Platinum Recovery from Waste Materials of the Process of Ammonium Perchlorate Production
During the production of ammonium perchlorate, the involved platinum electrodes are extensively eroded and platinum metal accompanied by other materials are collected as wasted materials. This source waste material, SWM, is found, by atomic absorption spectroscopy, to be rich in Pt metal, but also contains some other useful and costly compounds, such as sodium perchlorate (SP), ammonium perchlorate (AP), barium sulfate, and chromate salts. By a careful treatment, it was possible to almost quantitatively separate all the components of the waste material. Thus, an initial treatment of the original SWM with boiling water separated the soluble perchlorate salts contents SP and AP. The treatment of the remaining insoluble material with hot conc. HCl, followed by H2SO4, separated the next component, barium sulfate. The remaining solution contained Pt4+, and Cr3+salts, components of which were separated by chemical absorption of the Pt salt on the surface of a freshly prepared aggregates of solid CuS. The overall treatment steps were simple, efficient and economical.
KASHI A. MOMENIZADEH PANDAS H. HASSANZADEH TOLOTI M.A.
Institute for Chemical Research and Technology,Tehran,Iran
国际会议
2011 International Autumn Seminar on Propellants,Explosives and Pyrotechnics(2011国际推进剂、炸药、烟火技术秋季研讨会)
南京
英文
961-965
2011-09-20（万方平台首次上网日期，不代表论文的发表时间）