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1. (WO1998050324) REDUCING POLLUTANT GASES IN GAS MIXTURES FROM PYROTECHNIC REACTIONS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050324 International Application No.: PCT/EP1998/002562
Publication Date: 12.11.1998 International Filing Date: 30.04.1998
Chapter 2 Demand Filed: 30.11.1998
IPC:
B01D 53/56 (2006.01) ,B01D 53/74 (2006.01) ,C06B 23/02 (2006.01) ,C06D 5/06 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
46
Removing components of defined structure
54
Nitrogen compounds
56
Nitrogen oxides
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34
Chemical or biological purification of waste gases
74
General processes for purification of waste gases; Apparatus or devices specially adapted therefor
C CHEMISTRY; METALLURGY
06
EXPLOSIVES; MATCHES
B
EXPLOSIVE OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
23
Compositions characterised by non-explosive or non-thermic constituents
02
for neutralising poisonous gases from explosives produced during blasting
C CHEMISTRY; METALLURGY
06
EXPLOSIVES; MATCHES
D
MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
5
Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
06
by reaction of two or more solids
Applicants:
DYNAMIT NOBEL GMBH EXPLOSIVSTOFF- UND SYSTEMTECHNIK [DE/DE]; Kaiserstrasse 1 D-53840 Troisdorf, DE (AT, BE, BR, CA, CH, CN, CY, CZ, DE, DK, ES, FI, FR, GB, GR, IE, IT, JP, KR, LU, MC, MX, NL, PL, PT, RU, SE, TR)
BLEY, Ulrich [DE/DE]; DE (UsOnly)
REDECKER, Klaus [DE/DE]; DE (UsOnly)
REICHELT, Martin [DE/DE]; DE (UsOnly)
WEUTER, Waldemar [DE/DE]; DE (UsOnly)
Inventors:
BLEY, Ulrich; DE
REDECKER, Klaus; DE
REICHELT, Martin; DE
WEUTER, Waldemar; DE
Agent:
UPPENA, Franz ; Dynamit Nobel Aktiengesellschaft Patentabteilung D-53839 Troisdorf, DE
Priority Data:
197 18 553.302.05.1997DE
Title (DE) REDUZIERUNG VON SCHADGASEN IN GASGEMISCHEN AUS PYROTECHNISCHEN REAKTIONEN
(EN) REDUCING POLLUTANT GASES IN GAS MIXTURES FROM PYROTECHNIC REACTIONS
(FR) REDUCTION DE GAZ NOCIFS DANS DES MELANGES GAZEUX PROVENANT DE REACTIONS PYROTECHNIQUES
Abstract:
(DE) Verfahren, Mittel und Vorrichtung zur Reduzierung von Schadgasen in Gasgemischen aus pyrotechnischen Reaktionen, dadurch realisiert, daß bei der pyrotechnischen Reaktion mindestens ein Zusatzstoff aus der Gruppe der Metallocene, Metallocenderivate, Harnstoff, Harnstoffderivate, Schwefel und/oder Schwefelverbindungen durch die bei der pyrotechnischen Reaktion frei werdende Temperatur verdampft wird und die Schadgase in einer homogenen Gasphasenreaktion zu nicht toxischen Verbindungen umgesetzt werden.
(EN) The invention relates to a method, agents and a device for reducing pollutant gases in gas mixtures resulting from pyrotechnic reactions. To this end, at least one additive from the group of metallocenes, metallocene derivatives, urea, urea devivatives, sulphur and/or sulphur compounds is vaporized during the pyrotechnic reaction, as a result of the temperature released during said reaction. The pollutant gases are converted into non-toxic compounds in a homogenous gas phase reaction.
(FR) Procédé, moyens et dispositif destinés à réduire les gaz nocifs dans des mélanges gazeux provenant de réactions pyrotechniques, caractérisés en ce que lors de la réaction pyrotechnique, au moins un additif choisi dans le groupe des métallocènes, dérivés de métallocènes, urée, dérivés d'urée, soufre et/ou composés surlfurés est volatilisé du fait de la température libérée lors de la réaction pyrotechnique, et en ce que les gaz nocifs sont transformés en composés non toxiques par réaction en phase gazeuse homogène.
Designated States: BR, CA, CN, CZ, JP, KR, MX, PL, RU, TR, US
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)
Also published as:
CZPV1999-3868EP0979219JP2001525782 CN1253538