硝酸生产过程中,应用铂网在氨氧化炉中作触媒,由于种种原因,铂网受到腐蚀而产生细粉脱落在炉灰之中。将其所含铂铑钯有效地加以回收利用,显然具有重大的实际意义。本试验之目的在于探寻选矿回收炉灰中铂的适合方法及其可以获得的选矿指标,以此作为与湿法和火法冶金方案对比的依据。必要时,也可作为小型生产的参考。 Nitric acid production process, the application of platinum mesh in the ammonia oxidation furnace as a catalyst, due to various reasons, platinum mesh corrosion caused by the fine powder off in the ash. It is obviously of great practical significance to recycle the platinum, rhodium and palladium contained therein effectively. The purpose of this experiment is to explore the beneficiation method for recovery of platinum in beneficiation furnace ash and its available beneficiation index as a basis for comparison with wet and pyrometallurgical schemes. If necessary, can also be used as a reference for small-scale production.