ANNA RASPOLLI

Prof. ANNA RASPOLLI

University of Pisa
orcid

Research Focus & Metrics

Academic Career Length

43Years (1984-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 January 2012 in Green Chemistry
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Journal Article
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ANNA RASPOLLIANNA RASPOLLI
ANNA RASPOLLI
CAClaudia Antonetti
Claudia Antonetti
VLValentina De Luise
Valentina De Luise
MMMarco Martinelli
Marco Martinelli
A sustainable process for the hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) is reported. GVL can be easily obtained in high yield, adopting very mild reaction conditions, by the hydrogenation of an aqueous solution of levulinic acid using a commercial ruthenium supported catalyst in combination with a heterogeneous acid co-catalyst, such as the ion exchange resins Amberlyst A70 or A15, niobium phosphate, or oxide. All the hydrogenations were carried out at 70–50 °C and at low hydrogen pressure (3–0.5 MPa). The most effective acid co-catalyst was the ion exchange resin Amberlyst A70, which produced a high yield of GVL (99 mol%) and an activity of 558 h−1 after 3 h of reaction, whilst working at 0.5 MPa of hydrogen and 70 °C. The combined effect of acid and hydrogenating heterogeneous components was also verified for the hydrogenation of aliphatic ketones to the corresponding alcohols, thus opening a new perspective for this process.

6 December 2016 in Catalysts
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Journal Article
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Claudia AntonettiClaudia Antonetti
Claudia Antonetti
Domenico LicursiDomenico Licursi
Domenico Licursi
Sara FulignatiSara Fulignati
Sara Fulignati
GVGiorgio Valentini
Giorgio Valentini
ANNA RASPOLLIANNA RASPOLLI
ANNA RASPOLLI
Levulinic acid (LA) is one of the top bio-based platform molecules that can be converted into many valuable chemicals. It can be produced by acid catalysis from renewable resources, such as sugars, lignocellulosic biomass and waste materials, attractive candidates due to their abundance and environmentally benign nature. The LA transition from niche product to mass-produced chemical, however, requires its production from sustainable biomass feedstocks at low costs, adopting environment-friendly techniques. This review is an up-to-date discussion of the literature on the several catalytic systems that have been developed to produce LA from the different substrates. Special attention has been paid to the recent advancements on starting materials, moving from simple sugars to raw and waste biomasses. This aspect is of paramount importance from a sustainability point of view, transforming wastes needing to be disposed into starting materials for value-added products. This review also discusses the strategies to exploit the solid residues always obtained in the LA production processes, in order to attain a circular economy approach.

1 February 2000 in Journal of Molecular Catalysis A: Chemical
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Journal Article
Closed access
TATiziana Armaroli
Tiziana Armaroli
Guido BuscaGuido Busca
Guido Busca
CCCarlo Carlini
Carlo Carlini
MGMario Giuttari
Mario Giuttari
ANNA RASPOLLIANNA RASPOLLI
ANNA RASPOLLI
GSGlauco Sbrana
Glauco Sbrana

1 July 1999 in Applied Catalysis A: General
Verified
Journal Article
Closed access
CCCarlo Carlini
Carlo Carlini
MGMario Giuttari
Mario Giuttari
ANNA RASPOLLIANNA RASPOLLI
ANNA RASPOLLI
GSGlauco Sbrana
Glauco Sbrana
TATiziana Armaroli
Tiziana Armaroli
Guido BuscaGuido Busca
Guido Busca

1 August 2005 in Applied Catalysis A: General
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Journal Article
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CCCarlo Carlini
Carlo Carlini
PPPasquale Patrono
Pasquale Patrono
ANNA RASPOLLIANNA RASPOLLI
ANNA RASPOLLI
GSGlauco Sbrana
Glauco Sbrana
VZVitezslav Zima
Vitezslav Zima

1 November 2004 in Applied Catalysis A: General
Verified
Journal Article
Closed access
CCCarlo Carlini
Carlo Carlini
PPPasquale Patrono
Pasquale Patrono
ANNA RASPOLLIANNA RASPOLLI
ANNA RASPOLLI
GSGlauco Sbrana
Glauco Sbrana