<p>N-(2-hydroxyethyl)-2-pyrrolidone (HEP) is purified by a distillation sequence in which the purified HEP is recovered as a side stream without being separated as an overhead at any point in the procedure.</p>
申请公布号
WO2006047004(A1)
申请公布日期
2006.05.04
申请号
WO2005US31079
申请日期
2005.08.30
申请人
LYONDELL CHEMICAL TECHNOLOGY, L.P.
发明人
KAHN, ANDREW, P.;LEYSHON, DAVID, W.;LIN, SHAW-CHAN;CAREY, EDWARD, P.
