废铅酸电池铅膏脱硫的研究  

Research on desulfurization of lead paste in spent lead-acid battery

作　　者：张松山[1] 柯昌美[1] 杨柯[1] 陈梅[1] 

机构地区：[1]武汉科技大学化学工程与技术学院,湖北武汉430081

出　　处：《电池》2016年第1期56-58,共3页Battery Bimonthly

摘　　要：以尿素溶液浸出废铅膏中硫酸铅(PbSO_4),经化学转化生成易于分解的碳酸铅(PbCO_3),实现废铅酸电池的回收利用。分析反应温度、反应时间和尿素的实际用量/理论用量对尿素体系脱硫率的影响,对产品进行XRD和SEM分析。当反应温度为105℃、反应时间为6h及尿素用量A/T为5时,脱硫率可达到60%以上;尿素脱硫反应的进行由铅膏表面缓慢展开,可实现PbSO_4向PbCO_3的转化。Urea solution leaching lead（ Ⅱ） sulfate（ PbSO_4） was experimented in waste lead paste,which had converted into easily decomposed lead（ Ⅱ） carbonate basic（ PbCO_3） and achieved the spent lead-acid batteries recovery. The effects to the desulphurization rate of urea system with different reaction temperature,time and amount of urea by actual / theory were analyzed.The product was detected by XRD and SEM. The desulfurization rate could reach more than 60% with the urea amount A / T of 5,the temperature of 105 ℃,the reaction time of 6 h; The urea system desulfurization reaction was conversed lead sulfate into lead carbonate with slowly development from the surface of the paste.

关 键 词：铅回收 脱硫工艺 尿素水解 铅酸电池 

分 类 号：X705[环境科学与工程—环境工程] TM912.1[电气工程—电力电子与电力传动]