Selective extraction of neutral nitrogen compounds found in diesel feed by 1-butyl-3-methyl-imidazolium chloride

Xie, Linghai; Favre‐Réguillon, Alain; Wang, Xuxu; Fu, Xianzhi; Pellet‐Rostaing, Stéphane; Toussaint, G.; Geantet, Christophe; Vrinat, M.; Lemaire, Marc

doi:10.1039/b800789f

Cited by 91 publications

(86 citation statements)

References 60 publications

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“…However, ILs have a relatively high polarity due to their charged and asymmetric structures [15], which cause them not to have a good affinity with weak-polar compounds and thus this gives rise to a reduction in the distribution of weak-polar compounds in the IL phase. Although a longer alkyl chain of ILs has a lower polarity, their viscosity is large in accordance with the strong electrostatic and hydrogen bonding interaction between the ions [16,17]. This drawback impairs the mixing and transferring properties in the extraction process by influencing the dissolution of the compounds in ILs.…”

Section: Ionic Liquid Binary Solvent System As Phytochemical Extractantmentioning

confidence: 99%

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Imidazolium-Based Ionic Liquid Binary Solvent System as an Extraction Medium in Enhancing the Rotenone Yield Extracted from Derris elliptica Roots

Othman¹,

Hassan²,

Zubairi³

2017

Progress and Developments in Ionic Liquids

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Rotenone, is a biopesticide which can be isolated from Derris species roots. However, procuring significant amount of rotenone using green alternative solvent rather than harmful organic solvents for commercialization is a challenge to be faced. Therefore, an approach using imidazolium-based ionic liquids (ILs) as an extraction medium was employed in this study. Five different types of binary solvent systems comprising a combination of acetone and five respective ionic liquids (ILs) of (1) (5) [BMPy] Cl were used in the normal soaking extraction (NSE) of rotenone for a 24-hour extraction. The yield of the rotenone, % (w/w), and its concentration (mg/mL) in the dried roots was quantitatively determined by means of the reversed-phase high-performance liquid chromatography (RP-HPLC) and thin-layer chromatography (TLC). The results showed that a binary solvent system of [BMIM] OTf:acetone was the best solvent system combination compared to other solvent systems (p < 0.05). It contributed to the highest rotenone content of 2.69 ± 0.21% (w/w) (4.04 ± 0.34 mg/ml) at the 14th hour of the exhaustive extraction time. In conclusion, a combination of certain ILs with a selective organic solvent has been proven to be able to increase a significant amount of bioactive constituents in the phytochemical extraction process.

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Section: Ionic Liquid Binary Solvent System As Phytochemical Extractantmentioning

confidence: 99%

“…The viscosity of ILs increases with longer alkyl chain of ILs in accordance with the strong electrostatic and hydrogen bonding interaction between ions [16,17]. The high viscosity of ILs will hinder the mixing and transferring of properties in the extraction process by influencing the dissolution of the compounds in ILs.…”

Section: Introductionmentioning

confidence: 98%

Imidazolium-Based Ionic Liquid Binary Solvent System as an Extraction Medium in Enhancing the Rotenone Yield Extracted from Derris elliptica Roots

Othman¹,

Hassan²,

Zubairi³

2017

Progress and Developments in Ionic Liquids

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“…The results show that CAR has higher distribution coefficient than DBT in these ILs phases. The CAR distribution coefficients in BMImCl and AlMImCl are 46 and 14, and the selectivity of CAR/DBT is 125 and 38, respectively (c Xie et al, 2008). …”

Section: Denitrogenation Of Gasolinesmentioning

confidence: 99%

Perspectives of Ionic Liquids Applications for Clean Oilfield Technologies

Martínez‐Palou¹,

Sánche²

2011

Ionic Liquids: Theory, Properties, New Approaches

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“…Since the four tocopherol homologues are likely to have different hydrogen bond acidities due to their structural difference in the number and position of methyl groups on the chromanol head, they may be effectively separated with each other by certain ILs via hydrogen bonding interaction. So, 1-butyl-3-methylimidazolium chloride ([C 4 mim]Cl) was selected as a model extractant for the separation of tocopherol homologues, as it had a relatively strong ability of interacting with hydrogen bond donor molecules (Armstrong et al, 1999;Xie et al, 2008). (Armstrong et al, 1999;Xie et al, 2008) (Armstrong et al, 1999;Xie et al, 2008) (Armstrong et al, 1999;Xie et al, 2008) (Armstrong et al, 1999;Xie et al, 2008) (Armstrong et al, 1999;Xie et al, 2008) [C 4 mim]Cl was diluted with methanol before use as it was highly viscous or even solid near room temperature.…”

Section: Separation Of Structurally Related Natural Compoundsmentioning

confidence: 99%