Electrochemical Treatment of Organohalogens in Process Waste Waters

Schmal, D.; Erkel, J. van; Jong, A. M. C. P. de; Duin, P.J. van

doi:10.1007/978-94-009-3663-8_33

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…The transformation of halogenated hydrocarbons into less harmful compounds is still a challenge in chemistry. Among the methods currently used industrially, electrochemical dehalogenation and decomposition by iron catalysts are well‐known processes 3,4. A recent discovery was that chlorinated and brominated hydrocarbons can be catalytically reduced under DOW‐phenol conditions,5 and this was confirmed in our investigation of the role of different apical donors on the DOW‐phenol process 6.…”

Section: Introductionsupporting

confidence: 65%

Catalytic Dehalogenation of Halogenated Pyridine Donors under DOW-Phenol Conditions

Buijs

Comba

Corneli

et al. 2001

Eur. J. Inorg. Chem.

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Various halogenated pyridines (2‐fluoropyridine, 2‐chloropyridine, 2‐bromopyridine, 3‐bromopyridine, 2,5‐dibromopyridine, and 3,5‐dibromopyridine) are subject to catalytic reduction and substitution under DOW‐phenol conditions; copper(I) benzoate is shown to play a key role in these processes. In the absence of copper(I), the halogenated pyridines do not react with benzoic acid, while after precipitation of copper(I) halide the dehalogenation process stops. Marked differences are observed between the copper(I)‐catalyzed dehalogenation of the halopyridines and the previously reported dehalogenation of halogenated aromatics. While the copper(I)‐catalyzed substitution of haloaryl compounds by benzoate makes only a minor contribution to the overall dehalogenation process, substitution of halopyridine compounds is at least as important as the reduction reaction. Furthermore, the reaction with halopyridine compounds is regioselective, in contrast to that with halogenated aryl compounds.

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Section: Introductionsupporting

confidence: 65%

Catalytic Dehalogenation of Halogenated Pyridine Donors under DOW-Phenol Conditions

Buijs

Comba

Corneli

et al. 2001

Eur. J. Inorg. Chem.

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“…Figure 9 shows current efficiency calculated using equation (13). Current efficiency exhibited an exponential decay over the electrolysis time.…”

Section: Ir O Dtmentioning

confidence: 99%

“…Zinc metal is chosen as the working electrode because of its high overpotential of hydrogen reduction. Propylene carbonate is selected as solvent because cathodic breakdown for this compound is known to occur typically at more negative potentials than water does [13,14]. This solvent is used to prevent the reduction of water from competing with PCP reduction.…”

Section: Introductionmentioning

confidence: 99%

Electrochemically reductive dechlorination of pentachlorophenol using a high overpotential zinc cathode

Lin

Tseng

1999

Chemosphere

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“…Dabei standen mechanistische Aspekte im Vordergrund des Interesses. Produktorientierte Arbeiten über die elektrochemische R eduktion von polychlorierten Benzolen und PCBs in proti schen Lösungsmitteln sind wenig bekannt [7].…”

unclassified

Notizen: Elektroreduktion organischer Verbindungen, XV [1] / Electroreduction of Organic Compounds, XV [1]

Petersen

Lemmrich

Altrogge

et al. 1990

Zeitschrift Für Naturforschung B

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Electroreduction, Chlorinated Benzenes and Biphenyls, D ehalogenationThe twelve possible chlorinated benzenes and the three isomeric m onochlorobiphenyls are electrochemically reduced in a divided cell in meth anol at a lead cathode. Chlorobenzene and ben zene or biphenyl, respectively, are formed with acceptable current yields and very good chemical yields. Die in Abb. 1 gezeigte Produktverteilung be zieht sich auf das 1,5-fache der theoretischen Gesamtladungsmenge. Die bei der R eduktion der Dichlorbenzolisomere beobachteten Verhältnisse der Produktverteilung bestätigen die in der Literatur Die bei industriellen

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Electrochemical Treatment of Organohalogens in Process Waste Waters

Cited by 5 publications

References 7 publications

Catalytic Dehalogenation of Halogenated Pyridine Donors under DOW-Phenol Conditions

Catalytic Dehalogenation of Halogenated Pyridine Donors under DOW-Phenol Conditions

Electrochemically reductive dechlorination of pentachlorophenol using a high overpotential zinc cathode

Notizen: Elektroreduktion organischer Verbindungen, XV [1] / Electroreduction of Organic Compounds, XV [1]

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