公开(公告)号：DE10135716A1

公开(公告)日：2003-02-06

申请号：DE10135716

申请日：2001-07-21

Applicant: BASF AG

Inventor： RUMPF BERND ,  KINNER FRANK ,  LAAS HARALD ,  ERDEN JENS VON

IPC: B01D1/06 ,  B01D3/32 ,  B01D1/22

Abstract: Falling film evaporator system for distillative mixture separation, comprises one or more heat exchangers are integrated directly into the vapor chamber (2) of the falling film evaporator (1). An Independent claim is also included for a method of separating a distillative mixture.

公开(公告)号：CA2454367A1

公开(公告)日：2003-02-13

申请号：CA2454367

申请日：2002-07-09

Applicant: BASF AG

Inventor： RUMPF BERND ,  LAAS HARALD ,  VON ERDEN JENS ,  KINNER FRANK

IPC: B01D1/00 ,  B01D1/22 ,  B01D3/14 ,  C07D311/72

Abstract: The invention relates to a method for treating a product stream containing vitamin E acetate, consisting of the following stages: a) the product stream is fed to a thin-film evaporator, falling-film evaporator or flash evaporato r and a stream predominantly containing vitamin E acetate is drawn off as a bottom stream from said evaporator; b) the vapour stream from stage a) is fe d to a partial condensation consisting of at least two stages. The invention also relates to falling-film evaporators for separating substance mixtures, whereby one or more heat exchangers are directly integrated into the vapour chamber of the falling-film evaporator.

公开(公告)号：DE10135714A1

公开(公告)日：2003-02-06

申请号：DE10135714

申请日：2001-07-21

Applicant: BASF AG

Inventor： LAAS HARALD ,  ERDEN JENS VON ,  KINNER FRANK ,  RUMPF BERND

IPC: B01D1/00 ,  B01D1/22 ,  B01D3/14 ,  C07D311/72

Abstract: Processing of a vitamin E-acetate containing product stream, comprises: (1) feeding a product stream to a thin-film evaporator, falling film evaporator or flash evaporator where the sump stream predominantly comprises vitamin E-acetate; and (2) subjecting the evaporated stream from step (A) to an at least two step partial condensation.