韩召,李领,魏晓磊,李杰,王海川

• 1:安徽工业大学冶金与资源学院

摘要(Abstract)：

利用TG-DSC技术分析了PbSO4在Na2CO3-NaNO3熔盐体系中的脱硫转化过程的行为特征,通过XRD、SEM、EDS等手段研究了焙烧温度、原料配比、助剂加入量等因素对PbSO4脱硫转化过程及其产物形态的影响。结果表明:NaNO3能够对PbSO4脱硫转化过程起到显著的强化作用;提高焙烧温度、增加Na2CO3和NaNO3的用量均能促进PbSO4脱硫转化反应的进行。在物料摩尔比为PbSO4∶Na2CO3∶NaNO3=1∶1.1∶0.2,焙烧温度为600℃,保温时间为1 h的条件下,PbSO4可完全脱硫,转变为粒径约为1～3μm的β-PbO粉体,产物中未观察到其它杂相。

关键词(KeyWords)： 熔盐材料;相转变;脱硫;铅回收;铅酸电池

Abstract:

Keywords:

基金项目(Foundation): 安徽高校省级自然科学研究重点项目(KJ2012A046);; 安徽工业大学青年教师科研基金项目(QZ201002),安徽工业大学SRTP项目(2010003)

作者(Author): 韩召,李领,魏晓磊,李杰,王海川

DOI: 10.13289/j.issn.1009-6264.2012.06.002

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