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Wet oxidation of acetic acid by H2O2 catalyzed by transition metal-exchanged NaY zeolites
Journal of chemical technology and biotechnology (1986), 1998-10, Vol.73 (2), p.127-130
Larachi, F.
Lévesque, S.
Sayari, A.
1998
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Larachi, F.
Lévesque, S.
Sayari, A.
Titel
Wet oxidation of acetic acid by H2O2 catalyzed by transition metal-exchanged NaY zeolites
Ist Teil von
Journal of chemical technology and biotechnology (1986), 1998-10, Vol.73 (2), p.127-130
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
1998
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
During the wet oxidation of contaminated wastewaters, the destruction of low molecular weight carboxylic acid intermediates such as acetic, glyoxalic, and oxalic acids is often the rate‐controlling step. Oxidation of acetic acid, a very recalcitrant intermediate, requires compelling treatment severity. Heterogeneous catalytic wet oxidation of model acetic acid aqueous solutions was conducted under mild conditions (below the normal boiling point of water) using hydrogen peroxide over various transition metal‐exchanged NaY zeolites. Treatment of Cu2+–NaY with oxalic acid [OA] led to a catalyst, Cu2+–NaY [OA], with significantly improved properties in terms of total organic carbon (TOC) removal efficiency and catalyst stability against leaching. This catalyst outperformed homogeneous Cu2+ by a factor of 2–2·5 times. Continuous feeding of H2O2 reduced its undesirable decomposition. Improvement of the TOC‐degradation performance by Cu2+–NaY [OA] was tentatively attributed to the removal of sodium and possibly aluminium in the zeolite. © 1998 Society of Chemical Industry
Sprache
Englisch
Identifikatoren
ISSN: 0268-2575
eISSN: 1097-4660
DOI: 10.1002/(SICI)1097-4660(1998100)73:2<127::AID-JCTB941>3.0.CO;2-T
Titel-ID: cdi_proquest_miscellaneous_13611843
Format
–
Schlagworte
acetic acid
,
Applied sciences
,
Catalysis
,
Catalysts: preparations and properties
,
catalytic wet oxidation
,
Chemistry
,
Exact sciences and technology
,
General and physical chemistry
,
General purification processes
,
hydrogen peroxide
,
metal-exchanged NaY zeolite catalyst
,
Pollution
,
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
,
Wastewaters
,
Water treatment and pollution
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