EP 0553511 A1 19930804 - Method for the disposal of fluor- and cyanid containing residus.
Title (en)
Method for the disposal of fluor- and cyanid containing residus.
Title (de)
Verfahren zur Entsorgung von Reststoffen, die fluor- und cyanidhaltige Verbindungen enthalten.
Title (fr)
Méthode d'élimination des résidus contenant du fluor et du cyanure.
Publication
Application
Priority
DE 4201831 A 19920124
Abstract (en)
For converting water-soluble fluorine compounds into water-insoluble compounds, for decomposing the cyanides and for a low NOx emission, the residues are treated with addition of sulphates of calcium or magnesium in a two-stage fluidised bed at temperatures of 650-900 DEG C, the first stage being run under slightly reducing conditions and the second stage being run under oxidising conditions. <IMAGE>
Abstract (de)
Zur Umwandlung von wasserlöslichen Fluorverbindungen in wasserunlösliche Verbindungen, zur Zersetzung der Cyanide und einer geringen NOx-Emission werden die Reststoffe unter Zusatz von Sulfaten von Calcium oder Magnesium in einer zweistufigen Wirbelschicht bei Temperaturen von 650-900°C behandelt, wobei die erste Stufe unter leicht reduzierenden Bedingungen und die zweite Stufe oxidierend betrieben wird. <IMAGE>
IPC 1-7
IPC 8 full level
A62D 3/33 (2007.01); A62D 101/45 (2007.01); A62D 101/49 (2007.01)
CPC (source: EP)
A62D 3/33 (2013.01); A62D 2101/45 (2013.01); A62D 2101/49 (2013.01); A62D 2203/02 (2013.01); A62D 2203/10 (2013.01)
Citation (search report)
- [A] WO 8204036 A1 19821125 - MARTIN MARIETTA CORP [US]
- [A] DE 3640318 A1 19880609 - BOEHRINGER MANNHEIM GMBH [DE]
- [A] EP 0257893 A1 19880302 - ONTARIO INC 655901 [CA]
- [A] DE 3426913 A1 19860130 - ADSORPTIONSTECH LAB [DE]
- [A] GB 2198722 A 19880622 - COMALCO ALU
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0553511 A1 19930804; AU 3194193 A 19930729; AU 652881 B2 19940908; CA 2084710 A1 19930725; DE 4201831 A1 19930729
DOCDB simple family (application)
EP 92203736 A 19921203; AU 3194193 A 19930122; CA 2084710 A 19921207; DE 4201831 A 19920124