Cu(ii) extraction by supercritical fluid carbon dioxide from a room temperature ionic liquid using fluorinated β-diketones

2005 ◽  
Vol 7 (6) ◽  
pp. 421 ◽  
Author(s):  
Soufiane Mekki ◽  
Chien M. Wai ◽  
Isabelle Billard ◽  
Gilles Moutiers ◽  
Clive H. Yen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Supercritical Fluid ◽  
Room Temperature ◽  
Room Temperature Ionic Liquid ◽  
Supercritical Fluid Carbon Dioxide

scholarly journals Oxidative Carbonylation of Methanol to Dimethyl Carbonate in Ionic Liquid 1-Butyl-3-Methylimidazolium Hexafluorophosphate

2003 ◽  
Vol 2003 (9) ◽  
pp. 549-551 ◽  
Author(s):  
Tao Jiang ◽  
Buxing Han ◽  
Guoying Zhao ◽  
Yanhong Chang ◽  
Liang Gao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Supercritical Carbon Dioxide ◽  
Room Temperature ◽  
Dimethyl Carbonate ◽  
Room Temperature Ionic Liquid ◽  
Oxidative Carbonylation ◽  
Enhanced Selectivity ◽  
Supercritical Carbon

The synthesis of dimethyl carbonate (DMC) by oxidative carbonylation of methanol with PdCl2 as a catalyst was investigated in the room temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]). The products were recovered in situ using supercritical carbon dioxide. Enhanced selectivity of DMC over this catalyst was observed in the synthesis in [bmim][PF6] compared with the situation without the ionic liquid (IL). The mixture of catalyst and [bmim][PF6] could be recycled.

scholarly journals CLIP: Carbon Dioxide testing suitable for Low power microelectronics and IOT interfaces using Room temperature Ionic Liquid Platform

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ashlesha Bhide ◽  
Badrinath Jagannath ◽  
Ambalika Tanak ◽  
Richard Willis ◽  
Shalini Prasad
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Low Power ◽  
Room Temperature ◽  
Room Temperature Ionic Liquid

Comparative study on aqueous acid free UO2 dissolution-extraction using DHOA adduct into room temperature ionic liquid/supercritical carbon dioxide/n-hexane

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ankita Rao
Keyword(s):  
Carbon Dioxide ◽  
Ionic Liquid ◽  
Supercritical Carbon Dioxide ◽  
Room Temperature ◽  
Free Acid ◽  
Room Temperature Ionic Liquid ◽  
Dissolution Behavior ◽  
First Order ◽  
Aqueous Acid ◽  
Supercritical Carbon

Abstract Feasibility was established for direct dissolution-extraction of uranium employing adduct of N,N-dihexyl octanamide (DHOA), thus eliminating discrete aqueous phase and free acid usage. Various aspects of dissolution of solid uranium dioxide and extraction of uranium into molecular diluent viz. n-hexane and neoteric solvents viz. room temperature ionic liquid (RTIL) and supercritical carbon dioxide (SC CO2) were studied. The organic adduct was found to have composition DHOA.(HNO3)0.78(H2O)0.4. Adduct miscibility and UO2 dissolution behavior was markedly different for RTIL and n-hexane. The dissolution process, studied by monitoring UV–Vis spectra, was found to be pseudo first order with a rate constant of of 0.074 min−1 and 0.036 min−1 for n-hexane and RTIL respectively. Irrespective of medium, dissolution-extraction efficiency of ≥90% was achievable. Using RTIL for dissolution-extraction medium and SC CO2 for stripping is promising in terms of overall efficiency as well as RTIL recovery by avoiding aqueous cross contamination.

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