ALKALI DECOMPOSITION METHOD FOR HALOGENATED AROMATIC COMPOUND

Japanese Patent JP3247543

B2

PURPOSE: To decompose a halogenated aromatic compound into such concentration as incapable of being substantially detected, by keeping the ratio of alkali in a system at an initiating time equal to or above a specific value, when the aromatic compound is kept in contact with the alkali in an aprotic polar solvent for the prescribed time at the preset temperature.
CONSTITUTION: In this alkali decomposition method for a halogenated aromatic compound, the ratio of alkali in a system at an initiating time is kept at 5,000mg/kg or more, when the compound and alkali are kept in contact with each other in an aprotic polar solvent for 1 to 10 hours at a temperature between 150 to 300°C. When this method is used for decomposing alkali, a halogenated aromatic compound regarded as causing a problem on environmental protection or directly damaging a human body, even if small in an initiating substance, can be decomposed into such concentration as incapable of being substantially detected over a wide dilution range from 100% to several mg/kg.

Fumio Tanimoto
Ninety-nine Kiyohiko
Mitsuhiko Nakamura
Tsuneo Yano
Nobuhiro Suzuki
Toshiaki Toma
Kouichi Furuhashi
Nobuyuki Nakayama

JP12169094A

January 15, 2002

April 22, 1994

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Institute for Industrial Development Science
Mitsui & Co., Ltd.
THE TOKYO ELECTRIC POWER COMPANY,INCORPORATED
Neos Co., Ltd.

A62D3/36; C07B35/06; C10G19/00; A62D101/22; (IPC1-7): C07B35/06; A62D3/00

JP625691A
JP49126651A
JP78572A
JP58500200A
JP8511766A

【文献】米国特許4910353(US,A)

Yoshio Mizuno

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