Zirconium doped MCM-41 supported WO3 solid acid catalysts for the esterification of oleic acid with methanol

2010 ◽  
Vol 379 (1-2) ◽  
pp. 61-68 ◽  
Author(s):  
I. Jiménez-Morales ◽  
J. Santamaría-González ◽  
P. Maireles-Torres ◽  
A. Jiménez-López
Keyword(s):  
Oleic Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Mcm 41

scholarly journals Lignin-Derived Carbon Fibers as Efficient Heterogeneous Solid Acid Catalysts for Esterification of Oleic Acid

MRS Advances ◽  
2018 ◽  
Vol 3 (47-48) ◽  
pp. 2865-2873 ◽  
Author(s):  
Shiba Adhikari ◽  
Zach Hood ◽  
Nidia Gallego ◽  
Cristian Contescu
Keyword(s):  
Oleic Acid ◽  
Carbon Fiber ◽  
Solid Acid ◽  
Solid Acid Catalyst ◽  
Acid Catalyst ◽  
Significant Loss ◽  
Solid Acid Catalysts ◽  
Molar Ratio ◽  
Acid Catalysts ◽  
Oleic Acid Content

The production of biodiesel by the esterification of oleic acid, as an example of free fatty acid (FFA), was explored by using a new solid acid catalyst derived from lignin, a highly abundant low-cost biomass material. The catalyst was synthesized from lignin-derived carbon fiber by straightforward sulfonation and contains 1.86 mmol/g of sulfonic acid (-SO3H) groups. The catalyst was characterized by a variety of techniques including PXRD, TGA, TPD-MS, SEM, and XPS to understand the surface chemistry and the result of sulfonation. It was found that the sulfonated lignin-derived carbon fiber (CF-SO3H) catalyst was very efficient at esterifying oleic acid at 80 oC in 4 hours, with 10 wt. % catalyst (in terms of oleic acid content) and at a 10:1 molar ratio of methanol: oleic acid with a yield of 92%. Furthermore, the catalyst can be reused with no significant loss in activity after 4 cycles. Hence, synthesizing solid acid catalysts from lignin-derived carbon fiber affords a novel strategy for producing biodiesel via ‘green chemistry’.

Synthesis and Characterisation of Ordered Mesoporous Acid Catalysts for Synthesis of Biodegradable Surfactants

2003 ◽  
Vol 68 (10) ◽  
pp. 1914-1926 ◽  
Author(s):  
Marcelo Boveri ◽  
Javier Agúndez ◽  
Isabel Díaz ◽  
Joaquín Pérez-Pariente ◽  
Enrique Sastre
Keyword(s):  
Catalytic Activity ◽  
Hydrothermal Synthesis ◽  
Stearic Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Synthesis Time ◽  
Ordered Mesoporous ◽  
Glycerol Esterification ◽  
Mcm 41

Solid acid catalysts based on -SO3H-grafted MCM-41 mesoporous silica were prepared as catalysts for the synthesis of biodegradable surfactants leading reactions. The influence of hydrothermal synthesis time on properties of the mesoporous matrix and catalytic activity and selectivity of the catalysts in the stearic acid-glycerol esterification were studied.

scholarly journals Green Synthesis of Benzylated Aromatics Using Iron Loaded Mesoporous Materials

2008 ◽  
Vol 5 (3) ◽  
pp. 467-472 ◽  
Author(s):  
Muthuraj Esther Leena Preethi ◽  
Shanmugam Revathi ◽  
Thiripuranthagan Sivakumar
Keyword(s):  
Green Synthesis ◽  
Mesoporous Materials ◽  
Solid Acid ◽  
Catalytic Amount ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Mcm 41

Syntheses of benzylated aromatics like diphenylmethane and its derivatives by the condensation of benzene or toluene oro-xylene with benzylchloride or 4-methylbenzylchloride in the presence of a catalytic amount of various iron loaded mesoporous solid acid catalysts such as Fe/Al-MCM-41 (Si/Al=25), Fe/Al-MCM-41 (Si/Al=50) and Fe/Al-MCM-41 (Si/Al=100) are reported.

Efficient carbon-based solid acid catalysts for the esterification of oleic acid

2011 ◽  
Vol 13 (1) ◽  
pp. 26-30 ◽  
Author(s):  
Liang Geng ◽  
Yu Wang ◽  
Gang Yu ◽  
Yuexiang Zhu
Keyword(s):  
Oleic Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Carbon Based

Development of highly efficient solid acid catalysts supported on mesoporous KIT-6 for esterification of oleic acid

2021 ◽  
Author(s):  
Usama Shakeel ◽  
Murid Hussain ◽  
Rizwan Sheikh ◽  
Ashfaq Ahmed ◽  
Muhammad Shahid Nazir ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts ◽  
Highly Efficient

scholarly journals Esterification of oleic acid over solid acid catalysts prepared from Amazon flint kaolin

2011 ◽  
Vol 101 (3-4) ◽  
pp. 495-503 ◽  
Author(s):  
Luís Adriano S. do Nascimento ◽  
Laura M.Z. Tito ◽  
Rômulo S. Angélica ◽  
Carlos E.F. da Costa ◽  
José R. Zamian ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Solid Acid ◽  
Solid Acid Catalysts ◽  
Acid Catalysts
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