摘要
用双氧水作为氧化剂,将难溶性亚硒酸盐转化为易溶性的硒酸盐,实现锑硒分离。结果表明,锑硒分离的动力学遵从不生成固体产物层的未反应核缩芯模型,动力学方程为1-(1-x)1/3=Mkc/br0ρt,反应活化能为-15.490 6kJ/mol,属于化学反应控制。
Separation of antimony and selenium from arsenic alkali residue was investigated.Insoluble selenite was changed into soluble selenate with hydrogen peroxide as oxidant.The results show that its kinetics is unreacted-core shrinking model which has no solid products generated.Its kinetics equation is 1-（1-x）1/3=Mkc/br0ρt.The reaction activation energy is-15.490 6 kJ/mol,and it is a chemical reaction-controlled process.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2012年第2期5-8,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国家高技术研究发展计划项目(2010AA065204)
江西省自然科学基金资助项目(2010GZH0111)
关键词
砷碱渣
锑硒分离
浸出动力学
活化能
arsenic alkali residue
separation of antimony and selenium
leaching kinetics
activation energy
