A process for producing epoxides, the process including: (a) feeding at least one aqueous alkali and at least one halohydrin to a reactive distillation column, wherein the reactive distillation column includes a feed zone, a top zone disposed above the feed zone, and a bottom zone disposed below the feed zone; (b) concurrently in the reactive distillation column: (i) reacting at least a portion of the halohydrin with the alkali to form an epoxide; and (ii) stripping water and the epoxide from a basic aqueous residue; (c) recovering the water and the epoxide from the reactive distillation column as an overheads fraction; (d) condensing and phase separating the overheads fraction to form an organic overheads fraction including the epoxide and an aqueous overheads fraction including water; and (e) maintaining a liquid holdup per plate in the feed zone at a residence time of 10 seconds or less.
申请公布号
WO2010014898(A9)
申请公布日期
2011.03.03
申请号
WO2009US52399
申请日期
2009.07.31
申请人
DOW GLOBAL TECHNOLOGIES, INC.;FAN, WILLIAM, W.;KNEUPPER, CHRISTIAN, D.;NOORMANN, SASCHA, N.;PATRASCU, RENATE, P.
发明人
FAN, WILLIAM, W.;KNEUPPER, CHRISTIAN, D.;NOORMANN, SASCHA, N.;PATRASCU, RENATE, P.