硅铝基含铂、钯废催化剂浸出试验研究

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中图分类号：TF833；X705 文献标识码：A 文章编号：1008-9500（2025）11-0007-03

DOI： 10.3969/j.issn.1008-9500.2025.11.003

Leaching Experimental Study of Silicon-Aluminum Based Platinum - Palladium Waste Catalysts

YANG Han，LIU Guiqing， YAN Ke， ZHANG Fan，WANG Fang， ZHANG Baoming （Jiangsu BGRIMMMetal Recycling Science& Technology Co.，Ltd.，Xuzhou221121，China

Abstract： Platinum and palladium have good chemical stabilityandcatalytic activity，which are often usedas active components incatalysts，and are widely used in fields such as petrochemicals，environmental governance，and energy conversion.The silicon-aluminum basedcarrer platinum-paladiumcatalyst hasalarge specificsurfacearea andexcellent sintering resistance，maintaining good catalyticactivity inhigh temperature and high toxicitysenarios.But astheusage time prolongs，thecatalyst willbe scrapped due to alarge amount of carbon deposits and organic matter adhering to the surface.At present，the wet process is themain method for recovering platinum and palladium from silicon-aluminum based platinum-palladium wastecatalysts，includingcarrier disolution methodand active component dissolution method. For silicon-aluminum based platinum-palldium waste catalysts，leaching experiments are conducted using the active component disslution method，withafocusoninvestigating theefects ofhydrochloricacidconcentration，stiring time， and static insulation time on the platinum and palladium leaching rates.Theresults show that under theconditions of hydrochloric acid concentration of 6mol/L ， stirring time of 2.0h ，and static insulation time of 3.0h ，the platinum leaching rate is 99.15% and the palladium leaching rate is 99.04% ：

Keywords： silicon-aluminum based platinum-palladium wastecatalyst; active component dissolution method; leaching

铂、钯均为铂族金属，化学稳定性和催化活性良好，常被用作催化剂的活性组分，广泛应用于诸多领域，如石油化工、环境治理及能源转换等[]。（剩余2969字）