低浓度含铑有机废液中硫化沉铑工艺优化研究  

Optimization of Sulfide Precipitation Rhodium on Low Concentration Organic Waste Liquid Containing Rhodium

作　　者：赵家春[1] 李强[1] 周伟[1] 吴跃东[1] 童伟锋[1] 杨海琼[1] 保思敏[1] 董海刚[1] ZHAO Jiachun;LI Qiang;ZHOU Wei;WU Yuedong;TONG Weifeng;YANG Haiqiong;BAO Simin;DONG Haigang(Kunming Institute of Precious Metals,State key Laboratory of Advanced Technology of Comprehensive Utilization of Platinum Metals,Sino-platinum Metals Co.Ltd.,Kunming 650106,China)

机构地区：[1]昆明贵金属研究所,贵研铂业股份有限公司稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《贵金属》2018年第A01期145-149,共5页Precious Metals

基　　金：国家重点研发计划(2017YFB0305401、2017YFB0305402);国家自然科学基金项目(51504106);云南省科技计划项目(2015FB204、2017FA030、2016BA006、2016FB096)。

摘　　要：应用硫化沉淀法处理乙酰丙酮铑废液,以沉淀形式回收铑。研究了反应温度、时间和体系pH值对铑沉淀率的影响,优化了硫化沉淀铑的工艺技术参数。结果表明,当反应温度控制在80℃,反应时间为6 h,初始pH值为6～7.5,终点pH值小于9.5,饱和硫化钠溶液用量为理论量的20倍,搅拌转速为300 r/min时,铑沉淀率最高为80%以上。The rhodium recovery process based on sulfide precipitation method was proposed for the waste rhodium-containing organic solution.The influence of reaction temperature,time,and pH of the solution on the rhodium precipitation rate was studied.The optimum reaction parameters were obtained.The test results show that under the condition of reaction temperature 80℃,reaction time 6 h,reaction initial pH value 6~7,end point pH value less than 9.5,saturated sodium sulfide solution dosage 20 times the theoretical amount and stirring speed 300 r/min,the yield of rhodium is more than 80%.

关 键 词：硫化沉淀法 含铑废液 工艺优化 

分 类 号：TF837[冶金工程—有色金属冶金]