EP 0442088 A1 19910821 - Process for the oxidation of water insoluble organic compounds.
Title (en)
Process for the oxidation of water insoluble organic compounds.
Title (de)
Verfahren zur Oxidation wasserunlöslicher organischer Verbindungen.
Title (fr)
Procédé de l'oxidation de composés organiques/insolubles dans l'eau.
Publication
Application
Priority
DE 4001782 A 19900123
Abstract (en)
[origin: DE4001782A1] Oxidn. of organic pollutants contg. C, H, O and other elements in bound form is effected by reaction with NHO3 at 150-350 deg.C and 6-350 bar. The process is characterised in that water-insol. chlorinated hydrocarbons are oxidised (SiC). Pref. chlorinated dibenzodioxins and chlorinated dibenzofurnas are oxidised. In an examples, the substance oxidised is (a) a substance called chlophen, (b) 1,1-dichloroethane, or (c) chloranil contg. 15ppm octachlorodibenzo-p-dioxin and 1.2ppm octachlorodibenzofuran. The reaction is effected in an autoclave at 30-100 bar. The HNO3 is used in an amt. of 2-40 (esp. 2.5-7) g per g of pollutant. In an example, a mixt. of 30g chlophen and 910g of 20% HNO3 was heated in a Ta autoclave at 280 deg.C and 86 bar for 2 hr. After cooling, the prod. comprised a clear aq. phase and no oily phase. The aq. phase had a COD of 2.4g/l and contained no chlorinated dibenzo-p-dioxins or dibenzofurans. @(3pp Dwg.No.0/0).
Abstract (de)
Wasserunlösliche chlorierte Kohlenwasserstoffe können dadurch weitgehend abgebaut werden, daß sie mit Salpetersäure versetzt und bei Drucken von 6 bar bis 350 bar auf Temperaturen von 150° bis 350° C erhitzt werden.
IPC 1-7
IPC 8 full level
A62D 3/38 (2007.01); C07B 33/00 (2006.01); A62D 101/22 (2007.01); A62D 101/28 (2007.01)
CPC (source: EP US)
A62D 3/38 (2013.01 - EP US); A62D 2101/22 (2013.01 - EP US); A62D 2101/28 (2013.01 - EP US)
Citation (search report)
- [A] US 4080168 A 19780321 - ABU-SAMRA ADEL, et al
- [A] L. FRADKIN et al.: "Technologies for treatment, reuse, and disposal of polychlorinated, biphenyl wastes", Januar 1982, Teil 4.6, Seiten 17-19, National Technical Information Service, Springfield, VA, US; "Catalyzed wet oxidation"
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0442088 A1 19910821; EP 0442088 B1 19930421; AT E88368 T1 19930515; DE 4001782 A1 19910725; DE 59001261 D1 19930527; DK 0442088 T3 19930517; ES 2055284 T3 19940816; US 5174985 A 19921229
DOCDB simple family (application)
EP 90124224 A 19901214; AT 90124224 T 19901214; DE 4001782 A 19900123; DE 59001261 T 19901214; DK 90124224 T 19901214; ES 90124224 T 19901214; US 64210591 A 19910116