Forte Federica, Riaño Sofia, Binnemans Koen
KU Leuven, Department of Chemistry, Celestijnenlaan 200F, PO box 2404, 3001 Leuven (Heverlee), Belgium.
Chem Commun (Camb). 2020 Jul 23;56(59):8230-8232. doi: 10.1039/d0cc02298e.
Highly concentrated solutions of AlCl3·6H2O and Al(NO3)3·9H2O were investigated for Au and platinum group metals dissolution. 95% Pd was leached from spent automotive catalysts in 15 min at 80 °C, while Pt required longer times; Rh dissolution was <20%. Au dissolution from wires required 24 h. Pd recovery was investigated by reductive precipitation.
研究了高浓度的六水合氯化铝（AlCl3·6H2O）和九水合硝酸铝（Al(NO3)3·9H2O）对金及铂族金属的溶解情况。在80℃下，15分钟内可从废旧汽车催化剂中浸出95%的钯，而铂的浸出需要更长时间；铑的溶解率小于20%。从金属丝中溶解金需要24小时。通过还原沉淀法研究了钯的回收情况。
