01644nas a2200193   4500008004100000022001400041245011800055210006900173260007100242300001400313490000700327520087900334100001701213700002001230700002501250700002901275700001801304856012801322       2009                        eng d  a0888-588500aMass transfer and solubility of CO and H-2 in ionic liquid. case of [Bmim][PF6] with gas-inducing stirrer reactor0 aMass transfer and solubility of CO and H2 in ionic liquid case o  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcAPR  a4075-40820 v483 a<p>Since the past decade, ionic liquids have gained significant importance as alternative solvents for catalysis applications. Many of the reactions evaluated in ionic liquids employ gases as substrates, and therefore it is important to know their solubility and mass transfer characteristics. This work reports for the first time both the solubility and volumetric gas-liquid mass transfer coefficient k(La) for hydrogen and carbon monoxide in 1-n-butyl-3-methylimidazolium hexafluorophosphate ([Bmim][PF6]) at three temperatures (293, 323, and 373 K) in relevance to hydroformylation reaction. The experimental data on the volumetric gas-liquid mass transfer coefficient are described by a dimensionless correlation for the bench-scale stirred tanks with gas-inducing impeller. k(La) values have also been evaluated for different [Bmim][PF6]-decane emulsions at 373 K.</p>1 aSharma, Amit1 aJulcour, Carine1 aKelkar, Ashutosh, A.1 aDeshpande, Raj, Madhukar1 aDelmas, Henri  uhttps://library.ncl.res.in/content/mass-transfer-and-solubility-co-and-h-2-ionic-liquid-case-bmimpf6-gas-inducing-stirrer-001537nas a2200193   4500008004100000022001400041245014600055210006900201260007100270300001600341490000700357520072900364100001701093700002901110700002901139700002501168700001801193856013201211       2010                        eng d  a0888-588500aHydroformylation of 1-octene using [Bmim][PF6]-decane biphasic media and rhodium complex catalyst: thermodynamic properties and kinetic study0 aHydroformylation of 1octene using BmimPF6decane biphasic media a  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcNOV  a10698-107060 v493 a<p>A chemical reaction engineering approach is reported to investigate the biphasic hydroformylation of I-octene using [bmim][PF6] ionic liquid. It is based both on a process parameter investigation (temperature, concentrations, and pressures) and a thermodynamic study of the reaction medium (gas liquid and liquid liquid equilibria). Initial rate data show complex behavior with respect to operating parameters and are best described by a rate equation based on a mechanistic model. Complete reaction scheme including isomerization is then modeled accounting from the time dependent concentration of the organic substrates measured in organic phase and recalculated in ionic liquid phase from liquid liquid equilibria.</p>1 aSharma, Amit1 aLebigue, Carine, Julcour1 aDeshpande, Raj, Madhukar1 aKelkar, Ashutosh, A.1 aDelmas, Henri  uhttps://library.ncl.res.in/content/hydroformylation-1-octene-using-bmimpf6-decane-biphasic-media-and-rhodium-complex-catalyst-002138nas a2200265   4500008004100000022001400041245012100055210006900176260010600245300001400351490000700365520112700372653002301499653003801522653001301560653002901573653002501602653001501627100002201642700002501664700001501689700002401704700001801728856012601746       2011                        eng d  a0009-250900aKinetics of hydroformylation of 1-octene in ionic liquid-organic biphasic media using rhodium sulfoxantphos catalyst0 aKinetics of hydroformylation of 1octene in ionic liquidorganic b  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcAPR  a1631-16390 v663 a<p>Biphasic hydroformylation of 1-octene was performed using rhodium sulfoxantphos catalyst dissolved in [BuPy][BF(4)] ionic liquid. Preliminary experiments proved this system to retain the catalytic complex within the ionic liquid phase and to maintain a high selectivity towards the linear aldehyde (n:iso ratio of 30) over several cycles. Process parameter investigation showed a first order dependence of the initial rate with respect to the catalyst and 1-octene concentrations, but a more complex behavior with respect to hydrogen (fractional order) and carbon monoxide partial pressures (inhibition at high pressures). Different mathematical models were selected based on the trends observed and evaluated for data fitting. Also, rate models were derived from a proposed mechanism, using Christiansen matrix approach. To calculate concentrations of substrates in the catalytic phase as required by this kinetic modeling, solubility measurements were preformed for the gases (pressure drop technique), as well as for 1-octene and n-nonanal (thermogravimetry analysis). (C) 2011 Elsevier Ltd. All rights reserved.</p>10aBiphasic catalysis10aButylpyridinium tetrafluoroborate10akinetics10aParameter identification10aReaction engineering10asolubility1 aDeshpande, R., M.1 aKelkar, Ashutosh, A.1 aSharma, A.1 aJulcour-Lebigue, C.1 aDelmas, Henri  uhttps://library.ncl.res.in/content/kinetics-hydroformylation-1-octene-ionic-liquid-organic-biphasic-media-using-rhodium-0