C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 205/06 (2006.01) B01J 23/24 (2006.01) C01B 17/88 (2006.01)
Patent
CA 2692280
A method for producing nitrobenzene is disclosed which comprises forming a dispersion comprising benzene-containing droplets or particles dispersed in a mixture of concentrated nitric acid and concentrated sulfuric acid, wherein said particles have a mean diameter less than one micron, and subjecting the dispersion to reaction conditions comprising a pressure in the range of about 203 kPa (2 atm) to about 6080 kPa (60 atm) and a temperature in the range of about 20°C to about 230°C, whereby at least a portion of said benzene is nitrated to form nitrobenzene. A system for carrying out the method is also disclosed.
L'invention concerne un procédé de production de nitrobenzène qui consiste à former une dispersion qui comprend des goutelettes ou des particules contenant du benzène, dispersées dans un mélange d'acide nitrique et d'acide sulfurique concentrés, ces particules possédant un diamètre inférieur à un micron, et à mettre la dispersion dans des conditions de réaction notamment, une pression comprise entre environ 203 kPa (2 atm) et environ 6080 kPa (60 atm) et une température comprise entre environ 20°C et environ 230°C, au moins une partie de ce benzène étant azoté pour former du nitrobenzène. L'invention concerne également un système de mise en oeuvre de ce procédé.
Anthony Rayford G.
Bagherzadeh Ebrahim
Borsinger Gregory
Hassan Abbas
Hassan Aziz
H. R. D. Corporation
Ridout & Maybee Llp
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