Puga, AV.; Corma Canós, A. (2014). Efficient production and separation of biodegradable surfactants from cellulose in 1-butyl-3-methylimidazolium chloride. ChemSusChem. 7(12):3362-3373. https://doi.org/10.1002/cssc.201402722
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/61531
Title:
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Efficient production and separation of biodegradable surfactants from cellulose in 1-butyl-3-methylimidazolium chloride
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Author:
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Puga, Alberto V.
Corma Canós, Avelino
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
Universitat Politècnica de València. Departamento de Química - Departament de Química
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Issued date:
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Abstract:
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[EN] Alkyl glycoside biodegradable surfactants were produced from cellulose and 1-octanol or 1-dodecanol in a one-pot, two-step (hydrolysis-glycosidation) process in 1-butyl-3-methylimidazolium chloride. Both surfactant ...[+]
[EN] Alkyl glycoside biodegradable surfactants were produced from cellulose and 1-octanol or 1-dodecanol in a one-pot, two-step (hydrolysis-glycosidation) process in 1-butyl-3-methylimidazolium chloride. Both surfactant productivity and separation efficiencies have been strikingly enhanced compared to other previously reported ionic liquid processes. Production temperatures were decreased to limit the extent of glucose dehydration and further degradation processes, but the conversions remained high. Surfactant molar yields up to 72% were achieved by operating at 70°C. Several separation procedures were tested to achieve high recoveries of both surfactant and ionic liquid. The use of a silica stationary phase was useful for isolation of the surfactant, whereas crystallization of the ionic liquid improved its separation efficiency. Finally, the precipitation of dodecyl glycosides in aqueous media was highly efficient for their isolation and for the recovery (> 99 %) of the ionic liquid by using only water as the solvent for separation.
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Subjects:
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Biomass
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Cellulose
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Ionic liquids
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Separation
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Surfactants
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Copyrigths:
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Cerrado |
Source:
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ChemSusChem. (issn:
1864-5631
) (eissn:
1864-564X
)
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DOI:
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10.1002/cssc.201402722
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Publisher:
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Wiley-VCH Verlag
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Publisher version:
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http://dx.doi.org/10.1002/cssc.201402722
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Project ID:
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info:eu-repo/grantAgreement/MINECO//CTQ2012-32315/ES/REDUCCION FOTOCATALITICA DEL DIOXIDO DE CARBONO/
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Thanks:
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Financial support by the Spanish Ministry of Economy and Competitiveness (Severo Ochoa and CTQ2012-32315) is gratefully acknowledged. A.V.P. is grateful to both the Consejo Superior de Investigaciones Cientificas (CSIC) ...[+]
Financial support by the Spanish Ministry of Economy and Competitiveness (Severo Ochoa and CTQ2012-32315) is gratefully acknowledged. A.V.P. is grateful to both the Consejo Superior de Investigaciones Cientificas (CSIC) and the European Social Fund (ESF) for a JAE-Doc postdoctoral grant.
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Type:
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Artículo
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