EP 4087673 A1 20221116 - SYSTEM FOR CHEMICAL DECONTAMINATION OF CORROSIVE GASES
Title (en)
SYSTEM FOR CHEMICAL DECONTAMINATION OF CORROSIVE GASES
Title (de)
SYSTEM ZUR CHEMISCHEN DEKONTAMINATION VON KORROSIVEN GASEN
Title (fr)
SYSTÈME DE DÉCONTAMINATION CHIMIQUE DE GAZ CORROSIFS
Publication
Application
Priority
- FR 2000212 A 20200110
- FR 2021050029 W 20210108
Abstract (en)
[origin: WO2021140304A1] The present invention relates to the use of a composition comprising at least one acid-base neutralising agent in order to decontaminate an atmosphere contaminated by a corrosive gas, the acid-base neutralising agent having a pKa of at least 2 and being characterised in that: - pKa1 ≤ pKa2 - pKa1 > 2 - pKa2 < 12 - 4 < ½(pKa1 + pKa2) < 10, pKa1 representing the lowest base pKa and pKa2 representing the highest acid pKa. The present invention also relates to a method for decontaminating an atmosphere contaminated by a corrosive gas, which method comprises spraying the neutralising agent, and to a decontamination device.
IPC 8 full level
B01D 53/14 (2006.01); B01D 53/48 (2006.01); B01D 53/78 (2006.01); B01D 53/81 (2006.01)
CPC (source: EP US)
B01D 53/06 (2013.01 - US); B01D 53/1456 (2013.01 - EP); B01D 53/1493 (2013.01 - EP); B01D 53/48 (2013.01 - EP); B01D 53/58 (2013.01 - US); B01D 53/68 (2013.01 - US); B01D 53/78 (2013.01 - EP US); B01D 53/81 (2013.01 - EP US); B01D 2251/304 (2013.01 - EP US); B01D 2251/606 (2013.01 - EP); B01D 2251/61 (2013.01 - EP); B01D 2251/70 (2013.01 - EP US); B01D 2251/80 (2013.01 - EP US); B01D 2251/902 (2013.01 - EP US); B01D 2252/20494 (2013.01 - EP); B01D 2257/2022 (2013.01 - EP); B01D 2257/2042 (2013.01 - EP); B01D 2257/2045 (2013.01 - EP US); B01D 2257/2047 (2013.01 - EP); B01D 2257/302 (2013.01 - EP); B01D 2257/406 (2013.01 - EP US); B01D 2258/06 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021140304 A1 20210715; AU 2021206574 A1 20220804; BR 112022013502 A2 20220913; CA 3164299 A1 20210715; CL 2022001859 A1 20230331; CN 115087493 A 20220920; EP 4087673 A1 20221116; FR 3106063 A1 20210716; FR 3106063 B1 20220610; MX 2022008541 A 20221018; US 11839850 B2 20231212; US 2023043563 A1 20230209; US 2023364556 A1 20231116
DOCDB simple family (application)
FR 2021050029 W 20210108; AU 2021206574 A 20210108; BR 112022013502 A 20210108; CA 3164299 A 20210108; CL 2022001859 A 20220707; CN 202180012921 A 20210108; EP 21704851 A 20210108; FR 2000212 A 20200110; MX 2022008541 A 20210108; US 202117791774 A 20210108; US 202318357285 A 20230724