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https://doi.org/10.37358/Rev.Chim.1949

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Revista de Chimie (Rev. Chim.), Year 2007, Volume 58, Issue 8,





Investigations on Secondary Butanol Extraction
by Supercritical Butene

Abstract:

Parallel to the direct hydration of n-butene catalyzed by solid acid catalysts, the extraction of the reaction product (secondary butanol-SBA) by the supercritical butene is taking place. Extraction experiments were performed in a multiphase reactor endowed with two windows made of high pressure resistant glass, allowing the observation of the mixing behavior inside the reactor. In order to investigate how fast the extraction of the secondary butanol (SBA) by supercritical butene is, SBA - water mixture of well known composition (5 wt% SBA in water) was fed into the reactor to determine the rate of the extraction step. All the extraction experiments were performed without catalyst in the reactor. The experiments were performed under supercritical conditions (butene was the compound in the supercritical state Tcr n-butene=146.4°C and Pcr n-butene=39.7 atm), at different residence times (30, 25 and 5 min), and at three different stirring speeds (250, 500 and 750 RPM). Keywords: supercritical extraction, butene, secondary butanol


Issue: 2007, Volume 58, Issue 8
Pages:
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