Biazzi SA, Switzerland, signed a contract with Liaoning Beifang Jinhua PU Co. Ltd., China, for the delivery of an hydrogenation plant with catalyst recycling for the production of 46,000 Mt/a of TDA (toluene diamine) starting from DNT (dinitrotoluene). Biazzi shall not only deliver its own TDA process but also the extended basic engineering and essential equipment for the entire plant. Beside good final product and consumptions characteristics Biazzi’s process differs from other suppliers by the use of the Biazzi patented hydrogenation reactor. The reactor efficiency and high heat exchange capacity enable to achieve this capacity without the requirement of a solvent in one single line. The reactor volume is quite smaller than usual.
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