MULTISTAGE METHOD OF LIQUID-PHASE AMMOXYLATION OF CYCLOHEXANONE Russian patent published in 1997 - IPC

Abstract RU 2078077 C1

FIELD: chemical technology. SUBSTANCE: invention relates to the synthesis of cyclohexanone oxime. Reagent 1: cyclohexanone. Reagent 2: hydrogen peroxide and ammonia. Reaction conditions: in medium of tert.-butanol, at 60-100 C, under pressure 1.5-5 bar, in the presence of titanium silicate as catalyst, at mole ratio hydrogen peroxide : ketone = 0.9-1.1 at the first stage up to the parent ketone conversion 95%, not less; at terminal stage value of molar ratio hydrogen peroxide : ketone is maintained at the region 1.8-2.1. EFFECT: improved method of synthesis. 3 cl, 4 dwg, 2 tbl

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RU 2 078 077 C1

Authors

Serdzhio Tonti[It]

Paolo Roffa[It]

Vittorio Dzhervasutti[It]

Dates

1997-04-27Published

1992-01-22Filed