Process for producing isocyanate from nitro compounds and carbon

Details Process for producing isocyanate from nitro compounds and carbon Process for producing isocyanate from nitro compounds and carbon

1976-09-27

1978-01-24

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252430, 252472, 2603976, C07C11806

Patent

active

040703916

ABSTRACT:
In the process for preparing isocyanate, particularly aromatic isocyanate, by the reaction of an organic nitro compound, particularly an aromatic dinitro compound with carbon monoxide in the presence of a catalyst, the improvement which comprises employing as said catalyst rhodium oxide, particularly substantially amorphous rhodium oxide, and conducting the reaction in the presence of a promoter quantity of a nitrilic solvent, such as acetonitrile.

REFERENCES:
patent: 3576836 (1971-04-01), Prichard
patent: 3728370 (1973-04-01), Ottmann et al.

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