用金作保护剂铅试金富集汽车尾气净化催化剂中铂钯铑的研究  

Study on Gold as Protective Reagent for Enrichment Pt,Pd and Rh by Lead Assaying for Automobile Exhaust-purifying Catalysts

作　　者：管有祥[1] 徐光[1] 王应进[1] 吴晓峰[1] 刘霞[1] 朱利亚[1] 刘云杰[1] 马媛[1] 安中庆[1] 甘建壮[1] 

机构地区：[1]昆明贵金属研究所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》2011年第2期67-71,共5页Precious Metals

基　　金：贵研铂业股份有限公司R&D基金(No:GY-09-RD10)

摘　　要：建立了用金作保护剂,铅试金一步富集汽车尾气净化催化剂中铂钯铑的方法。研究了金保护剂的条件,对比了不同方法的富集效果。结果表明:加入20～40 mg金作保护剂,试金配料硅酸度为1.0,进炉温度900℃1,130℃恒温10 min,熔炼时间50～60 min,灰吹温度910℃,可完全富集500μg铂钯铑。方法富集效果好,操作简便,适用于汽车尾气净化催化剂、熔炼渣以及日常样品中0.x～xxxx g/t铂钯铑的分析。A method of lead-assaying one-step enrichment of platinum,palladium and rhodium for automobile exhaust-purifying catalysts using gold protective reagent was established.The conditions for gold protective reagent were dominantly researched.The proposed method was compared with others at enrichment effect.Results indicated that when gold protective reagent 20~40 mg,assaying material silicate degree 1.0,enter-stove temperature 900℃,1130℃ constant temperature 10 min,melting 50~60 min and puffing temperature 910℃,500 μg of platinum,palladium and rhodium is enriched.The proposed method has good enrichment effect,convenient operation and was applied to determination of 0.x^xxxx g/t platinum,palladium and rhodium in automobile exhaust-purifying catalysts,slags and ordinary samples.

关 键 词：分析化学 火试金 催化剂 金保护剂 铂钯铑 

分 类 号：O657.31[理学—分析化学]