Process for producing nitrobenzenes

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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568937, 568939, C07C20511

Patent

active

050307762

ABSTRACT:
Nitrobenzenes are prepared by nitrating benzenes in vapor phase using nitric acid as a nitrating agent and under continuous or intermittent feeding of sulfuric acid as a catalyst in the presence of a catalyst comprising sulfuric acid supported on a carrier or in the presence of only a carrier. This process can provide very high and prolonged nitration activity.

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