Authors:
Jinbo Ni Southeast University School of Chemistry and Chemical Engineering Nanjing 211189 People’s Republic of China

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Min Wu Southeast University School of Chemistry and Chemical Engineering Nanjing 211189 People’s Republic of China

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Zhaohui Yang Xin Anjiang Vocation School Hangzhou 311600 People’s Republic of China

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Changfei Bu Southeast University School of Chemistry and Chemical Engineering Nanjing 211189 People’s Republic of China

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Qin He Southeast University School of Chemistry and Chemical Engineering Nanjing 211189 People’s Republic of China

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Abstract  

SO42−/TiO2–MxOy (M = Zr, Ce, La) were prepared by the precipitation-impregnation method and characterized by X-ray powder diffraction (XRD), Fourier transform infrared (FT-IR), and temperature-programmed desorption (NH3-TPD). Catalytic activities were evaluated in the acetalization of 1,3-propanediol (1,3-PD) with acetaldehyde and hydrolysis of 2-methyl-1,3-dioxane (2MD). SO42−/TiO2–ZrO2 (STZ) exhibited the best catalytic activity both in the acetalization and hydrolysis. With the molar ratio of Zr4+/Ti4+ = 1:4, the highest yields were 96.45% in 3 h and 93.68% of 2MD hydrolyzed in 18 h, in contrast to the yields lower than 60% by using other superacids. These results are consistent with the strongest acidity of the superacid containing Zr4+ among prepared superacids containing other cations.

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Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation
1974
Volumes
per Year
1
Issues
per Year
6
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)