Method for preparing C1-C4 alkyl nitrite ester
A technology of alkyl nitrite and alkanol, which is applied in the preparation of nitrite, organic chemistry, etc., can solve the problem of low selectivity of alkyl nitrite, achieve production efficiency improvement, good technical effect, increase The effect of specific surface area
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Embodiment 1～11
[0031] Nitrogen oxides are selected from NO, raw materials NO, C 1 ~C 4 The alkanol and the first stream of oxygen enter the first rotating bed supergravity field reactor to react, and the gas phase reaction effluent I containing alkyl nitrite and unreacted nitrogen oxides and the liquid phase reaction containing unreacted alkanol are obtained Effluent I; gas phase reaction effluent I, liquid phase reaction effluent I and the second strand of oxygen enter the second rotating bed supergravity field reactor to react, and obtain reaction effluent II containing alkyl nitrite and liquid phase reaction Effluent III, after separation, gives alkyl nitrite. Wherein, the rotors of the first rotating bed high gravity field reactor and the second rotating bed high gravity field reactor are fixed with porous packing layers, and the first rotating bed high gravity field reactor and the second rotating bed high gravity field reaction The devices are the same as the rotating bed supergravit...
Embodiment 12
[0035] Nitrogen oxides are selected from NO and NO 2 The molar ratio is a mixture of 3:1, the raw material nitrogen oxides, methanol and the first stream of oxygen enter the first rotating bed supergravity field reactor to react, and the gas phase reaction containing alkyl nitrite and unreacted nitrogen oxides is obtained. Effluent I and liquid-phase reaction effluent I containing unreacted methanol; Gas-phase reaction effluent I, liquid-phase reaction effluent I and the second strand of oxygen enter the second rotating bed supergravity field reactor to react to obtain nitrous acid containing The reaction effluent II of the methyl ester and the liquid phase reaction effluent III are separated to obtain methyl nitrite. Wherein, the rotors of the first rotating bed supergravity field reactor and the second rotating bed supergravity field reactor are fixed with porous packing layers, and the raw materials pass through the porous packing layers in the rotating bed supergravity fie...
Embodiment 13
[0037] Nitrogen oxides are selected from NO, and the raw materials NO, methanol and the first stream of oxygen enter the first rotating bed high-gravity field reactor to react, and obtain gas phase reaction effluent I containing methyl nitrite and unreacted nitrogen oxides and containing unreacted nitrogen oxides. The liquid-phase reaction effluent I of methanol reaction; the gas-phase reaction effluent I, the liquid-phase reaction effluent I and the second oxygen enter the second rotating bed supergravity field reactor to react, and obtain the reaction effluent containing methyl nitrite II and the liquid phase reaction effluent III are separated to obtain methyl nitrite. Among them, the rotors of the first rotating bed high-gravity field reactor and the second rotating bed high-gravity field reactor are fixed with porous packing layers, and the raw materials pass through the porous packing layers in a parallel flow in the rotating bed high-gravity field reactors. . The react...
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