离子形成的化学反应体系中的金属离子的分布,考察了影响沉淀和配离子形成的各种因素.基于提出的公式,计算了锌、镉、铜、镍、铁(Ⅲ)、铁(Ⅱ)、铝、钙、镁的沉淀率,理论计算与实验结果一致.A formula was proposed to quantitatively calculate the distribution of metal ions in chemical reaction system where precipitation and complex ions were formed together. And some factors influencing formation of precipitation and complex ions were investigated. Based on this, a compared calculation was conducted with the experimental result of the reactions of solution containing alkali and nine kinds of metals such as zinc, cadmium, copper, nickel, iron （ Ⅲ ）, iron （ Ⅱ ）, aluminum, calcium and magnesium. The results show that the proposed formula is available.

关 键 词：沉淀率 配合物形成率 氢氧化物 金属离子的分布 

分 类 号：TF801.2[冶金工程—有色金属冶金] TF803.25