STYRENE PRODUCTION PROCESS Russian patent published in 1998 - IPC

Abstract RU 2120933 C1

FIELD: industrial organic synthesis. SUBSTANCE: styrene is produced by dehydrogenation of ethylbenzene on iron oxide catalysts at 560-640 C in presence of water steam followed by isolation of styrene from dehydrogenation product (furnace oil) through multistep rectification with sequential isolation of benzene-toluene fraction, return ethylbenzene, and rectified styrene. Process is distinguished by that content of styrene in ethylbenzene charge entering dehydrogenation reactor is maintained at the level of 0.15 wt % resulting in rise of ethylbenzene conversion from 62.9 to 67.9%. EFFECT: increased ethylbenzene conversion.

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RU 2 120 933 C1

Authors

Galiev R.G.

Mustafin Kh.V.

Belokurov V.A.

Zuev V.P.

Smagin V.M.

Gatin I.R.

Dates

1998-10-27—Published

1997-07-04—Filed