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Biolubricant Production from Stearic Acid and Residual Secondary Alcohols: System and Reaction Design for Lipase-Catalyzed Batch and Continuous Processes
(Springer, 2021-05-19)
Six lipases were immobilized on a styrene-divinylbenzene support and evaluated on the batch esterification reaction of stearic acid with fusel oil. After a screening design, the two most appropriate lipases were assayed ...
Acid and base catalysts in the hybrid silica sol-gel process
(Academic Press IncSan DiegoEUA, 1997)
Preparation of bifunctional mesoporous silica nanoparticles by orthogonal click reactions and their application in cooperative catalysis
(Wiley-VCH VerlagWeinheim, 2012-12)
The synthesis of bifunctional mesoporous silica nanoparticles is described. Two chemically orthogonal functionalities are incorporated into mesoporous silica by co-condensation of tetraethoxysilane with two orthogonally ...
Sensibilidad Paramétrica y Condiciones Seguras de Operación de la Hidrólisis del Anhídrido Acético en un Reactor Batch
(Centro de Informacion Tecnologica, 2016-01-01)
The results of a study on the parametric sensitivity of acetic acid production by hydrolysis of acetic anhydride, using acid homogeneous catalysis in a batch reactor, are presented. Dimensionless parameters of mass and ...
Solvent free esterification reactions using Lewis acids in solid phase catalysis
(Elsevier B.V., 2006-10-04)
A clean, efficient and fast method for esterification reactions for sterically (biodiesels) or otherwise inactive (aromatic) precursors was developed, using catalysts supported in a solid phase under solvent free conditions, ...
Solvent free esterification reactions using Lewis acids in solid phase catalysis
(Elsevier B.V., 2006-10-04)
A clean, efficient and fast method for esterification reactions for sterically (biodiesels) or otherwise inactive (aromatic) precursors was developed, using catalysts supported in a solid phase under solvent free conditions, ...
Recent Advances in Using Niobium Compounds as Catalysts in Organic Chemistry
(Bentham Science Publ Ltd, 2015-01-01)
Niobium is not found in nature in its free form, but usually in the form of oxides and usually with the tantalum element. The largest niobium reserves are in Brazil. The use of niobium compounds in organic synthesis has ...
The role of HBF(4) in electro-catalysis: Arsenic contamination and anion adsorption
(ELSEVIER SCIENCE SA, 2011)
We present in this work a comprehensive investigation of the role played by dissolved tetrafluoroboric acid on the electrochemical response of a polycrystalline platinum electrode in acidic media. HBF(4) from two different ...
Synthesis, acid properties and catalysis by niobium oxide nanostructured materials
(Royal Society of Chemistry, 2014-04)
Several forms of niobium oxide were prepared, including nanostructured mesoporous materials, and their acidity properties were comprehensively investigated and compared with commercially available materials. The composites ...