C - Chemistry – Metallurgy – 06 – D
Patent
C - Chemistry, Metallurgy
06
D
C06D 5/00 (2006.01) B60R 21/26 (2006.01) C06B 21/00 (2006.01) C06B 29/00 (2006.01) C06B 43/00 (2006.01) C06D 5/06 (2006.01)
Patent
CA 2160350
An object of the invention is to provide a gas generating composition which is capable of significantly reducing the concentration of harmful gas components, particularly carbon monoxide, in the generated gas. Another object of the invention is to provide a process for molding a gas generating composition in a suitable shape with high efficiency without a risk of explosion, fire or the like, the process being capable of producing a durable and firm molded gas generating composition. The gas generating composition of the invention contains an oxide-based catalyst comprising at least two members selected from the elements of Groups I, IV, V, VI, VII and VIII in the periodic table in addition to the nitrogen-containing organic compound and the oxygen- containing inorganic oxidizing agent both essentially incorporated in the gas generating composition. The invention also provides a process for molding a gas generating composition, the process comprising the steps of adding 5 to 20% by weight of water to a gas generating composition essentially containing a nitrogen-containing organic compound and an oxyhalogen acid salt and further containing an oxide-based catalyst to give a wet mixture, granulating the wet mixture into wet granules, drying the wet granules to provide a discrete preparation and compression-molding the discrete preparation.
Composition gazogène servant à réduire la concentration de composants de gaz délétères, de CO en particulier, contenus dans les gaz qu'elle produit, et procédé de fabrication de comprimés de ladite composition pouvant être mis facilement dans une forme adaptée, durable et résistante, sans risque d'explosion, ni d'incendie. Ladite composition comporte un composé organique azoté et un oxydant inorganique comme constituants essentiels, ainsi qu'un oxyde catalyseur comprenant au moins deux composants d'éléments des groupes I, IV, V, VI, VII et VIII. Le procédé de l'invention consiste à mélanger les produits de départ c.-à-d. les composés azotés et l'oxyhalogénate en tant que constituants essentiels ainsi que l'oxyde catalyseur, avec de 5 à 20 % en poids d'eau, à faire des granulés du mélange obtenu, à faire sécher les granulés, et à faire des comprimés de leur masse.
Daicel Chemical Industries Ltd.
Nippon Koki Co. Ltd.
Otsuka Kagaku Kabushiki Kaisha
Ridout & Maybee Llp
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