ICP-AES法测定废催化剂不溶渣中的铂、钯和铑  

Determination of Platinum, Palladium and Rhodium Contents in Insoluble Slag of Spent Catalysts by ICP-AES

作　　者：谭文进 贺小塘 肖雄 张选冬 刘伟 刘文 鲁俊余 林波 马王蕊 金云杰 朱利亚 

机构地区：[1]贵研资源(易门)有限公司,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》2015年第3期72-77,共6页Precious Metals

基　　金：国家高技术研究发展计划基金(863计划)(2012AA063203,2012AA063207);云南省科技创新强省计划基金(2011AA004);云南省地方标准制(修)订基金(DBZD070-2014)

摘　　要：采用碱熔-碲共沉淀分离富集,用电感-耦合等离子体发射光谱法（ICP-AES）测定精细化工废催化剂不溶渣中的铂、钯、铑含量。系统考察了碱熔解和碲共沉淀富集分离的条件,研究了碲富集物中的主要元素和比例,确定了ICP-AES法测定铂、钯、铑的条件。结果表明,碱熔-共沉淀能够充分分离富集样品中的铂、钯、铑;测定催化剂不溶渣中653-3652 g/t铂、447-3804 g/t钯、539-6433g/t铑时,相对标准偏差（RSD）、样品加标回收率分别为铂0.84%-1.78%、97.0%-99.4%,钯1.05%-1.82%、97.0%-100.6%,铑1.00%-2.12%、98.2%-100.4%。方法分析快速、易于掌握,已用于生产分析中。With alkali fusion, tellurium co-precipitation separation, contents of Pt, Pd and Rh in insoluble slag of fine-chemical industry spent catalysts were determined by ICP-AES. The conditions of alkali fusion, tellurium co-precipitation separation, components of the enrichment, and ICP-AES determination condition were systemic investigated. Results indicated that Pt, Pd and Rh in the slag can be completely separated and enriched by fusion and co-precipitation. Contents of 653-3652 g/t Pt, 447-3804 g/t Pd, and 539-6433 g/t Rh in the slag were determined. The relative standard deviation （RSD）, recoveries of standard addition were 0.84%-1.78%, 97.0%-99.4% for Pt, 1.05%-1.82%, 97.0%-100.6% for Pd, and 1.00%-2.12%, 98.2%-100.4% for Rh, respectively. The proposed method was rapid, easy to master and has beed applied to production analysis.

关 键 词：分析化学 ICP-AES法 精细化工废催化剂不溶渣 铂 钯 铑 

分 类 号：O655.23[理学—分析化学]