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2 317 977

(13)

(51)

IPC

C07C249/04(2006-01-01)

C07C251/44(2006-01-01)

C07D201/04(2006-01-01)

(21) (22)

Application

2006101349/04, 2006-01-17

(24)

Start date

2006-01-17

(22)

Actual filing date

2006-01-17

(45)

Published

2008-02-27

(72)

Inventor

Boldyrev Anatolij PetrovichOgarkov Anatolij Arkad'EvichArdamakov Sergej Vital'EvichLebedev Petr Vasil'EvichRjumin Aleksandr Nikolaevich

(73)

Holder

Otkrytoe Aktsionernoe ObshchestvoBoldyrev Anatolij PetrovichOgarkov Anatolij Arkad'EvichArdamakov Sergej Vital'EvichLebedev Petr Vasil'EvichRjumin Aleksandr Nikolaevich

DEVICE FOR FORMING OXIMES Russian patent published in 2008 - IPC C07C249/04 C07C251/44 C07D201/04

Abstract RU 2317977 C2

FIELD: producing of caprolactam.

SUBSTANCE: device comprises two stages, circuits for circulation in the first and in the second stages, mixers for mixing cyclohexane, hydroxylamine sulfate, and ammonium, recycle of ammonium sulfur, pumps, heat exchanger, separating vessels, tanks for mixing and drying, pickups, and valves for control of pH of fluid by means of supplying ammonium.

EFFECT: enhanced efficiency.

1 cl, 2 dwg, 2 tbl, 2 ex

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RU 2 317 977 C2

Authors

Boldyrev Anatolij Petrovich

Ogarkov Anatolij Arkad'Evich

Ardamakov Sergej Vital'Evich

Lebedev Petr Vasil'Evich

Rjumin Aleksandr Nikolaevich

Dates

2008-02-27—Published

2006-01-17—Filed