Societe D'exploitation De Produits Pour Les Industries Chimiques Seppic

Societe Chimique De La Grande Paroisse, Azote Et Produits Chimiques

Societe Chimique De La Grande Pariosse, Azote Et Produits Chimiques

Roger Mari

Jacques Quibel

Bernard Jacquinot

Pierre Lhonore

Nitromethane is preparaed from a nitriding agent comprising an oxygenated nitrogen compound and a carbon compound containing two carbon atoms and at least one atom other than carbon and hydrogen.

Process for producing nitromethane

The invention concerns the manufacture of nitromethane by nitration of mene in a homogeneous gaseous phase, the nitrating agent being nitric acid, nitrogen peroxide or mixtures thereof. According to the disclosed process, the molar ratio methane/nitrating agent is between 0.1 and 5; the reaction contact time between 0.1 and 120 seconds; the reaction pressure between 1 and 35 bars; the temperature between 270.degree. and 600.degree. C. The nitration is carried out in the presence of an active agent of the halogen or derivative type introduced in a molar ratio at the most equal to 3. An installation is disclosed for industrially manufacturing nitromethane.

Process and installation for manufacturing nitromethane

Nitroparaffins are made in the homogeneous gaseous phase by nitration of ethane, performed in the presence of an active agent carrying an NO or NO.sub.2 group that is easily transferable. The process is applicable particularly to making nitromethane with high yields.

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Villers-les-Nancy, France

Roger Mari