Cherepakhin Valeriy, Williams Travis J
Loker Hydrocarbon Research Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, United States.
Green Chem. 2024 Mar 21;26(6):3146-3148. doi: 10.1039/d4gc00151f. Epub 2024 Feb 14.
We report the first process for iridium element recovery from organoiridium waste that is quantitative, pyrolysis-free, and generates no iridium metal. The key step is oxidative degradation of the waste by bleach to crude iridium(IV) hydroxide. Its treatment with hydrazine and then hydrogen peroxide gives synthetically important hexachloroiridic acid, which is converted to [(1,5-cyclooctadiene)IrCl] in 87% yield.
我们报道了首个从有机铱废料中回收铱元素的方法，该方法具有定量、无热解且不产生铱金属的特点。关键步骤是用漂白剂将废料氧化降解为粗氢氧化铱（IV）。用肼处理粗氢氧化铱（IV），然后用过氧化氢处理，得到具有重要合成价值的六氯铱酸，六氯铱酸再转化为[(1,5 - 环辛二烯)IrCl]，产率为87%。
