Inorganic Chemicals Industry >
Study on desulfurization process of waste lead paste by triethylamine process
Received date: 2019-10-14
Online published: 2020-04-22
In order to recover lead,triethylamine is reacted with lead sulfate in waste lead paste to obtain more easily decom-posed lead hydroxide.The effects of the amount-of-substance ratio of triethylamine to lead sulfate in waste lead paste,liquid-solid mass ratio,reaction temperature and reaction time on the desulfurization rate were investigated.Results showed that when the amount-of-substance ratio of triethylamine to lead sulfate in waste lead paste was 10,the liquid-solid mass ratio was 10,the reaction temperature was 60 ℃ and the reaction time was 6 h,the desulfurization rate can reach 86.77%.XRD and SEM analysis were carried out on the original lead paste and the desulfurized lead paste under the optimum conditions.There were many characteristic peaks of lead hydroxide in desulfurized lead paste,and the characteristic peaks of lead sulfate de-creased greatly.The shape of lead hydroxide was a smooth rod.
Key words： triethylamine; waste lead paste; desulfurization; lead sulfate
Haibo Ke , Changmei Ke , Jinzhao Yu , Jintang Yang . Study on desulfurization process of waste lead paste by triethylamine process[J]. Inorganic Chemicals Industry, 2020 , 52(4) : 75 -78 . DOI: 10.11962/1006-4990.2019-0309
| [1] | 和晓才 . 废铅蓄电池的处理[J]. 云南冶金, 2002,31(2):38-40. |
| [2] | 宋剑飞, 李丹, 陈昭宜 . 废铅蓄电池的处理及资源化——黄丹红丹生产新工艺[J]. 环境工程, 2003,21(5):48-50. |
| [3] | 邱德芬, 柯昌美, 王茜 , 等. 从废铅膏中回收铅及铅的化合物的方法[J]. 无机盐工业, 2014,46(7):16-19. |
| [4] | 杨家宽, 朱新锋, 刘万超 , 等. 废铅酸电池铅膏回收技术的研究进展[J]. 现代化工, 2009,29(3):32-37. |
| [5] | 颜游子 . NaOH浸出-电解体系从废铅膏中回收铅的研究[D]. 南宁:广西大学, 2018. |
| [6] | 马旭, 王顺兴, 李晓燕 . 固相电解法从废铅酸蓄电池中回收铅[J]. 材料研究与应用, 2008,2(2):141-144. |
| [7] | Pan J Q, Zhang C, Sun Y Z , et al. A new process of lead recovery from waste lead-acid batteries by electrolysis of alkaline lead oxide solu-tion[J]. Electrochemistry Communications, 2012,19:70-72. |
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