Octyl Co‐grafted PrSO3H/SBA‐15: Tunable Hydrophobic Solid Acid Catalysts for Acetic Acid Esterification
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DOI: 10.1002/cctc.201601370
Abstract: Propylsulfonic acid (PrSO3H) derivatised solid acid catalysts have been prepared by post‐modification of mesoporous SBA‐15 silica with mercaptopropyltrimethoxysilane (MPTMS), and the impact of co‐derivatisation with octyltrimethoxysilane (OTMS) groups to impart hydrophobicity to the catalyst was… read more here.
Keywords: solid acid; sba; acid catalysts; acid esterification ... See more keywords
Kinetics and Modelling of Levulinic Acid Esterification in Batch and Continuous Reactors
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DOI: 10.1007/s11244-018-0998-y
Abstract: The ethyl ester of levulinic acid, ethyl levulinate is a completely bio-based chemical made from levulinic acid, which is a hydrolysis product of cellulose and bio-ethanol. The very precise kinetics of levulinic acid esterification with… read more here.
Keywords: kinetics modelling; levulinic acid; acid esterification; batch ... See more keywords
Synthesis and characterization of sulfated zirconia mesopore and its application on lauric acid esterification
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DOI: 10.1007/s40243-017-0097-1
Abstract: Sulfated zirconia mesopore has been successfully prepared from zirconyl oxychloride using structure directing agent cetyl trimethyl ammonium bromide (CTAB) and (NH4)2SO4. The preparation involved calcination at four different temperatures denoted as MZS (400, 500, 600,… read more here.
Keywords: zirconia mesopore; lauric acid; acid esterification; sulfated zirconia ... See more keywords
Kinetic study of Amberlite IR120 catalyzed acid esterification of levulinic acid with ethanol: From batch to continuous operation
Sign Up to like & getrecommendations! Published in 2020 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2020.126126
Abstract: Abstract Levulinic acid (LA) is one of the most important platform chemicals as it is a versatile building block for a variety of high value-added products, fine chemicals and pharmaceutical intermediates. Catalytic esterification of LA… read more here.
Keywords: esterification; amberlite ir120; levulinic acid; ethanol ... See more keywords
Intramolecular Catalysis in Carboxylic Acid Esterification: Modeling of Single- and Multi-Acid Esterification
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DOI: 10.1021/acs.iecr.8b04666
Abstract: Downstream processing in the biorefinery is often faced with multicomponent process streams containing carboxylic acids and alcohols. Isolation of carboxylic acids may be simplified by direct esterification with the alcohol present in the process stream.… read more here.
Keywords: acid esterification; esterification; carboxylic acids; multi acid ... See more keywords
Balance between Catalyst Acidity and Hydrophilicity in Biofuel Production from Fatty Acid Esterification over Al-SBA-15
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DOI: 10.3390/catal13050827
Abstract: A collection of Al-SBA-15 mesoporous catalysts (Si/Al = 13–174) was investigated to overcome typical accessibility constraints of microporous solids. 27Al MAS NMR confirmed the existence of tetrahedrally coordinated Al in the catalyst’s framework, and the… read more here.
Keywords: acidity hydrophilicity; acid esterification; acidity; catalyst ... See more keywords