Ionic liquids types

A similar study performed by Welton and co-workers studied the rate and selec-tivities of the Diels-Alder reaction between cyclopentadiene and methyl acrylate in a number of neutral ionic liquids [44]. It was found that endo. exo ratios decreased slightly as the reaction proceeded, and were dependent on reagent concentration and ionic liquid type. Subsequently, they went on to demonstrate that the ionic liquids controlled the endo. exo ratios through a hydrogen bond (Lewis acid) interaction with the electron-withdrawing group of the dienophile. 

Schnee, V. R, Baker, G. A., Rank, E., and Ralmer, C. R, Electrokinetic chromatographic characterization of novel pseudo-phases based on N-alkyl-N-methyl-pyrrolidinium ionic liquid type surfactants. Electrophoresis, 2J, 4141-4148,2006. 

LiuYH YuL, Zhang SH et al (2010) Dispersion of multiwaUed carbon nanotubes by ionic liquid-type Gemini imidazolium surfactants in aqueous solution. CoUoids Surf A 359 66-70... 

During catalytic reactions using supported ionic liquid-type catalysts gaseous or vapor-phase reactants diffuse through the residual pore space of the catalyst, dissolve in the liquid catalyst phase, and react at catalyst sites within the thin liquid catalyst film dispersed on the walls of the pores in the support material, as illustrated in Fig. 5.6-1. The products then diffuse back out of the catalyst phase into the void pore space and further out of the catalyst particle. 

S.H. Park, D. Demberelnyamba, S.H. Jang et al., Ionic liquid-type crown ether as a novel medium for a liquid/liquid extraction of radioactive metal ion Sr +. Chem. Lett. 35 (2006) 1024. 

The effects of initial nitric acid concentration, residence time, flow rate ratio, mixture velocity, and ionic liquid type are discussed. In addition, the effects of scaling up on the mass transfer performance of the extractor are examined. The overall mass transfer coefficients (kLu) obtained for the three different channel sizes varied between 0.049 and 0.312 s. Finally, the possibihty of industrial application of the intensified extraction units is discussed. 

The last stage of the experimental part of this research involved extractions of dioxouranium(VI) ions from nitric acid solutions into TBP/IL mixtures (30 %, v/v), relevant to spent nuclear fuel reprocessing. The effects of channel size, ionic liquid type, initial nitric acid concentration, mixture velocity, flow rate ratio, and residence time on the extraction performance of the contactor were studied. The extraction experiments were carried out in Teflon capillaries with internal diameter ranging from 0.5 to 2 mm. The results were also compared to those obtained from equilibrium experiments. 

Figure 10.3 Kinetic and thermodynamic regime in the (siightiy exothermai) hydroam-ination of styrene with aniline in a fixed-bed reactor fiiied with a bifunctionai palladium(ll)-Br0nsted acid catalyst immobilized in a supported ionic liquid (Type B catalysts) [63],...

Ionic liquid type Structure Ionic liquid type Structure... 

Y. Ding, C. Guo, J.-Y. Dong, and Z. Wang, Novel organic modification of montmorillonite in hydrocarbon solvent using ionic liquids - Type surfactant for the preparation... 

Fig. 2. Typical steps for the ionic liquid (type N-alkylimidazolium)...

Weerachanchai P, Chen Z, Leong SSJ, Chang MW, Lee J-M (2012) Hildebrand solubility parameters of ionic liquids effects of ionic liquid type, temptaature and DMA Ifaction in ionic liquid. Chem Eng J 213 356-362... 

The second approach involving the use of ionic liquids in polymer electrolyte-based DSSC consists of the use of ionic polymers. " The ionic liquid-type polymer may have the desirable properties (similar to that of pure ionic liquids) and be employed in the fabrication of DSSC with high efficiency, without the problems of evaporation or leakage of the electrolyte during long-term operation. 

Ao, M. Q. Huang, P. P. Xu, G. Y. Yang, X. D. Wang, Y. J. (2009). Aggregation and thermodynamic properties of ionic liquid-type gemini imidazolium surfactants with different spacer length. Colloid Polym. Set, 287, 395-402. 

---