Process for production of gaseous hydrogen bromide and...

Details Process for production of gaseous hydrogen bromide and... Process for production of gaseous hydrogen bromide and...

C - Chemistry, Metallurgy

01

B

C01B 7/09 (2006.01) B01J 12/00 (2006.01) B01J 19/02 (2006.01) F23D 14/62 (2006.01) F23M 5/00 (2006.01)

Patent

CA 2209444

The invention concerns a process for the production of gaseous hydrogen bromide by direct combustion of bromine in hydrogen. The process consists in performing the combustion reaction in a system including a burner, a cooled combustion chamber comprising impregnated graphite and a cooling zone consisting of a steel jacket in which blocks of impregnated graphite are piled. This process offers the advantage of producing a very pure hydrogen bromide at sufficient pressure, which allows it to be used either as a reagent in organic synthesis or to prepare pure HBr solutions without resorting to costly recompression and purification methods.

L'invention concerne un procédé de production de bromure d'hydrogène gazeux par combustion directe du brome dans l'hydrogène. Ce procédé consiste à effectuer la réaction de combustion dans un appareillage comprenant un brûleur, une chambre de combustion refroidie constituée de graphite imprégné et une zone de refroidissement constituée par une enveloppe en acier dans laquelle sont empilés des blocs de graphite imprégné. Ce précédé présente l'avantage de conduire à un bromure d'hydrogène très pur à une pression suffisante, ce qui permet de l'utiliser soit comme réactif en synthèse organique, soit pour préparer des solutions HBr pur sans l'utilisation de moyens coûteux de recompression et de purification.

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