Polyoxymethylene dimethyl ethers synthesis from methanol and formaldehyde solution over one-pot synthesized spherical mesoporous sulfated zirconia

2021 ◽  
Author(s):  
Xiangjun Li ◽  
Shujun Li ◽  
Xiaoping Wang ◽  
Muhammad Asif Nawaz ◽  
Dianhua Liu
Keyword(s):  
Sulfated Zirconia ◽  
Formaldehyde Solution ◽  
One Pot ◽  
Polyoxymethylene Dimethyl Ethers

One-pot sol-gel synthesis of sulfated ZrO2-SiO2 catalysts for alcohol dehydration

2001 ◽  
Vol 79 (8) ◽  
pp. 1220-1223 ◽  
Author(s):  
Quan Zhuang ◽  
Jack M Miller
Keyword(s):  
Ammonium Sulfate ◽  
Sulfated Zirconia ◽  
Sol Gel ◽  
Synthesis Method ◽  
Acid Catalyst ◽  
Alcohol Dehydration ◽  
One Pot ◽  
Zirconium Propoxide ◽  
The One ◽  
Sol Gel Synthesis

Sulfated ZrO2–SiO2 catalysts were synthesized by one-pot sol-gel method using ammonium sulfate, zirconium propoxide, and tetraethyl orthosilicate as precursors. The catalysts were characterized by N2 adsorption and DRIFTS. On calcining the gel at elevated temperature, the ammonium sulfate decomposed, giving a sulfated zirconia–silica catalyst. By adding ammonium sulfate to the sol-gel synthesis system, the surface area, pore size, and pore volume of the resultant catalyst were increased. The one-pot sol-gel synthesized catalyst with an optimum loading of SO42– 14 mol% showed significantly higher catalytic activity, with a selectivity of 100%, for isopropanol dehydration when compared to the impregnated catalyst. The one-pot sol-gel synthesis method is an effective way to prepare sulfated zirconia catalyst.Key words: sulfated zirconia, sol-gel synthesis, acid catalyst, alcohol dehydration, N2 adsorption, DRIFT.

scholarly journals Sulfated zirconia as an efficient heterogeneous and reusable catalyst for one pot synthesis of flavanones

2014 ◽  
Vol 18 (5) ◽  
pp. 464-468 ◽  
Author(s):  
Bashir A. Dar ◽  
Nisar Ahmad ◽  
Jyoti Patial ◽  
Parveen Sharma ◽  
Kushal Bindu ◽  
...  
Keyword(s):  
Sulfated Zirconia ◽  
Reusable Catalyst ◽  
One Pot ◽  
One Pot Synthesis

Nano magnetic sulfated zirconia (Fe3O4@ZrO2/SO42−): an efficient solid acid catalyst for the green synthesis of α-aminonitriles and imines

2015 ◽  
Vol 39 (6) ◽  
pp. 4821-4829 ◽  
Author(s):  
Hossein Ghafuri ◽  
Afsaneh Rashidizadeh ◽  
Behnaz Ghorbani ◽  
Majid Talebi
Keyword(s):  
Green Synthesis ◽  
Sulfated Zirconia ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
One Pot ◽  
Nano Catalyst ◽  
The One

In this research, nano magnetic sulfated zirconia was prepared through a green and facile method and acted as a novel, heterogeneous, efficient nano-catalyst for the one-pot three component synthesis of α-aminonitrile derivatives.

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