含铬下脚料中铬的回收方法

摘要

本文概述了国内外目前从含铬下脚料中回收铬的方法：碱法、酸法、氧化法、焚烧法。并就各种方法的利弊提出了自己的观点。%Five recovery methods of chromium from chromed r-esidues arc stated in this paper. Theresidues can be hydrolyzed, catalyzed with alkalis, acids and enzymes to get Cr(OH)3 deposit. Byoxidation or incineration, Cr( Ⅲ ) can be completely or partly changed to chromate.