Method of dechlorinating organic chlorine compound

Method of dechlorinating organic chlorine compound

In order to treat organic chlorine compounds, which are generally hard to decompose, by a method, which poses no problem in terms of processes and is excellent in safety and economy, excess alkali is used to make the treating complete when a PCB containing insulating oil (9) containing organic chlor...

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Bibliographische Detailangaben
Hauptverfasser: TSUNEO YANO, FUMIO TANIMOTO, TOSHINORI TOMA, MITOSHI HIGASHIUCHI, ATSUHIKO NAKAMURA, KIYOHIKO TSUKUMO, KOICHI FURUHASHI
Format: Patent
Sprache:eng
Schlagworte:
APPARATUS THEREFOR
CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
DISPOSAL OF SOLID WASTE
FIRE-FIGHTING
GENERAL METHODS OF ORGANIC CHEMISTRY
HUMAN NECESSITIES
LIFE-SAVING
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
RECLAMATION OF CONTAMINED SOIL SOIL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Beschreibung
Zusammenfassung:In order to treat organic chlorine compounds, which are generally hard to decompose, by a method, which poses no problem in terms of processes and is excellent in safety and economy, excess alkali is used to make the treating complete when a PCB containing insulating oil (9) containing organic chlorine compounds such as PCB, and alkali such as caustic soda (2), are caused to react in an aprotic polar solvent such as 1,3-dimethyl-imidazolidinone (1) to undergo dechlorination. Further, excess alkali is made to be dissolved in a lower alcohol such as ethanol (17) and recovered, and the aprotic polar solvent is recovered, whereby a treating step is improved in safety, economy and serviceability, and the oil having been made harmless is reused for fuel oils and the like to make effective use of resources.