公开(公告)号：ZA200700158B

公开(公告)日：2008-05-28

申请号：ZA200700158

申请日：2007-01-05

Applicant: BASF AG ,  DOW CHEMICAL CO

Inventor： HANS-GEORG GOBBEL ,  HENNING SCHULTZ ,  PETER SCHULTZ ,  RENATE PATRASCU ,  MALTE SCHULZ ,  MEINOLF WEIDENBACH

IPC: C07D20090101

Abstract: A method of separating propylene oxide from a mixture (M) comprising 5 to 50 percent by weight propylene oxide and 50 to 85 percent by weight methanol, said method comprising (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing a polar solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column at a bottoms temperature of from 40 to 70° C. and at a pressure of from 300 to 750 mbar.

公开(公告)号：ZA200605926B

公开(公告)日：2008-05-28

申请号：ZA200605926

申请日：2006-07-18

Applicant: BASF AG

Inventor： HANS-GEORG GOBBEL ,  PETER BASSLER ,  HENRIQUE TELES JOAQUIM ,  PETER RUDOLF

IPC: B01J20090101 ,  B01J8/06 ,  B01J19/24 ,  F28D20090101 ,  F28D7/02 ,  F28F20090101 ,  F28F1/02 ,  F28F1/08

Abstract: Process and apparatus for the continuous preparation of a chemical compound in at least one reactor, where at least one of the reactors is a shell-and-tube reactor which has a shell and at least one internal tube located within the shell, wherein at least one of the internal tubes has, at least in part, a noncircular cross section and a helical configuration in the region in which it is surrounded by the shell.

公开(公告)号：ZA200700154B

公开(公告)日：2008-05-28

申请号：ZA200700154

申请日：2007-01-05

Applicant: BASF AG ,  DOW CHEMICAL CO

Inventor： MEINOLF WEIDENBACH ,  HANS-GEORG GOBBEL ,  HENNING SCHULTZ ,  PETER SCHULTZ ,  RENATE PATRASCU ,  MALTE SCHULZ

IPC: C07D20090101

Abstract: A method of separating propylene oxide from a mixture (M) comprising propylene oxide and methanol, said method comprising: (i) introducing said mixture (M) into an extractive distillation column; (ii) additionally introducing an extracting solvent into said extractive distillation column; (iii) distilling propylene oxide overhead from said extractive distillation column as top stream; (iv) withdrawing a bottoms stream from said extractive distillation column; (v) compressing the top stream obtained overhead in (iii) by means of at least one compressor to give a compressed vapor.

公开(公告)号：ZA200500603B

公开(公告)日：2006-07-26

申请号：ZA200500603

申请日：2005-01-21

Applicant: BASF AG

Inventor： PETER BASSLER ,  PETER RUDOLF ,  JOAQUIM HENRIQUE TELES ,  HANS-GEORG GOBBEL

IPC: C07D20060101 ,  B01D20060101 ,  B01D3/14 ,  C07D301/32