<p>1390523 Nitroparaffins SOC CHIMIQUE DE LA GRANDE PAROISSE 16 Oct 1972 [29 Oct 1971] 47651/72 Heading C2C Nitroparaffins are made by nitrating propane with nitrogen peroxide in the presence of oxygen introduced in the form of air at a pressure of 8 to 14 bars, the starting materials being preheated at the reaction pressure and being introduced into the reaction zone at 150-330‹ C., and the gaseous effluents from the reaction zone being subjected to a rapid cooling or quenching. The effluent gases from the cooling or quenching zone may be passed together with air to an oxidizing tower wherein nitric oxide is reconverted to nitrogen peroxide and the gases from the tower may be scrubbed with nitric acid which dissolves the nitrogen peroxide. The resulting nitric acid solution may be degasified and the nitric acid and nitrogen peroxide obtained recycled. The gases from the scrubbing operation may be further scrubbed with an alkaline solution and propane may be recovered from the resulting effluent gases. An example describes the nitration of propane to a mixture of nitromethane, nitroethane, 1-nitropropane and 2-nitropropane.</p>
申请公布号
DE2250916(B2)
申请公布日期
1981.07.09
申请号
DE19722250916
申请日期
1972.10.18
申请人
SOCIETE CHIMIQUE DE LA GRANDE PAROISSE AZOTE ET PRODUITS CHIMIQUES, PARIS, FR
