Process for the degradation of highly toxic halogenated organic

Details Process for the degradation of highly toxic halogenated organic Process for the degradation of highly toxic halogenated organic

1994-02-18

1995-10-31

Lander, Ferris

Hazardous or toxic waste destruction or containment

Containment

Solidification, vitrification, or cementation

423240S, 423240R, B01D 5370

Patent

active

054631700

ABSTRACT:
Disclosed is a process for the degradation of highly toxic halogenated organic compounds, in particular polychlorinated dibenzodioxins (PCDD) and dibenzofurans (PCDF), contained in gases containing no SO.sub.2 by oxidation using preferably hydrogen peroxide. The SO.sub.2 -free gas is passed, in the presence of hydrogen peroxide, over a substantially inorganic solid contact catalyst, in particular pyrogenic or precipitated silica or aluminum silicate. A residual PCDD/PCDF content of below 0.1 ng TE/Nm.sup.3 may be achieved in the thus treated gas; the highly toxic compounds are oxidized on the solid contact catalyst.

REFERENCES:
patent: 3989807 (1976-11-01), Johnston
patent: 4485081 (1984-11-01), Magistro
patent: 4780287 (1988-10-01), Zeff et al.
Holleman, A. F., et al., "Lehrbuch Der Anorganischen Chemie", Berlin 1964, p. 180 (no month).

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