Extraction of Polychlorinated Biphenyls (PCBs) and Dibenzyl Disulfide from Transformer Oils using Polar Aprotic Solvents andReductive Dehalogenation of Extracted PCBs
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F14%3A00429476" target="_blank" >RIV/67985858:_____/14:00429476 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Extraction of Polychlorinated Biphenyls (PCBs) and Dibenzyl Disulfide from Transformer Oils using Polar Aprotic Solvents andReductive Dehalogenation of Extracted PCBs
Original language description
Extractions of PCBs from mineral oils with polar aprotic solvents (PAS) acrylonitrile AC, dimethyl sulfoxide DMSO, dimethyl formamide DMF, N-methyl pyrrolidone NMP and propylene carbonate PC were performed in order to compare the extraction efficiencies.In a single-stage extraction performed at room temperature, the efficiencies ranged from the highest to the lowest as follows: NMP DMF DMSO PC AC. NMP exhibited the highest efficiency, around 70%. . Pyridine N-oxide was also used as a catalyst for interfacial mass transfer in an attempt to increase the efficiency of the extraction. NMP was evaluated as having the best chance to be used in industry. Vacuum distillation and reductive dechlorination catalyzed by microparticles of bimetallic catalyst (Pd/Fe, 0.3%wt Pd on grey cast iron) were the two methods used to isolate the extracted PCBs from the solvent. When borohydride was added to the reaction mixture (< 0.1M), the reaction rates were almost one order of magnitude higher. The influ
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the International Conference Protection and Restoration of the Environment XII
ISBN
978-960-88490-5-1
ISSN
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e-ISSN
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Number of pages
1
Pages from-to
604-609
Publisher name
Grafima Publ
Place of publication
Thessaloniki
Event location
Skiathos island
Event date
Jun 29, 2014
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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