METHOD OF PRODUCING CYCLOHEXANOL AND/OR CYCLOHEXANONE Russian patent published in 2019 - IPC C07C27/12 C07C29/50 C07C35/08 C07C45/33 C07C49/403 

Abstract RU 2688226 C1

FIELD: technological processes.

SUBSTANCE: present invention relates to a method of producing cyclohexanol and/or cyclohexanone, which consists in oxidizing cyclohexane with an oxygen-containing gas in the presence of an imide catalyst at high temperature and pressure. Initially heating mixture of initial cyclohexane with catalyst to temperature of 155–170 °C, then air is supplied, mixture is held for 0.5–5 minutes, after which temperature is reduced to 115–150 °C, at which the process is carried out for 30–90 minutes, wherein catalyst used is compound of following formula (1), where R1, R2, R3, R4 – identical or different substitutes, for example, hydrogen, halogen, alkyl, hydroxyl, cycloalkyl, phenyl group (1), R1, R2, R3, R4=H (a); R2, R3, R4=H, R1=CH3 (b); R1, R3, R4=H, R2=CH3 (c); R2, R3, R4=H, R1=C6H5 (d); R1, R3, R4=H, R2=C6H5 (e); R2, R3, R4=H, R1=Cl (f); R1, R3, R4=H, R2=Cl (g); R2, R3, R4=H, R1=Br (h); R1, R3, R4=H, R2=Br (i); R2, R3, R1, R2, R3, R4=Cl (k); R1, R2, R3, R4=Br (I); R1, R3, R4=H, R2=NO2 (n).

EFFECT: disclosed method increases rate and selectivity of the process.

3 cl, 7 ex

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RU 2 688 226 C1

Authors

Kurganova Ekaterina Anatolevna

Koshel Georgij Nikolaevich

Frolov Aleksandr Sergeevich

Kalenova Aleksandra Sergeevna

Lebedeva Nina Valentinovna

Sapunov Valentin Nikolaevich

Dakhnavi Eldar Musaevich

Dates

2019-05-21Published

2018-04-02Filed