METHOD FOR PREPARING STYRENE Russian patent published in 2008 - IPC C07D301/19 C07D303/04 C07C1/24 C07C15/46 

Abstract RU 2315760 C2

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of styrene. At the first step the method involves interaction of ethylbenzene hydroperoxide with propene in the presence of catalyst to yield propylene oxide and 1-phenylethanol followed by separate treatment of reaction flow and removing propylene oxide. At the second step the method involves interaction of 1-phenylethanol-containing distillate with a heterogenous dehydration catalyst at temperature 150-320°C to obtain styrene. Distillate contains 0.30 wt.-%, not above, compounds of molecular mass at least 195 Da. Invention provides decreasing the content of by-side compounds in styrene and to enhance it's the conversion degree.

EFFECT: improved method of synthesis.

3 cl, 3 tbl

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RU 2 315 760 C2

Authors

Bulens Minne

Nizbet Timoti Majkl

Dates

2008-01-27Published

2003-04-11Filed