废氢燃料电池催化剂中铱的回收工艺研究

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关键词：氢燃料电池催化剂；铂族金属；铱；熔融

中图分类号：TQ116.2 文献标识码：A 文章编号：1008-9500（2025）10-0029-03

DOI： 10.3969/j.issn.1008-9500.2025.10.008

Abstract： Using waste hydrogen fuelcellcatalyst as the experimentalraw material，efficient recoveryof iridium was achieved through meltoxidation-acidleaching.Theefects of melting temperature，potasium hydroxide dosage，potassum nitratedosage，and melting insulation timeoniridiumrecoveryrate were mainlyanalyzed.The experimentalresults indicate that effcientrecoveryof iridiumfrom spent hydrogen fuel cell catalyst calcination slag can be achieved through melt oxidation-acid leaching; under optimal conditions，the average mass concentration of iridium in the leachate is 0.7376g/L ， and the average recovery rate of iridium is 99.55% ：

Keywords：hydrogen fuel cell catalysts;platinum group metals; iridium; melt

铱属于铂族金属，具有优异的耐高温性、化学稳定性及催化性能，广泛用于化工催化剂、高温零部件等领域，是重要的战略金属之一。（剩余3191字）