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2 116 295

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IPC

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Application

96121229/25, 1996-10-29

(22)

Actual filing date

1996-10-29

(45)

Published

1998-07-27

(72)

Inventor

Serebrjakov B.R.Sakhapov G.Z.Vorozhejkin A.P.Nefedov E.S.Kovalenko V.V.Belokurov V.A.Vasil'Ev I.M.Petukhov A.A.

(73)

Holder

Aktsionernoe Obshchestvo

REACTOR APPARATUS FOR PRODUCING ETHYLBENZENE HYDROPEROXIDE Russian patent published in 1998 - IPC

Abstract RU 2116295 C1

FIELD: chemical engineering. SUBSTANCE: invention relates to production of ethylbenzene hydroperoxide via oxidizing ethylbenzene by oxygen- containing gas (in particular, oxygen) and may likewise be used in production of isobutane and isopentane hydroperoxides. Oxidation is carried out at 140-160 C (145-155 C) at pressure 5 atm until residual oxygen content in non-condensed gas reaches 3 vol % (not recycled) in a set of vertical reactors provided with vertical stream-distributing heat exchangers. Temperature fall in the cooling liquid in heat exchangers is within 20 to 40 C range. Oxygen-containing gas stream distributors disposed in the bottom part of heat exchangers have openings oriented at angles 45 deg., and flow velocity of oxygen-containing gas ranges from 30 to 90 m/s. EFFECT: increased yield of hydroperoxide doe to higher oxidation selectivity and reduced yield of acids. 1 dwg

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RU 2 116 295 C1

Authors

Serebrjakov B.R.

Sakhapov G.Z.

Vorozhejkin A.P.

Nefedov E.S.

Kovalenko V.V.

Belokurov V.A.

Vasil'Ev I.M.

Petukhov A.A.

Dates

1998-07-27—Published

1996-10-29—Filed

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