C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 205/06 (2006.01) B01J 10/00 (2006.01) B01J 14/00 (2006.01) B01J 19/24 (2006.01) B01J 19/26 (2006.01) C07C 201/08 (2006.01) C07C 205/12 (2006.01)
Patent
CA 2160520
An aromatic compound is polynitrated in a continuous process in a single apparatus under adiabatic conditions in an emulsion as the reaction medium. From 1.3 to 3.5 mol of HNO3 per mol of aromatic compound are introduced in the form of a nitronium ion solution into the reactor with the aromatic compound under conditions such that an emulsion forms. The emulsion, which has a tendency to coalesce, is maintained by repeated dispersion. The first dispersion of the liquid streams to produce the emulsion takes place in less than one second. At least 20% of the total amount of HNO3 to be used should generally be present during this first dispersion. It is preferred, however, that the total amount of nitronium ion solution to be used be present at the time the aromatic compound and nitronium ion solution are first dispersed.
Klingler Uwe
Pirkl Hans-Georg
Schieb Thomas
Schomacker Reihard
Wiechers Gerhard
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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