采用铵盐焙烧-酸浸法进行了从石油重整废催化剂中富集回收铂的研究。结果表明，适宜的铵盐焙烧条件为：硫酸铵与废催化剂质量比为7.5，焙烧温度350℃，焙烧时间5 h；稀酸浸出条件：液固比12.5，浸出温度80℃，硫酸浓度为0.5 mol/L，浸出时间3 h。在上述条件下，铂的富集倍数达到274倍以上。通过XRD分析，焙烧产物的物相主要以硫酸铝铵形式存在，焙烧产物通过稀酸浸出，实现铂的富集回收。
Enrichment and recovery of Pt from spent petroleum reforming catalyst by ammonium salt roasting-acid leaching process were studied. The result showed that, when the roasting suitable conditions as follows: (NH4)2SO4to spent catalysts mass ratio 7.5, roasting temperature 350℃, roasting time 5 h; and acid leaching conditions as follow: H2SO4 condition concentration 0.5 mol/L, leaching time 3h, leaching temperature 80℃, liquid to solid ratio 12.5, the enrichment of Pt is more than 274 times. Main mineral phase in the roasted product is NH4Al(SO4)2, the product was leached with acid, realizing enrichment and recovery of Pt by acid leaching.
参考文献
| [1] | 刘时杰.铂族金属冶金学[M].长沙:中南大学出版社,2013:1-9. |
| [2] | 傅建国.从石油重整废催化剂中回收铂[J].中国有色冶金,2006(02):43-44,50. |
| [3] | 杨茂才;孙萼庭;周杨霁 .从废铝基催化剂回收贵金属及铝的方法和消化炉[P].中国,1143682,1997-02-26. |
| [4] | 贺小塘,郭俊梅,王欢,李勇,吴喜龙,赵雨,韩守礼,李锟,谭文进,刘文.中国的铂族金属二次资源及其回收产业化实践[J].贵金属,2013(02):82-89. |
| [5] | 汪云华,吴晓峰,童伟锋.铂族金属催化剂回收技术及发展动态[J].贵金属,2011(01):76-81. |
| [6] | 张方宇;王海翔;姜东 等.从废重整催化剂中回收铂、铼、铝等金属的方法[P].中国,1342779A,2002-04-03. |
| [7] | 朱书全,张正红.氯酸钠氧化法从废氧化铝-铂催化剂中提取铂[J].贵金属,2006(01):6-9. |
| [8] | 杨茂才,孙萼庭.从含Pt废催化剂中回收Pt、Al的新工艺[J].贵金属,1996(03):20-24. |
| [9] | 王明 .从废催化剂中综合回收铂、铝的工艺研究[D].中南大学,2012. |
| [10] | 杜欣,张晓文,周耀辉,杨金辉,吕俊文.从废催化剂中回收铂族金属的湿法工艺研究[J].中国矿业,2009(04):82-85,88. |
| [11] | 杨洪飚,何蔼平,刘时杰.从失效载体催化剂回收铂的工艺研究[J].贵金属,2005(04):9-13. |
| [12] | 付光强,范兴祥,董海刚,吴跃东,刘杨,闫君禺,行卫东,左川.贵金属二次资源回收技术现状及展望[J].贵金属,2013(03):75-81. |
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