Journal of Environment Protection and Sustainable Development
Articles Information
Journal of Environment Protection and Sustainable Development, Vol.1, No.2, May 2015, Pub. Date: May 18, 2015
Effect of Temperatures on Dissolution Performance of Scrap Lead Paste in Sodium Citrate Solution
Pages: 91-94 Views: 4099 Downloads: 1268
Authors
[01] Chunxia Gong, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China; School of Chemistry and Chemical Engineering, Southeast University, Nanjing, China.
[02] Yanjuan Chen, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China.
[03] Lifang Zhang, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China.
[04] Bo Wang, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China.
[05] Mingxue Fang, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China.
[06] Qun Chen, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China.
[07] Duyou Wang, Zhejiang Tianneng Battery (Jiangsu) Co., Ltd., Shuyang, Jiangsu, China.
Abstract
People should appear arrhythmia, renal failure, convulsions, coma and even death if blood lead levels were more than 1000 g/L. Lead impacts the body's nervous system and blood system significant. And in recent years, lead poisoning events occurred frequently. Therefore, it is very important for survival of human to research the properties of heavy metal lead. In this paper dissolution performance of scrap lead paste has been researched in sodium citrate solution at different temperature (20~80 ºC). The pH values of filtrate were all higher than 7 but lower than 7.51. 0.057~0.168 g sodium citrate was consumed by scrap lead paste per gram at 20~80 ºC. 0.575~1.815 g solid materials were residue, lowest at 80 ºC. 10.677~24.404g•L-1 lead in filtered liquor was tested, lowest at 50 ºC. Dissolution rates of scrap lead paste were 9.544~17.883 %, also lowest at 50 ºC.
Keywords
Dissolution Performance, Scrap Lead Paste, The pH, Temperature
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