Acid Catalysis in Sulfuric Acid-Acetic Acid Solutions. The Rate of Bromination of m-Nitroacetophenone1

1936 ◽  
Vol 58 (11) ◽  
pp. 2182-2187 ◽  
Author(s):  
Martin A. Paul ◽  
Louis P. Hammett
Keyword(s):  
Acetic Acid ◽  
Sulfuric Acid ◽  
Acid Catalysis ◽  
Acid Solutions

Chain Length Breakdown of Cellulose by Acetic Acid Solutions of Water and Sulfuric Acid

1958 ◽  
Vol 50 (1) ◽  
pp. 103-106
Author(s):  
C. J. Maim ◽  
K. T. Barkey ◽  
E. B. Lefferts ◽  
R. T. Gielow
Keyword(s):  
Acetic Acid ◽  
Sulfuric Acid ◽  
Chain Length ◽  
Acid Solutions

Protection features of chromium-nickel steel in sulfuric acid solutions by triazole derivative

2019 ◽  
pp. 15-21
Author(s):  
Ya.G. Avdeev ◽  
◽  
Yu.B. Makarychev ◽  
D.S. Kuznetsov ◽  
L.P. Kazanskii ◽  
...  
Keyword(s):  
Sulfuric Acid ◽  
Nickel Steel ◽  
Acid Solutions ◽  
Triazole Derivative ◽  
Sulfuric Acid Solutions

scholarly journals Aliphatic extractive effects on acetic acid catalysis of typical agricultural residues to xylo-oligosaccharide and enzymatic hydrolyzability of cellulose

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jianming Guo ◽  
Kaixuan Huang ◽  
Rou Cao ◽  
Junhua Zhang ◽  
Yong Xu
Keyword(s):  
Acetic Acid ◽  
Acid Catalysis ◽  
Cost Effective ◽  
Economic Benefits ◽  
Ethanol Extraction ◽  
Minimal Impact ◽  
Aliphatic Compounds ◽  
Organic Solvent Extraction ◽  
Promising Application ◽  
Poplar Sawdust

Abstract Background Xylo-oligosaccharide is the spotlight of functional sugar that improves the economic benefits of lignocellulose biorefinery. Acetic acid acidolysis technology provides a promising application for xylo-oligosaccharide commercial production, but it is restricted by the aliphatic (wax-like) compounds, which cover the outer and inner surfaces of plants. Results We removed aliphatic compounds by extraction with two organic solvents. The benzene–ethanol extraction increased the yield of acidolyzed xylo-oligosaccharides of corncob, sugarcane bagasse, wheat straw, and poplar sawdust by 14.79, 21.05, 16.68, and 7.26% while ethanol extraction increased it by 11.88, 17.43, 1.26, and 13.64%, respectively. Conclusion The single ethanol extraction was safer, more environmentally friendly, and more cost-effective than benzene–ethanol solvent. In short, organic solvent extraction provided a promising auxiliary method for the selective acidolysis of herbaceous xylan to xylo-oligosaccharides, while it had minimal impact on woody poplar.

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