Direct Conversion of Cellulose to Glycolic Acid with a Phosphomolybdic Acid Catalyst in a Water Medium

ACS Catalysis ◽  
2012 ◽  
Vol 2 (8) ◽  
pp. 1698-1702 ◽  
Author(s):  
Jizhe Zhang ◽  
Xin Liu ◽  
Miao Sun ◽  
Xiaohua Ma ◽  
Yu Han
Keyword(s):  
Glycolic Acid ◽  
Acid Catalyst ◽  
Phosphomolybdic Acid ◽  
Direct Conversion ◽  
Water Medium

scholarly journals Experimental and kinetic study of the conversion of waste starch into glycolic acid over phosphomolybdic acid

RSC Advances ◽  
2021 ◽  
Vol 11 (49) ◽  
pp. 30961-30970
Author(s):  
Yongzhen Qiao ◽  
Xiu Wang ◽  
Hongqi Dai
Keyword(s):  
Kinetic Study ◽  
Resource Utilization ◽  
Potential Application ◽  
Glycolic Acid ◽  
Value Added ◽  
Phosphomolybdic Acid ◽  
Clean Production ◽  
Corrugated Cardboard

The starch in old corrugated cardboard (OCC) wastewater is catalyzed and oxidized to produce high value-added glycolic acid, which has potential application value for the clean production and resource utilization of waste starch in the OCC papermaking process.

scholarly journals Methane Conversion to Liquid Hydrocarbons over W-ZSM-5 and W Loaded Cu/HZSM-5

2006 ◽  
Vol 6 (2) ◽  
pp. 58 ◽  
Author(s):  
Didi Dwi Anggoro ◽  
Nor Aishah Saidina Amin
Keyword(s):  
Methane Conversion ◽  
Principal Component ◽  
Acid Catalyst ◽  
Liquid Hydrocarbon ◽  
Direct Conversion ◽  
Catalytic Performance ◽  
Liquid Hydrocarbons ◽  
Oxidation Of Methane ◽  
Highly Active ◽  
To Come

The direct conversion of natural gas-in particular, its principal component, methane into useful products has been the subject of intense study over the past decades. However, commercialization of this process is still not viable because its conversion and selectivity potentials remain low. Thus, the search continues to come up with a suitable catalyst that allows methane to be oxidized in a controlled environment to yield a high percentage of higher hydrocarbons. ZSM-5 zeolite has been known to be a suitable catalyst for olefin oligomerization. Previous studies, however, have indicated that ZSM-5 zeolites are not resistant to high temperatures. In this work, ZSM-5 was modified with copper and tungsten to develop a highly active and heat-resistant bifunctional oxidative acid catalyst. The oxidation of methane was performed over W/Cu/HZSM-5 catalyst and the results compared with the catalytic performance of W/ HZSM-5 and HZSM-5 catalysts. The metal oxide on the catalyst surface led to enhanced conversion of Hz and CO to CZ-3 ydrocarbons and, hence, reduced HzO selectivity. Inh the liquid hydrocarbons, Cs+ selectivity increased with increasing amount of surface Bn1Jnstedacid sites. The experimental results indicated higher methane conversion and liquid hydrocarbon selectivity than that of W/3.0Cu/HZSM-5 catalyst.

Direct conversion of cellulose into glycolic acid by a zinc-stabilized UV-Fenton reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (8) ◽  
pp. 5741-5744 ◽  
Author(s):  
Z. She ◽  
J. G. Wang ◽  
J. P. Ni ◽  
X. Q. Liu ◽  
R. Y. Zhang ◽  
...  
Keyword(s):  
Fenton Reaction ◽  
Glycolic Acid ◽  
Direct Conversion ◽  
Mild Conditions

Direct conversion of cellulose into glycolic acid at mild conditions was realized by a zinc-stabilized UV-Fenton reaction.

ChemInform Abstract: Phosphomolybdic Acid: An Efficient and Recyclable Solid Acid Catalyst for the Synthesis of 4,4′-(Arylmethylene)bis(1H-pyrazol-5-ols).

ChemInform ◽  
2012 ◽  
Vol 43 (36) ◽  
pp. no-no
Author(s):  
Kiran R. Phatangare ◽  
Vikas S. Padalkar ◽  
Vinod D. Gupta ◽  
Vikas S. Patil ◽  
Prashant G. Umape ◽  
...  
Keyword(s):  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Phosphomolybdic Acid

A synergetic effect of ionic liquid and microwave irradiation on the acid-catalyzed direct conversion of cellulose into methyl glucopyranoside

Holzforschung ◽  
2018 ◽  
Vol 72 (12) ◽  
pp. 1025-1030
Author(s):  
Mafuyu Saito ◽  
Takao Kishimoto ◽  
Masahiro Hamada ◽  
Noriyuki Nakajima ◽  
Daisuke Urabe
Keyword(s):  
Ionic Liquid ◽  
Microwave Irradiation ◽  
Synergetic Effect ◽  
Acid Catalyst ◽  
Solvent System ◽  
Direct Conversion ◽  
Important Research Topic ◽  
Acid Catalyzed ◽  
Methyl Pyrrolidone

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.

Mechanistic Investigation into the Rearrangement of Lactone into Methacrylic Acid over Phosphomolybdic Acid Catalyst

2010 ◽  
Vol 136 (1-2) ◽  
pp. 28-34 ◽  
Author(s):  
Ngoc Ha Nguyen ◽  
Shane Kendell ◽  
Cam Le Minh ◽  
Trevor Brown
Keyword(s):  
Methacrylic Acid ◽  
Acid Catalyst ◽  
Phosphomolybdic Acid ◽  
Mechanistic Investigation

An extremely stable and highly active periodic mesoporous Lewis acid catalyst in water-medium Mukaiyama-aldol reaction

2013 ◽  
Vol 15 (10) ◽  
pp. 2865 ◽  
Author(s):  
Fang Zhang ◽  
Chao Liang ◽  
Mingzheng Chen ◽  
Haibing Guo ◽  
Huangyong Jiang ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Aldol Reaction ◽  
Acid Catalyst ◽  
Water Medium ◽  
Mukaiyama Aldol Reaction ◽  
Highly Active ◽  
Mukaiyama Aldol ◽  
Lewis Acid Catalyst

Silica-Supported Phosphomolybdic Acid Catalyst for the Ferrier Reaction

Synfacts ◽  
2006 ◽  
Vol 2006 (10) ◽  
pp. 1081-1081
Author(s):  
J. Yadav ◽  
M. Satyanarayana ◽  
E. Balanarsaiah ◽  
S. Raghavendra
Keyword(s):  
Acid Catalyst ◽  
Phosphomolybdic Acid
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