柠檬酸铅在柠檬酸钠溶液中溶解行为  

Dissolution behavior of lead citrate in sodium citrate solution

作　　者：何东升[1,2] 李巧双 杨典奇 杨聪[2] 王贤晨 杨家宽[1] 

机构地区：[1]华中科技大学环境科学与工程学院,武汉430074 [2]武汉工程大学资源与土木工程学院,武汉430073

出　　处：《北京科技大学学报》2014年第8期1020-1024,共5页Journal of University of Science and Technology Beijing

基　　金：教育部创新团队项目(IRT0974);国家自然科学基金资助项目(50804017);武汉工程大学科学研究基金资助项目(13105043);武汉工程大学第八届校长基金资助项目(2013061)

摘　　要：通过氧化铅与柠檬酸反应制备了柠檬酸铅,考察了溶解时间、溶解温度、柠檬酸钠浓度和柠檬酸加入量对柠檬酸铅在柠檬酸钠溶液中溶解率的影响.结果表明:温度、柠檬酸钠浓度及柠檬酸加入量是主要影响因素,升高温度和提高柠檬酸钠浓度可显著提高柠檬酸铅溶解率;温度和溶解率呈正线性关系,拟合的线性方程为Y=0.76+0.63T;加入柠檬酸则对柠檬酸铅溶解有抑制作用.Lead citrate was prepared by the reaction of lead oxide and citrate. The effects of dissolution time,dissolution temperature,sodium citrate concentration,and the addition amount of citric acid on the dissolution rate of lead citrate in sodium citrate solution were investigated. Experimental results show that,dissolution temperature,sodium citrate concentration,and the addition amount of citric acid are the main influencing factors. Increasing the dissolution temperature or the sodium citrate concentration can significantly improve the dissolution rate of lead citrate. The dissolution rate of lead citrate has a positive linear relation with the dissolution temperature,and the fitted linear equation is Y = 0. 76 ＋ 0. 63 T. Adding citric acid can inhibit the dissolution of lead citrate.

关 键 词：柠檬酸铅 柠檬酸钠 溶解 铅 回收 

分 类 号：TF812[冶金工程—有色金属冶金]