Title:
ALKALI DECOMPOSITION OF HALOGENATED AROMATIC COMPOUNDS
Document Type and Number:
Japanese Patent JP3418845
Kind Code:
B2
Abstract:
PURPOSE: To make halogenated aromatic compounds possible to be reduced lower than the detection limit by using an alkali substance in concentration higher than a designated level and coexisting a specific cyclic nitrogen compound when the halogenated aromatic compounds are brought into contact with the alkali substance in non-proton polar solvent.
CONSTITUTION: When a halogenated aromatic compound is brought into contact with an alkali substance for 1-10hr under a temperature of 150-200°C in non- proton polar solvent, the ratio of alkali substance in the system is made 3000mg/kg or higher in the beginning, under coexistence of a cyclic nitrogen compound, if necessary. The halogenated aromatic compound is diluted with hydrocarbon oil of which main component is non-aromatic hydrocarbon in a range from 2mg/kg to 80%. Sodium hydroxide, potassium hydroxide, calcium hydroxide, etc., are used as an alkali substance, and quinoline, quinoxaline, ethylene urea, melamine, etc., are used as a cyclic nitrogen compound.
Inventors:
Fumio Tanimoto
Ninety-nine Kiyohiko
Tsuneo Yano
Ninety-nine Kiyohiko
Tsuneo Yano
Application Number:
JP14215994A
Publication Date:
June 23, 2003
Filing Date:
May 20, 1994
Export Citation:
Assignee:
Institute for Industrial Development Science
International Classes:
A62D3/36; C07B35/06; C10M177/00; A62D101/22; (IPC1-7): C07B35/06; A62D3/00; C10M177/00
Domestic Patent References:
| JP625691A | ||||
| JP7289656A | ||||
| JP78572A | ||||
| JP60114278A | ||||
| JP4500476A |
Other References:
【文献】米国特許4910353(US,A)
【文献】米国特許5304702(US,A)
【文献】米国特許5304702(US,A)
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