C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 205/06 (2006.01) C07C 201/08 (2006.01)
Patent
CA 2155561
Dinitrotoluene is produced by nitrating toluene with nitrating acid under adiabatic conditions in a manner such that some mononitrotoluene is present in reaction mixture. The nitration reaction mixture is then treated to remove at least 5% by weight of water before the reaction mixture is separated into an acid phase and an organic phase. The product dinitrotoluene is recovered from the organic phase. The acid phase may be recycled after nitric acid has been added to replace that which was used in the nitration reaction.
Klingler Uwe
Schieb Thomas
Wastian Dietmar
Wiechers Gerhard
Zimmermann Jurgen
Aktiengesellschaft Bayer
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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