[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.

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.

Dissolution Performance, Scrap Lead Paste, The pH, Temperature

[01] S.M. Tabaatabaai, M.S. Rahmanifar and S.A. Mousavi, “Lead-acid batteries with foam grids,.”[J]. Journal of Power Sources, vol.158, pp.879-884, 2006. [02] Y. Chen, B.Z. Chen and X.C. Shi, “Preparation and electrochemical properties of pitch-based carbon foam as current collectors for lead acid batteries.”[J]. Electrochimica Acta,.vol.53,.pp. 2245-2249, 2008. [03] M.L. Soria, J. Valenciano and A. Ojeda, “Development of ultra high power, valve-regulated lead-acid batteries for industrial applications,.”[J]. Journal of Power Sources,.vol.136, pp.376-382, 2004. [04] D. Pavlov, G. Petkova, M. Dimitrov, “Influence of fast charge on the life cycle of positive lead-acid battery plates,.”[J].Journal of Power Sources, vol.87, pp.39-56, 2000. [05] C.H. Yeh, C.C. Wan and J.S. Chen, “Physical and electrochemical characterization of PbO2 electrode prepared at different H2SO4/H2O/PbO ratios.”[J]. Journal of Power Sources, vol.101, pp.219-225, 2001. [06] J. M. Jiang, “Situation and development trend of lead smelting technology at home and abroad.”[J］.Energy Saving of Non-Ferrous Metallurgy, vol.3, pp.4-8,2013.(in Chinese). [07] S. K. Guo, A. P. He, A. Q. Liu, et al. “New pyrometallurgi-cal processes and equipment for smelting lead,” [J]. Shanghai Nonferrous Metals,.vol.23, pp.20-23, 2002.(in Chinese). [08] X.J. Sun, J.K. Yang, W. Zhang, et al. “Lead acetate trihydrate precursor route to synthesize novel ultrafine lead oxide from spent lead acid battery pastes,” [J]. Journal of Power Sources, vol.269, pp. 565-576, 2014. [09] X. Zhu, J. Yang, L. Gao, et al. “Preparation of lead carbonate from spent lead paste via chemical conversion,”[J]. Hydrometallurgy, vol.134-135, pp.47-53, 2013. [10] X. Zhu, L. Li, X. Sun, et al. “Preparation of basic lead oxide from spent lead acid battery paste via chemical conversion,”[J]. Hydrometallurgy, vol.117-118, pp. 24-31, 2012. [11] H.D. McDonald, “Method of recovering lead values from battery sludge,” [P]. United States Patent, 4229271. 1980-10-21. [12] R.D. Prengaman. “Recovering lead from batteries,”[J]. Jom-Journal of the Minerals Metals& Materials Society, vol.47, pp.31-33, 1995. [13] E.R. Cole, A.Y. Lee and D.L. Paulson, “Update on recovering lead from scrap batteries,” [J]. Journal of Metals, vol.37, pp. 79-83, 1985. [14] M. Olper, P. Fracchia, “Hydrometallurgica1 process for an overall recovery of the components of exhausted lead-acid batteries,”[P].United States Patent, 4769116. 1988-9-6. [15] W.P. Chen, J.S. Gong and Q.Z. Li, “Researeh on Proeess for Redueing PbO:Contained in Lead Baffery Serapwith Fe2+,”[J]. Journal of Hunan University, vol.22, pp.53-58, 1995. (in Chinese). [16] W.P. Chen, “New Technology of Hydrometallurgical Recovering Lead from Waste Battery Slurry, ”[J]. Journal of Hunan University, vol.23, pp.111-115, 1996 (in Chinese). [17] D. Andrews, A. Raychaudhuri, “Frias C. Environmentally sound technologies for recycling secondary lead, ”[J]. Journal of Power Sources, vol.88, pp.124-129, 2000. [18] M. S. Sonmez, R. V. Kumar, “Leaching of waste battery paste components: Part 1. Lead citrate synthesis from PbO and PbO2,” [J]. Hydrometallurgy, vol.95, pp.53-60, 2009. [19] J. K. Yang, X. F. Zhu, W. C. Liu, et al. “Review of recovery technology for lead paste from spent lead acid battery,” [J]. Mod Chem Ind, vol.29, pp.32-36, 2009. [20] M.S. Sonmez and R.V. Kumar, “Leaching of waste battery paste components. Part 2: Leaching and desulphurisation of PbSO4 by citric acid and sodium citrate solution,”[J]. Hydrometallurgy, vol.95, pp.82-86, 2009. [21] X. Zhu, X. He, J. Yang, et al. “Leaching of spent lead acid battery paste components by sodium citrate and acetic acid,”[J]. Journal of Hazardous Materials, vol.250-251, pp.387-396, 2013. [22] D.N. Yang, J.W. Liu, Q. Wang, et al. “A novel ultrafine leady oxide prepared from spent lead pastes for application as cathode of lead acid battery,”[J]. Journal of Power Sources, vol.257, pp.27-36, 2014. [23] M. Olper, M. Maccagni and C.J.N. Buisman, “Electrowinning of lead battery paste with the production of lead and elemental sulphur using bioprocess technologies,”[C]. proceedings of the LEAD~ZINC 2000 symposium, Pittsburgh Pennsylvania USA, Minerals Met＆Mat Soc, pp.209-210, 2000.