公开(公告)号：DE50111854D1

公开(公告)日：2007-02-22

申请号：DE50111854

申请日：2001-05-09

Applicant: BASF AG

Inventor： MEYER GERALD ,  KAIBEL GERD ,  BOHNER GERD ,  KINDLER KLAUS ,  ADRIAN TILL ,  PICKENAECKER KARIN ,  PAHL MELANIE ,  HILL THOMAS

IPC: C07C7/08 ,  C07C11/167 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C7/00 ,  C07C7/163 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

Abstract: In a process for the work-up of a C4 fraction, comprising the process steps Extractive distillation (I), Selective hydrogenation over a heterogeneous catalyst (II), a crude 1,3-butadiene stream being obtained following process steps (I) and (II) and Distillation of the crude 1,3-butadiene stream for isolating pure 1,3-butadiene (III), the process steps I and II are carried out in a single column or in thermally coupled columns and the process step III is carried out in a second column.

公开(公告)号：DK1282586T3

公开(公告)日：2007-03-19

申请号：DK01945105

申请日：2001-05-09

Applicant: BASF AG

Inventor： ADRIAN TILL ,  PICKENAECKER KARIN ,  MEYER GERALD ,  KAIBEL GERD ,  KINDLER KLAUS ,  HILL THOMAS ,  BOHNER GERD ,  PAHL MELANIE

IPC: C07C7/08 ,  C07C11/167 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C7/00 ,  C07C7/163 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

Abstract: In a process for the work-up of a C4 fraction, comprising the process steps Extractive distillation (I), Selective hydrogenation over a heterogeneous catalyst (II), a crude 1,3-butadiene stream being obtained following process steps (I) and (II) and Distillation of the crude 1,3-butadiene stream for isolating pure 1,3-butadiene (III), the process steps I and II are carried out in a single column or in thermally coupled columns and the process step III is carried out in a second column.

公开(公告)号：DE10144013A1

公开(公告)日：2003-03-27

申请号：DE10144013

申请日：2001-09-07

Applicant: BASF AG

Inventor： STAMMER ACHIM ,  FISCHER MARTIN ,  QUAISER STEFAN ,  PICKENAECKER KARIN

IPC: B01D1/00 ,  B01D1/28 ,  B01D3/14 ,  B01D5/00 ,  C01B15/013 ,  C01B15/029

Abstract: Process for working up aqueous hydrogen peroxide solution (I) from direct synthesis comprises: (a) removing hardly volatile inorganic impurities (II) by feeding (I) into an n-stage evaporator cascade, (where n is at least 2) and a continuous evaporator is used at least in the n-th stage, and thermal separation into steam containing H2O2 and a residue containing (II); and (b) concentration of the steam to increase the H2O2 content. An Independent claim is included for a process for producing (I) containing at most 0.001 wt.% (II) by: (i) reacting hydrogen and oxygen in aqueous medium in the presence of catalyst(s) and inorganic protonic acid(s); and (ii) working the reaction mixture up by the specified process.

公开(公告)号：HU0302011A2

公开(公告)日：2003-09-29

申请号：HU0302011

申请日：2001-05-09

Applicant: BASF AG

Inventor： ADRIAN TILL ,  BOHNER GERD ,  HILL THOMAS ,  KAIBEL GERD ,  KINDLER KLAUS ,  MEYER GERALD ,  PAHL MELANIE ,  PICKENAECKER KARIN

IPC: C07C7/08 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C7/00 ,  C07C11/167 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

Abstract: In a process for the work-up of a C4 fraction, comprising the process steps Extractive distillation (I), Selective hydrogenation over a heterogeneous catalyst (II), a crude 1,3-butadiene stream being obtained following process steps (I) and (II) and Distillation of the crude 1,3-butadiene stream for isolating pure 1,3-butadiene (III), the process steps I and II are carried out in a single column or in thermally coupled columns and the process step III is carried out in a second column.