Global Patent Index - EP 0735321 B1

EP 0735321 B1 2000-04-12 - Process for purification of noxious exhaust gases by chemical conversion

Title (en)

Process for purification of noxious exhaust gases by chemical conversion

Title (de)

Verfahren zur Reinigung von schadstoffhaltigen Abgasen durch chemische Umsetzung

Title (fr)

Procédé pour la purification des effluents gazeux nocifs par conversion chimique


EP 0735321 B1 (DE)


EP 96102122 A


DE 19511644 A

Abstract (en)

[origin: EP0735321A2] The device cleans or purifies waste gas containing toxic substances esp. with fluoride carbonated water etc. The method uses chemical conversion in a combustion chamber with a burner for generating a burning gas flame. By spatial separation of the feeding in of gases of different combinations and quantities into the flame a flame region of reduced chemical strength is created. The gas to be cleaned is fed into this region. A strongly oxidised flame region is also formed. The gas is put into this region and then it is passed through the reduced region. The appts. for carrying out this method has a combustion chamber, a ring burner for the burning gas or gas mixture, and a central supply for the toxic waste gas into the burner. One or more inlet channels are arranged in the wall of the chamber near the burner to additionally feed in air or acid.

IPC 1-7 (main, further and additional classification)

F23G 7/06; F23G 5/14; F23J 15/04

IPC 8 full level (invention and additional information)

F23G 7/06 (2006.01)

CPC (invention and additional information)

F23G 7/065 (2013.01)

Citation (examination)

WO 8601131 A1 19860227 - AMERICAN COMBUSTION INC [US]

Designated contracting state (EPC)


DOCDB simple family

EP 0735321 A2 19961002; EP 0735321 A3 19970326; EP 0735321 B1 20000412; DE 19511644 A1 19961002