• RI - Unifesp
    • Documentos
    • Tutoriais
    • Perguntas frequentes
    • Atendimento
    • Equipe
    • português (Brasil)
    • English
    • español
  • Sobre
    • RI Unifesp
    • Documentos
    • Tutoriais
    • Perguntas frequentes
    • Atendimento
    • Equipe
  • English 
    • português (Brasil)
    • English
    • español
    • português (Brasil)
    • English
    • español
  • Login
View Item 
  •   DSpace Home
  • Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF)
  • ICAQF - Artigos
  • View Item
  •   DSpace Home
  • Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF)
  • ICAQF - Artigos
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Acetalization of acetone with glycerol catalyzed by niobium-aluminum mixed oxides synthesized by a sol-gel process

Thumbnail
Date
2016
Author
Rodrigues, Raphael
Mandelli, Dalmo
Goncalves, Norberto Sanches [UNIFESP]
Pescarmona, Paolo P.
Carvalho, Wagner A.
Type
Artigo
ISSN
1381-1169
Is part of
Journal Of Molecular Catalysis A-Chemical
DOI
10.1016/j.molcata.2016.02.002
Metadata
Show full item record
Abstract
Niobium-aluminum-based catalysts were synthesized by a sol-gel process and successfully applied to the reaction of acetalization of acetone with glycerol yielding 2,2-dimethyl-1,3-dioxolane-4-methanol (solketal) and 2,2-dimethyl-1,3-dioxan-5-ol. The synthesis procedure was developed using high throughput techniques and the materials prepared with molar ratio1 Metal (1Nb:xAl): 100H(2)O: 1.5NH(4)OH (in which x =1, 0.6, 0.3, 0.1 and 0.05) were selected to be further investigated. The obtained series of mixed oxides displayed high catalytic activity reaching glycerol conversion up to 84%, with 98% of selectivity towards solketal. The physicochemical properties of the investigated catalysts were characterized by N-2-adorption/desorption, thermal analysis, X-rays diffraction, FTIR and Raman spectroscopy, and by adsorption of pyridine monitored by FT-IR spectroscopy and TGA. The catalysts are truly heterogeneous and can be reused in consecutive runs without loss of activity. (C) 2016 Elsevier B.V. All rights reserved.
Citation
Journal Of Molecular Catalysis A-Chemical. Amsterdam, v. 422, p. 122-130, 2016.
Keywords
Niobium
Aluminum
Acetalization
Solketal
Glycerol
Sponsorship
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
FWO
START1 (KU Leuven)
URI
https://repositorio.unifesp.br/handle/11600/57025
Collections
  • ICAQF - Artigos [1140]

DSpace software copyright © 2002-2016  DuraSpace
Contact Us
Theme by 
Atmire NV
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsBy Submit DateThis CollectionBy Issue DateAuthorsTitlesSubjectsBy Submit Date

My Account

Login

Statistics

View Usage Statistics

DSpace software copyright © 2002-2016  DuraSpace
Contact Us
Theme by 
Atmire NV