【作者】 温欣荣；

【Author】 WEN Xin-rong(Department of Chemistry .Jiaying College,Meizhou 514015,China)

【机构】 嘉应学院化学系；

【摘要】 研究了硝酸钠存在下碘化钾-氯化十六烷基毗啶-水体系浮选分离铅的行为及其与常见离子分离的条件,结果表明,控制pH5.0,在1.0gNaNO₃存在下,当碘化钾（0.1mol/L）和氯化十六烷基吡啶（0.01 mol/L）溶液的用量均为1.0mL时,Pb²⁺可被碘化钾-氯化十六烷基吡啶-水体系浮选,而Fe²⁺,Co²⁺,Ni²⁺,Zn²⁺,Mn²⁺,Al³⁺等离子在该体系中不被浮选,实现了Pb²⁺与这些离子的定量分离,对合成水样进行了定量浮选分离测定,结果满意。更多还原

【Abstract】 The floatation separation behaviour of lead by sodium nitrate-potassium iodide-cetylpyridine chloride-water system and the conditions for the separation of lead with other metal ions were studied. The results showed that in the presence of 1. 0 g NaNO3,with the amount of 1. 0 mL of KI (0. 1 mol/ L) and CPC (0. 01 mol/L) ,Pb2+ can be separated completely from Fe2+ ,Co2+ ,Ni2+ ,Zn2+ ,Mn2+, A13+ by floatation at pH5. 0. This method has been used for the floatation separation of Pb2+ in the sample of synthetic water and the result was satisfactory.更多还原