fulltext.study @t Gmail

Esterification of lactic acid over TiO2–Al2O3 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
40898 45869 2012 5 PDF Available
Title
Esterification of lactic acid over TiO2–Al2O3 catalysts
Abstract

N-butyl lactate was synthesized with a good yield (the maximum product yield was 95.7% at 140 °C) by the reaction between lactic acid and n-butanol over TiO2–Al2O3 catalysts. These catalysts had various Ti/Al atomic ratios (ratio = 1/0, 9/1, 3/1, 1/1, 1/3, 1/9, and 0/1) and were prepared by a co-precipitation method. XRD, n-butylamine adsorption, nitrogen adsorption, and SEM were used to characterize the oxides. The maximum activity was found for the catalyst with Ti/Al atomic ratio = 1 (TA11). The superiority of TA11 was ascribed to its largest surface area and its maximum acidity. Under identical reaction conditions, TA11 catalyst exhibited significantly better activity than the TiO2–ZrO2 catalysts reported earlier, which should be due to the larger surface area of the former.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (119 K)Download as PowerPoint slideHighlights► Binary oxide with a Ti/Al atomic ratio of 1/1 (TA11) had the best activity. ► TA11 catalyst had the largest surface area and maximum acidity. ► TA11 catalyst had higher ester yield than cation-exchanged resins and Ti–Zr catalysts.

Keywords
Solid acid catalysts; Lactic acid esterification; TiO2–Al2O3 catalysts; Acid sites
First Page Preview
Esterification of lactic acid over TiO2–Al2O3 catalysts
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 433–434, 8 August 2012, Pages 275–279
Authors
, ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us