METHOD FOR PROCESSING REACTION PRODUCT STEMMING FROM THE HYDROGENATION OF EDDN OR EDMN,申请号EP20120751344-传众专利搜索

METHOD FOR PROCESSING REACTION PRODUCT STEMMING FROM THE HYDROGENATION OF EDDN OR EDMN

申请公布号：EP2751067(A1)

申请号：EP20120751344

申请日期：2012.08.30

申请公布日期：2014.07.09

申请人：

BASF SE

发明人：LUYKEN, HERMANN;AHRENS, SEBASTIAN;BRASCHE, GORDON;BALDAMUS, JENS;BAUMANN, ROBERT;HUGO, RANDOLF;JAEGLI, STEPHANIE;MELDER, JOHANN-PETER;PASTRE, JÖRG;BUSCHHAUS, BORIS

分类号：C07C209/48;C07C209/86;C07C211/14

主分类号：C07C209/48

摘要：<p>The invention relates to a method for separating a reaction product stemming from the reaction of EDDN or EDMN with hydrogen in the presence of THF and a catalyst that contains TETA or DETA, water and optionally organic compounds that have a higher or lower boiling point than TETA or DETA, characterized by a) adding the reaction product, once hydrogen was separated off, to a distillation column DK1 in which a THF/water azeotrope is separated off via the top, said azeotrope optionally containing other organic compounds having a lower boiling point than TETA or DETA, and in which column a bottom product which contains TETA or DETA is separated off, and ii) guiding the bottom product from stage i) to a distillation column DK2 and separating THF off via the top and removing a TETA- or DETA-containing stream at the bottom of the column, and iii) condensing the stream from stage i) removed at the top of the column DK1 and adding to the condensate or a part of the condensate an organic solvent, which is substantially immiscible with water, in such an amount that a phase decomposition takes place and separating the mixture so obtained in a phase separator, returning the arising organic phase, which contains THF and the organic solvent which is substantially immiscible with water, to the column DK1 and removing the aqueous phase.</p>