C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
C01B 21/28 (2006.01) B01D 53/79 (2006.01) B01J 19/02 (2006.01) C01C 1/02 (2006.01) C01C 1/04 (2006.01) C01C 3/02 (2006.01)
Patent
CA 2370185
A process for nondestructive heating and supplying of ammonia feed gas wherein high quality ammonia (typically greater than 90 % and as high as 99 %) is preserved at temperatures well in excess of the conventional limit of 230 ~C (typically from 400 to 700 ~C) by controlling the selection of metal surfaces in contact with the hot gas, the bulk temperature of the gas, the wall temperature, the pressure, the contact time, and the spatial surface density. Such hot gases are particularly useful for the manufacture of hydrogen cyanide.
Ce procédé non destructif de chauffage et fourniture d'un gaz d'alimentation contenant de l'ammoniac, permettant de conserver une très bonne qualité d'ammoniac (généralement supérieure à 90 % et allant jusqu'à 99%), à des températures bien supérieures à la limite classique de 230 ·C (généralement de 400 à 700·C), consiste à maîtriser le choix des surfaces métalliques en contact avec le gaz chaud, la température totale du gaz, la température de paroi, la pression, le temps de contact avec les parois, et la densité surfacique spatiale. De tels gaz chauds sont notamment utiles dans la fabrication de cyanure d'hydrogène.
Barnes John J.
Bletsos Ioannis V.
Gelblum Peter Gideon
Herron Norman
Kim Tae Hoon
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
Invista Technologies S.a.r.l.
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