METHOD OF PREPARING NITROMETHANE

METHOD OF PREPARING NITROMETHANE

chemical industry. SUBSTANCE: described is method of preparing nitromethane from chloroacetic acid derivatives, alkali agent and sodium nitrate in aqueous medium at elevated temperature. Chloracetic acid is used in free form, and alkali agent is used in amount sufficient to adjust pH of medium at 6-...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GAREEV G.A, PERSHIN N.S, BOVT V.V
Format: Patent
Sprache:eng ; rus
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:chemical industry. SUBSTANCE: described is method of preparing nitromethane from chloroacetic acid derivatives, alkali agent and sodium nitrate in aqueous medium at elevated temperature. Chloracetic acid is used in free form, and alkali agent is used in amount sufficient to adjust pH of medium at 6-8 (preferably 7.5), and process is carried out at conditions of constant distillation of the resulting nitromethane in the for of azetrope with water. EFFECT: increased yield of the desired product.