METHOD FOR PREPARING 2-ETHYLHEXYL NITRATE BY CONTINUOUS METHOD Russian patent published in 2005 - IPC

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention proposes a method for preparing 2-ethylhexyl nitrate by continuous method. Method involves interaction of 2-ethylhexanol with sulfuric-nitric acid mixtures of the following composition, wt.-%: sulfuric acid (H₂SO₄), 60-45; nitric acid (HNO₃), 10-25; nitrogen oxides, 0.0001-0.1, and water, the balance, up to 100. Mixtures are prepared from 20% fumic sulfuric acid (oleum) and 52% of nitric acid. Nitration reaction is carried out in reactor of the ideal displacing at temperature 15-40°C, time reaction for 2-5 min and at the modulus (volume) acid mixture/2-ethylhexanol = (1.6:1)-(2.3:1) followed by isolation of the end product by centrifugation. Method provides enhancing yield of the basic substance, reducing reaction time of reaction mass and availability of the raw.

EFFECT: improved preparing method, enhanced yield.

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