Kurita Water Industries Ltd.

Mitsuhiro Mashiko

Noboru Fujiwara

Naoaki Fujiyoshi

Hirofumi Izumikawa

A method for decomposing and eliminating dioxins contained in flyash at a lower temperature and in a shorter time is provided, in which dioxides or dioxins-containing materials are brought into contact with amine compounds and/or ammonium compounds at a temperature lower than 300 &deg; C. Chlorine in dioxines reacts with amine compounds and/or ammonium compounds and thus the dechlorination or replacement reaction of dioxin quickly proceeds under lower temperature. The method makes it possible to decompose dioxins under low temperature range in which dioxins have been thought to be undecomposable.

Growing community of inventors

Tokyo, Japan

Mitsuhiro Mashiko