废三元催化器中钯的提取工艺研究  

Extraction of Palladium from Waste Catalytic Converters

作　　者：贡洁 王钰杰 孔雯 吴彤 朱炳龙 岳喜龙 周全法 童霏[1,2] GONG Jie;WANG Yujie;KONG Wen;WU Tong;ZHU Binglong;YUE Xilong;ZHOU Quanfa;TONG Fei(Jiangsu University of Technology,College of Chemical and Environmental Engineering,Changzhou 213001,Jiangsu,China;The Laboratory of Precious Metals Processing Technology and Application,Changzhou 213001,Jiangsu,China;Yangzhou Ningda Precious Metlas Co.Ltd.,Yangzhou 225231,Jiangsu,China)

机构地区：[1]江苏理工学院化学与环境工程学院,江苏常州213001 [2]江苏省贵金属深加工技术及其应用重点建设实验室,江苏常州213001 [3]扬州宁达贵金属有限公司,江苏扬州225231

出　　处：《贵金属》2018年第A01期155-160,共6页Precious Metals

基　　金：江苏省高校自然科学研究重大项目(16KJA43007);江苏省大学生创新创业训练计划项目(201811463028Y);江苏理工学院品牌专业

摘　　要：废旧车用三元催化器富含贵金属铂、钯及铑。研究了湿法技术从废三元催化器中提取钯,采取的工艺流程为,预处理-初浸-王水浸出-赶硝赶酸-丁二酮肟-氯仿萃取钯-NaOH反萃取钯-氨水络合钯。考察了液固比、温度和时间对王水浸出钯的影响;萃取时间、温度、丁二酮肟用量和氯仿用量对钯萃取率的影响;NaOH溶液浓度对钯反萃取率的影响。Waste car catalytic converters have high content of platinum group of platinum,palladium,and rhodium.Extraction procedure of palladium from waste ternary catalysts were investigated.The main process were performed as follows,pretreatment,first immersion,aqua regia leaching,nitrate drive acid,succinct ketone oxime-chloroform extraction of palladium-NaOH reverse extraction-ammonia complexion palladium.The influence of liquid/solid ratio,temperature and time on the aqua regia leaching,extraction time,temperature,dosage of butyl ketone oxime dosage,chloroform for palladium extraction rate and reduction steps for the purification of the consumption of reagent were investigated.

关 键 词：有色金属冶金 废三元催化器 钯 萃取法 

分 类 号：TF836[冶金工程—有色金属冶金]