C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/598.3
C07C 209/36 (2006.01) F22B 1/18 (2006.01)
Patent
CA 1211757
A PROCESS FOR THE CONTINUOUS PRODUCTION OF AROMATIC DIAMINES WITH THE SIMULTANEOUS PRODUCTION OF STEAM ABSTRACT OF THE DISCLOSURE Aromatic diamines are produced on a continuous basis by the catalytic hydrogenation of a reaction suspension of an aromatic dinitro compound, an aromatic diamine corresponding to the dinitro compound, finely- divided solid hydrogenation catalyst in suspension, water and organic solvent. The hydrogenation is carried out in a reactor made up of a bubble column provided with field tubes in which water circulated to cool the reactor is converted to steam. The ratio of the cooling area of the field tubes to the reaction volume is from 40 to 400 m2/m3. An excess pressure of from 40 to 200 bars is maintained in the bubble column. The reaction temperature is from 140 to 250°C. The space-time yield per cubic meter of reaction volume is typically from 1.4 to 3.5 metric ton of diamine per hour. This process is particularly advantageous in that steam having an excess pressure of more than 1 bar is produced.
451993
Becher Dieter
Dallmeyer Hermann
Humburger Siegbert
Schneider Wolfgang
Stein Harald
Aktiengesellschaft Bayer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
LandOfFree
Process for the continuous production of aromatic diamines... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the continuous production of aromatic diamines..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the continuous production of aromatic diamines... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1244413