失效汽车尾气催化剂中贵金属的火法富集简述

A review on the enriching and recycling processes of PGMs from spent auto-catalysts by pyrometallurgy

根据目前贵金属应用前景、市场行情,从失效汽车催化剂中回收贵金属具有迫切性及必要性。综合考虑经济成本、回收效率、环保、安全、工艺成熟度以及可靠性,目前从失效汽车催化剂中回收贵金属主要采用火法富集、湿法精制提纯的工艺路线来展开。本文主要分析了采用火法冶金从失效汽车尾气催化剂中回收贵金属工艺的优缺点,并展望了在铂族金属回收领域中经济环保、且有利于工业化的工艺技术。

According to the promising application and market condition of precious metals,it is urgent and necessary to recover precious metals from spent auto-catalysts.Considering the economic cost,recovery efficiency,environmental protection,safety,maturity and reliability of process,the recovery of precious metals from spent auto-catalysts is mainly carried out by the route of pyrometallurgy and hydrometallurgy techniques.This paper analyzes the advantages and disadvantages of the process of recovering precious metals from spent auto-catalysts by pyrometallurgy,and looks forward to the process technology that is economical,environmental friendly and conducive to industrialization in the field of platinum group metals recovery.