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Application

93054886/04, 1993-12-09

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Actual filing date

1993-12-09

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Published

1998-04-27

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Inventor

Gareev Gegel' AmirovichSvirskaja Liana GegelevnaPershin Nikolaj StepanovichMen'Shov Vladimir Nikiforovich

(73)

Holder

Gareev Gegel' AmirovichSvirskaja Liana GegelevnaPershin Nikolaj StepanovichMen'Shov Vladimir Nikiforovich

METHOD OF NITROMETHANE SYNTHESIS Russian patent published in 1998 - IPC

Abstract RU 2109728 C1

FIELD: organic chemistry and technology. SUBSTANCE: product: nitromethane. Yield is 60%, purity is 99.5%. Reagent 1: dimethylsulfate. Reagent 2: sodium nitrite. Reaction conditions: in continuously-acting cascade consisting of three reactors, at 95-105 C. Temperature in the first reactor is 105-110 C. The end product is isolated as an azeotrope with water at pH 5-8 followed by distillate separation. Synthesized compound is used as a semiproduct in chemical-pharmaceutical industry. EFFECT: improved method of synthesis, increased yield and purity. 1 dwg

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RU 2 109 728 C1

Authors

Gareev Gegel' Amirovich

Svirskaja Liana Gegelevna

Pershin Nikolaj Stepanovich

Men'Shov Vladimir Nikiforovich

Dates

1998-04-27—Published

1993-12-09—Filed

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