Hazardous or toxic waste destruction or containment – Containment – Solidification – vitrification – or cementation
Reexamination Certificate
2005-08-02
2005-08-02
Silverman, Stanley S. (Department: 1754)
Hazardous or toxic waste destruction or containment
Containment
Solidification, vitrification, or cementation
C423S24000R, C423S245100
Reexamination Certificate
active
06924408
ABSTRACT:
In a method for reducing the content of polychlorinated dibenzodioxins and -furans in the exhaust gas of chemical high temperature processes handling process materials, amides or organic oxides are made available to the process under the conditions under which the polychlorinated dibenzodioxins and -furans are generated, which amides comprise of at least one of the group consisting of amidosulfonic acid, hydroxyl amino sulfonic acid and sulfamid in an amount of 0.5 to 10% of the process material.
REFERENCES:
patent: 5113772 (1992-05-01), Karasek et al.
patent: 40 27 819 (1992-03-01), None
patent: 0 435 848 (1991-07-01), None
Kettrup Antonius
Lenoir Dieter
Samaras Petros
Schramm Karl-Werner
Bach Klaus J.
GSF Forshungszentnem für Umwelt und Gesundheit GmbH
Johnson Edward M.
Silverman Stanley S.
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