ETHYLBENZENE/STYRENE FRACTION SEPARATION METHOD Russian patent published in 2003 - IPC

Abstract RU 2201915 C2

FIELD: industrial organic synthesis. SUBSTANCE: method is realized by consecutive isolation of benzene- toluene fraction, recycling ethylbenzene, and rectified styrene from initial fraction and afterexhaustion of styrene using inhibitor based on pyridine compounds. Column isolating benzene-toluene fraction receives up to 35% of bottom fluid from styrene afterexhaustion column mixed with benzene-toluene fraction. Inhibitor is supplied in amount 90 g/1 t styrene directly from column isolating recycling ethylbenzene and rectified styrene at weight ratio 0.3:1. EFFECT: elaborated method of separating ethylbenzene/styrene fractions obtained at dehydration of ethylbenzene with minimal losses of inhibitor and styrene. 1 dwg, 1 tbl, 2 ex

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RU 2 201 915 C2

Authors

Mustafin Kh.V.

Borejko N.P.

Zuev V.P.

Kovalenko V.V.

Gatin I.R.

Dates

2003-04-10—Published

2001-04-26—Filed