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Significant Acceleration of PGMs Extraction with UCST-Type Thermomorphic Ionic Liquid at Elevated Temperature
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-22 00:00:00 , DOI: 10.1021/acssuschemeng.7b04447 Soma Kono 1 , Hiroyuki Kazama 2 , Takahiro Mori 2 , Tsuyoshi Arai 3 , Koichiro Takao 2
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2018-01-22 00:00:00 , DOI: 10.1021/acssuschemeng.7b04447 Soma Kono 1 , Hiroyuki Kazama 2 , Takahiro Mori 2 , Tsuyoshi Arai 3 , Koichiro Takao 2
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Dependency of extraction behavior of inert platinum group metals (PGMs) like Ru(III) and Rh(III) on temperature has been investigated in a biphasic system consisting of HNO3(aq) and betainium bis(trifluoromethylsulfonyl)amide ([Hbet][Tf2N]) ionic liquid. The extraction reactions of Ru(III) and Rh(III) took 3.5 days and 113 days, respectively, at 298 K, while equilibrated within 1 and 3 h to reach 99.2% and 96.5% extraction at 353 K. Further mechanistic studies clarified that the complexation of these PGMs and [Hbet]+ is rate-determining in their extraction and that it is successfully accelerated and enhanced by elevating the temperature.
中文翻译：
高温下用UCST型热形离子液体萃取PGM的显着加速
在由HNO 3（aq）和双（三氟甲基磺酰基）酰胺铍（[Hbet] []组成的双相系统中，研究了Ru（III）和Rh（III）等惰性铂族金属（PGM）的萃取行为对温度的依赖性。 Tf 2 N]）离子液体。Ru（III）和Rh（III）的萃取反应分别在298 K下进行了3.5天和113天，而在1和3 h内达到平衡，在353 K下达到99.2％和96.5％的萃取。进一步的机理研究表明这些PGM和[Hbet] +的络合速度决定了它们的提取，并且通过升高温度成功地促进和增强了它。
更新日期：2018-01-22
中文翻译：
高温下用UCST型热形离子液体萃取PGM的显着加速
在由HNO 3（aq）和双（三氟甲基磺酰基）酰胺铍（[Hbet] []组成的双相系统中，研究了Ru（III）和Rh（III）等惰性铂族金属（PGM）的萃取行为对温度的依赖性。 Tf 2 N]）离子液体。Ru（III）和Rh（III）的萃取反应分别在298 K下进行了3.5天和113天，而在1和3 h内达到平衡，在353 K下达到99.2％和96.5％的萃取。进一步的机理研究表明这些PGM和[Hbet] +的络合速度决定了它们的提取，并且通过升高温度成功地促进和增强了它。
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