Process for environmentally safe destruction of pyrotechnic mate

Details Process for environmentally safe destruction of pyrotechnic mate Process for environmentally safe destruction of pyrotechnic mate

1993-06-28

1996-02-27

Mai, Ngoclan

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

110237, 110344, 110345, A62D 300

Patent

active

054950635

ABSTRACT:
In order to work up pyrotechnical material, I. the pyrotechnical material is burned in a controlled manner, the slag is optionally allowed to continue reacting and the crude gas formed is passed through a high-temperature region in which the gas is exposed to a temperature of at least 1200.degree. C. over a predetermined period in order to decompose organic substances still present; II. the crude gas formed during the combustion is cooled to a temperature below 400.degree. C.; III. the crude gas is purified under dry conditions by first feeding it into a preliminary separator, coarse particles being separated off, and then feeding the crude gas via fine dust filters in order to separate off finely divided solids and/or IV. the crude gas is optionally purified under wet conditions by first passing it through a rotary scrubber and then passing it via one or more absorption units and V. the purified gas is released as waste air.

REFERENCES:
patent: 3848548 (1974-11-01), Bolejack, Jr. et al.
patent: 3903814 (1975-09-01), Altekruse
patent: 3916805 (1975-11-01), Kalfadelis et al.
patent: 5129903 (1993-01-01), Abboud et al.
patent: 5207176 (1993-05-01), Morhard et al.
patent: 5331106 (1994-07-01), Spas

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