公开(公告)号：DE10155470A1

公开(公告)日：2003-05-22

申请号：DE10155470

申请日：2001-11-12

Applicant: BASF AG

Inventor： BITTERLICH STEFAN ,  REHFINGER ALWIN ,  BERG ANNE

IPC: B01D53/22 ,  B01J19/24 ,  C07D301/03 ,  C07D301/12 ,  C07C7/144 ,  C07D303/04

Abstract: A method for the synthesis of propylene oxide (PO) by epoxidation of propene with recovery of unreacted propene, in which propene is recovered from part or all of the off-stream by (i) addition of nitrogen, (ii) compression, (iii) condensation, (iv) gas permeation and (v) separation. An Independent claim is also included for apparatus for use in this method, comprising a nitrogen feed, a compression unit, a condensation unit, an organophilic membrane unit and a separation unit.

公开(公告)号：CA2455718A1

公开(公告)日：2003-02-13

申请号：CA2455718

申请日：2002-07-30

Applicant: BASF AG

Inventor： RIEBER NORBERT ,  RUDOLF PETER ,  BASSLER PETER ,  BERG ANNE ,  REHFINGER ALWIN ,  TELES JOAQUIM HENRIQUE

IPC: C07D301/12 ,  C07D301/32

Abstract: The invention relates to a method for the production of propylene oxide, comprising the following steps: (a) propene is reacted with hydrogen peroxid e in a solvent in the presence of a suitable catalyst in order to obtain a mixture (G0) of propylene oxide, solvent, unreacted propene, unreacted hydrogen peroxide and oxygen, (b) the propylene oxide is separated from the mixture (G0) in such a way that a mixture (G1) of unreacted propene and oxyg en is obtained, and (c) the mixture (G1) is used.

公开(公告)号：CA2453988A1

公开(公告)日：2003-01-30

申请号：CA2453988

申请日：2002-07-18

Applicant: BASF AG

Inventor： BERG ANNE ,  BASSLER PETER ,  RIEBER NORBERT ,  TELES JOAQUIM HENRIQUE ,  REHFINGER ALWIN ,  RUDOLF PETER

IPC: C07D301/12

Abstract: The invention relates to a method for producing propylene oxide, comprising at least the following steps: (a) propene is reacted with a hydroperoxide in a solvent in the presence of a zeolite catalyst, in order to obtain a mixture (G0), said mixture (G0) containing propylene oxide, solvent, non-reacted propene, non-reacted hydroperoxide and oxygen; (b) the propylene oxide is separated from the mixture (G0) in such a way that a mixture (G1) is obtaine d which comprises non-reacted propene and oxygen; (c) the mixture (G1) is brought into contact with a liquid medium containing at least solvent, in order to obtain the mixtures (G2) and (G3), said mixture (G3) containing a part of the non-reacted propene and oxygen, and said mixture (G2) containing the solvent and the rest of the propene, the separated mixture (G3) of non- reacted propene and oxygen having a ratio of oxygen to propene which renders the mixture (G3) non-inflammable, and the mixture (G2) supplying at least on e reaction between the propene and the hydroperoxide.