Two-stage dinitrotoluene production process

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

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568932, 1491096, 149105, C07C20500, C06B 2504, D03D 2300

Patent

active

059489448

ABSTRACT:
A multi-step process for producing DNT employing a mononitration step in a single liquid phase at an elevated temperature using a carefully controlled amount of water, followed by a phase separation step prior to dinitration of the MNT present in the resulting organic phase. This process results in a DNT product with a desired isomer ratio of 2,4-DNT to 2,6-DNT and provide relatively fast nitration rates with less by-products.

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patent: 5354924 (1994-10-01), Mason
patent: 5488187 (1996-01-01), Mason

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