Method for producing aromatic nitro compounds

Details Method for producing aromatic nitro compounds Method for producing aromatic nitro compounds

C - Chemistry, Metallurgy

07

C

C07C 201/08 (2006.01) C07B 43/02 (2006.01) C07C 205/06 (2006.01) C07C 205/12 (2006.01) C07C 209/76 (2006.01)

Patent

CA 2308288

According to the invention, a quantity of 0.5 to 20,000 ppm of one or more surface active substances from the group of anionic, cationic, zwitterionic or non-ionic is added to the reaction mixture during the conversion of aromatic compounds with nitrating acid, said acid containing HNO3 and optional H2SO4 and/or H2O and/or H3PO4, to aromatic nitro compounds.

En faisant réagir des composés aromatiques avec des mélanges sulfonitriques renfermant HNO¿3? et éventuellement H¿2?SO¿4? et/ou H¿2?O et/ou H¿3?PO¿4?, on obtient des composés nitrés aromatiques. Selon l'invention, on ajoute au mélange réactionnel une quantité de 0,5 à 20000 ppm d'au moins une substance surfactive du groupe des anioniques, des cationiques, des zwitterioniques ou non ioniques.

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