2nd generation biomass derived glucose conversion to 5-hydroxymethylfurfural and levulinic acid catalyzed by ionic liquid and transition metal sulfate: Elucidation of kinetics and mechanism

2020 ◽  
Vol 256 ◽  
pp. 120292 ◽  
Author(s):  
Komal Kumar ◽  
Shailesh Pathak ◽  
Sreedevi Upadhyayula
Keyword(s):  
Ionic Liquid ◽  
Transition Metal ◽  
Levulinic Acid ◽  
Kinetics And Mechanism ◽  
Metal Sulfate ◽  
2Nd Generation ◽  
Acid Catalyzed

Selective and recyclable depolymerization of cellulose to levulinic acid catalyzed by acidic ionic liquid

2015 ◽  
Vol 117 ◽  
pp. 569-576 ◽  
Author(s):  
Huifang Ren ◽  
Buana Girisuta ◽  
Yonggui Zhou ◽  
Li Liu
Keyword(s):  
Ionic Liquid ◽  
Levulinic Acid ◽  
Acidic Ionic Liquid ◽  
Acid Catalyzed

Direct conversion of lignocellulose to levulinic acid catalyzed by ionic liquid

2018 ◽  
Vol 181 ◽  
pp. 778-784 ◽  
Author(s):  
Li Liu ◽  
Zhenrui Li ◽  
Wuxin Hou ◽  
Haiyan Shen
Keyword(s):  
Ionic Liquid ◽  
Levulinic Acid ◽  
Direct Conversion ◽  
Acid Catalyzed

Transition-metal-free borylation of propargylic alcohols: structurally variable synthesis in ionic liquid medium

2019 ◽  
Vol 6 (11) ◽  
pp. 1895-1899 ◽  
Author(s):  
Sangepu Bhavanarushi ◽  
Yin Xu ◽  
Imran Khan ◽  
Zhibin Luo ◽  
Bin Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Transition Metal ◽  
Liquid Medium ◽  
Propargylic Alcohols ◽  
Metal Free ◽  
Ionic Liquid Medium

Transition-metal-free borylation of unactivated propargylic alcohols in basic ionic liquids allowed the construction of various highly functionalized vinylboronates.

ChemInform Abstract: CYCLOHEXADIENYL CATIONS. 7. KINETICS AND MECHANISM OF THE ACID-CATALYZED DIENOL-BENZENE REARRANGEMENT

1978 ◽  
Vol 9 (23) ◽  
Author(s):  
V. P. VITULLO ◽  
M. J. CASHEN ◽  
J. N. MARX ◽  
L. J. CAUDLE ◽  
J. R. FRITZ
Keyword(s):  
Kinetics And Mechanism ◽  
Acid Catalyzed

Characteristics of Solid Super Acid SO42-/TiO2-Al2O3-SnO2 during Conversion of Glucose to Levulinic Acid

2012 ◽  
Vol 550-553 ◽  
pp. 103-106
Author(s):  
Ying Liu ◽  
Lu Lin ◽  
Xiao Yu Sui ◽  
Jun Ping Zhuang ◽  
Chun Sheng Pang
Keyword(s):  
Binding Energy ◽  
Levulinic Acid ◽  
Diffraction Peak ◽  
Catalyst Amount ◽  
Hydroxymethyl Furfural ◽  
Good Catalytic Activity ◽  
Super Acid ◽  
Diffraction Peaks ◽  
Acid Catalyzed ◽  
Hydrolysis Of

The effects of catalyst amount on the yields of levulinic and hydroxymethyl furfural were investigated during conversion of glucose to levulinic acid catalyzed by solid super acid SO42- / TiO2-Al2O3-SnO2. XRD and XPS were used to analyse the characteristics of solid super acid SO42- / TiO2-Al2O3-SnO2 before reaction and after reaction. The results showed that: solid super acid SO42- / TiO2-Al2O3-SnO2exhibited good catalytic activity in the reaction of hydrolysis of glucose to produce levulinic acid. There were three obvious peaks in these XRD spectra. The peaks on 44.6° and 67.1° were the characteristic diffraction peaks of γ-Al2O3. The anatase characteristic diffraction peak was on 37.4°. The catalyst was steady in the process. The binding energy of S 2p was similar to the binding energy of standard S6+ 2p in the S 2p XPS spectrum of solid super acid. O 1s XPS was double-peaked spectrum. The increase of element C was the main reason of inactivation of catalyst.

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