摘要
稀硝酸生产装置以铂、钯贵金属合金作为氧化炉氨氧化反应的催化剂,长期高温反应冲刷下,贵金属损耗增加.普通回收贵金属,需要更换设备、清洗颗粒,耗费较大人力、资金、时间,通过流程中加装贵金属回收过滤器,实现过滤器滤芯与铂网更换同步,有效增加贵金属回收效率.
The dilute nitric acid production plant uses platinum and palladium precious metal alloys as catalysts for the ammonia oxidation reaction in the oxidation furnace.Under long-term high-temperature reaction erosion,the loss of precious metals increases.Ordinary recycling of precious metals requires equipment replacement and particle cleaning,which consumes a lot of manpower,funds,and time.By installing precious metal recycling filters in the process,the replacement of filter cartridges and platinum mesh can be synchronized,effectively increasing the efficiency of precious metal recycling.
作者
宋英健
李皓
赵建威
SONG Yingjian;LI Hao;ZHAO Jianwei(Hebei Jiheng Group Co.,Ltd.,Hengshui 053000,Hebei Province)
出处
《氮肥技术》
2025年第3期30-32,共3页
Nitrogenous Fertilizer Technology
关键词
稀硝酸
贵金属
过滤器
回收
效果
dilute nitric acid
precious metal
filter
recovery
effect
