Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Valter L.C. Gonçalves"'
Autor:
Jhon E. Mellizo, Ana Maria Rocco, José Carlos Souza Fadigas, Rossano Gambetta, Valter L.C. Gonçalves, Claudio J. A. Mota
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 422:158-164
The hydrogenolysis of glycerol, a byproduct of biodiesel production, to propene was studied over supported metallic catalysts. About 100% glycerol conversion was observed for all catalysts, but the selectivity was dependent on the composition. Ru and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63b5c725c4eba4aab9036b39ddf45ac2
https://doi.org/10.1016/j.molcata.2015.11.014
https://doi.org/10.1016/j.molcata.2015.11.014
Publikováno v:
Bioresource Technology. 101:6225-6229
Glycerol acetals from butanal, pentanal, hexanal, octanal and decanal were prepared with the use of Amberlyst-15 acid resin as catalyst. The glycerol conversion decreases with the size of the hydrocarbon chain. This fact has been associated with form
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c7cdfe06f40f205d1ebf44d93998b82
https://doi.org/10.1016/j.biortech.2010.02.101
https://doi.org/10.1016/j.biortech.2010.02.101
Publikováno v:
Catalysis Communications. 11:1036-1039
We studied the acetylation of glycerol with acetic anhydride using different solid acid catalysts. The results indicated that at 60 °C, zeolite Beta and K-10 Montmorillonite showed 100% selectivity to triacetin within 20 min, with a molar ratio of 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a7750b4adad336c57b49a84e0b50fc7
https://doi.org/10.1016/j.catcom.2010.05.007
https://doi.org/10.1016/j.catcom.2010.05.007
Publikováno v:
Green Chem.. 11:38-41
We studied the acid-catalysed reaction of glycerol with aqueous formaldehyde and acetone in absence of solvents and using heterogeneous catalysts. The reactivity of acetone was usually higher than formaldehyde and the glycerol conversion was over 90%
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b557212528a22a9f22afb0cf8563f6af
https://doi.org/10.1039/b813564a
https://doi.org/10.1039/b813564a
Publikováno v:
Journal of the Brazilian Chemical Society v.20 n.2 2009
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 20, Issue: 2, Pages: 201-204, Published: 2009
Journal of the Brazilian Chemical Society
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Journal of the Brazilian Chemical Society, Volume: 20, Issue: 2, Pages: 201-204, Published: 2009
In this work we present the results of glycerol etherification with benzyl alcohol, catalyzed by different solid acids. The mono-benzyl-glycerol ether was the main product in the reactions catalyzed by β zeolite and Amberlyst-35 acid resin, whereas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::683797b213c9ad95d91eab3a9ac33007
https://doi.org/10.1590/s0103-50532009000200002
https://doi.org/10.1590/s0103-50532009000200002
Publikováno v:
Catalysis Today. :673-677
This work describes the acetylation of glycerol with acetic acid catalyzed by different solid acids. Reactions were carried out in batch mode under reflux. The kinetics of glycerol transformation and selectivity to the products, notably mono, di and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::449c407de45ba24e367514e861bf5571
https://doi.org/10.1016/j.cattod.2007.12.037
https://doi.org/10.1016/j.cattod.2007.12.037
Publikováno v:
Journal of Catalysis. 248:158-164
The acid strength of solid acid materials can be assessed using the linear free energy relationship, applying the Hammett–Brown equation ( log k X / k H = ρ σ + ) for the H/D exchange with substituted benzenes. The magnitude of the ρ varies for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3306a07e3314104b3dcd0988ae284d5
https://doi.org/10.1016/j.jcat.2007.03.012
https://doi.org/10.1016/j.jcat.2007.03.012
Publikováno v:
Química Nova v.32 n.3 2009
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 32, Issue: 3, Pages: 639-648, Published: 2009
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Volume: 32, Issue: 3, Pages: 639-648, Published: 2009
Glycerol is a byproduct of biodiesel production through transesterification of oils and fat. This article discusses the chemical transformation of glycerol in ethers, acetals and esters of high technological applications, especially in the fuel secto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f26be713f2b5bef4eea25b8173f7b48
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000300008
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000300008
