Direct conversion of starch to hydroxymethylfurfural in the presence of an ionic liquid with metal chloride

AbstractConversion of lignocellulose into useful chemicals is an important research topic in the area of biomass utilization. In this study, microcrystalline cellulose (MC) was dissolved in a mixed-solvent system containing the ionic liquid (IL) 1-allyl-3-methylimidazolium chloride ([Amim]Cl) andN-methyl-pyrrolidone (NMP), and the cellulose was directly converted into methyl glucoside (MG) by acid-catalyzed methanolysis aided by microwave irradiation (μWIr). Under moderate reaction temperature and pressure, and in the presence of acetyl chloride/methanol (in situformed HCl) as an acid catalyst, MG was obtained in a 42% yield. In contrast, in the absence of either IL or μWIr, the MG yield was only 5 or 21%, respectively. Both μWIr and the dissolution of cellulose in IL were quite effective for the conversion of cellulose into MG.

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Direct conversion of citrus peel waste into hydroxymethylfurfural in ionic liquid by mediation of fluorinated metal catalysts

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2012.09.004 ◽

2013 ◽

Vol 19 (2) ◽

pp. 523-528 ◽

Cited By ~ 7

Author(s):

Young-Byung Yi ◽

Myoung-Gyu Ha ◽

Jin-Woo Lee ◽

Suk-Man Park ◽

Young-Hun Choi ◽

...

Keyword(s):

Ionic Liquid ◽

Direct Conversion ◽

Metal Catalysts ◽

Citrus Peel

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Rapid conversion of cellulose to 5-hydroxymethylfurfural using single and combined metal chloride catalysts in ionic liquid

Journal of Fuel Chemistry and Technology ◽

10.1016/s1872-5813(13)60013-4 ◽

2013 ◽

Vol 41 (2) ◽

pp. 214-222 ◽

Cited By ~ 25

Author(s):

Hussein Abou-Yousef ◽

El Barbary Hassan ◽

Philip Steele

Keyword(s):

Ionic Liquid ◽

Metal Chloride ◽

Rapid Conversion

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Screening of Metal Chloride Anion-based Ionic Liquids for Direct Conversion of Hydrogen Sulfide by COSMO-RS

E3S Web of Conferences ◽

10.1051/e3sconf/202128702003 ◽

2021 ◽

Vol 287 ◽

pp. 02003

Author(s):

Muhammad Syahir Aminuddin ◽

Zakaria Man ◽

Mohamad Azmi Bustam Khalil ◽

Bawadi Abdullah

Keyword(s):

Ionic Liquids ◽

Hydrogen Sulfide ◽

Thermal Properties ◽

Direct Conversion ◽

Chloride Anion ◽

Metal Chloride ◽

Physiochemical Properties ◽

Model Simulations ◽

And Performance ◽

Reaction Media

In order to identify the best possible reaction media for performing H2S conversion, a total number of 300 different ILs from a combination of 20 cations and 15 anions were screened via COSMO-RS model simulations. By COSMO-RS method, thermodynamic and physicochemical properties of 300 ILs such as Henry’s law constants, activity coefficient, selectivity, capacity and performance index are obtained and analyzed. Thus, by comparing the performance of ILs via COSMO-RS, a series of TSILs containing cation of [P66614] with metal chloride anions such as Fe, Ga and Sn were chosen and selected for synthesis based on their performance predicted by COSMO-RS and their economic values. Consequently, the physiochemical properties such as density, viscosity, thermal properties, as well as H2S absorptive oxidation performances in those TSILs will be systematically investigated.

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ChemInform Abstract: Chitosan Supported Ionic Liquid: A Recyclable Wet and Dry Catalyst for the Direct Conversion of Aldehydes into Nitriles and Amides under Mild Conditions.

ChemInform ◽

10.1002/chin.201447076 ◽

2014 ◽

Vol 45 (47) ◽

pp. no-no

Author(s):

Ali Khalafi-Nezhad ◽

Somayeh Mohammadi

Keyword(s):

Ionic Liquid ◽

Direct Conversion ◽

Supported Ionic Liquid ◽

Mild Conditions

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Comparison of glucose conversion to 5-HMF using different modified mordenites in ionic liquid and biphasic media

Catalysis Science & Technology ◽

10.1039/c5cy02070k ◽

2016 ◽

Vol 6 (8) ◽

pp. 2766-2774 ◽

Cited By ~ 25

Author(s):

W. Mamo ◽

Y. Chebude ◽

C. Márquez-Álvarez ◽

I. Díaz ◽

E. Sastre

Keyword(s):

Ionic Liquid ◽

Ethyl Acetate ◽

Direct Conversion ◽

Biphasic System

Modified mordenites have been used in the direct conversion of glucose into 5-hydroxymethylfurfural (5-HMF) in two different media: the ionic liquid 1-butyl-3-methylimidazolium bromide ([BMIM]Br) and a biphasic system composed of water–acetone and ethyl acetate.

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