Process for nitrating aromatic hydrocarbons

Details Process for nitrating aromatic hydrocarbons Process for nitrating aromatic hydrocarbons

1977-12-12

1978-10-31

Sebastian, Leland A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260688, C07B 1100

Patent

active

041234669

ABSTRACT:
An improved process for the nitration of aromatic hydrocarbons is described. The aromatic hydrocarbon (benzene, toluene of particular interest) is reacted with gaseous nitrogen dioxide in the presence of a catalytic amount of sulfuric acid and in the absence of oxygen. The process is highly selective and avoids the formation of undesired by-products. The acid employed as catalyst can be recovered and recycled after removal of water of condensation liberated in the reaction.

REFERENCES:
patent: 3415876 (1968-12-01), Boonstra et al.
patent: 3922315 (1975-11-01), Mitchell et al.
patent: 4028425 (1977-06-01), Gilbert

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