公开(公告)号：DE19542829A1

公开(公告)日：1997-05-22

申请号：DE19542829

申请日：1995-11-17

Applicant: BASF AG

Inventor： BESLING BERND ,  ZECK SEBASTIAN DR ,  PLUECKHAN JUERGEN DR ,  MAYER THOMAS ,  LOEFFLER ULRICH DR ,  SPIEGEL GUENTER DR ,  BALLENWEG RUBENS ,  BRUDI GERHARD ,  GIESELBERG KLAUS DR ,  HILPRECHT LUTZ DR ,  TERJUNG WINFRIED ,  AUER HEINZ ,  POLT AXEL WERNER DR ,  SCHOLL STEPHAN DR

IPC: B01D3/00 ,  B01D3/16 ,  C07D301/32 ,  C07D303/02 ,  C07D303/04 ,  B01D3/14

Abstract: A process is proposed for distilling ethylene oxide from a mixture containing ethylene oxide in a column at an absolute pressure of 2-10 bar and a temperature of 20-180 DEG C; pure ethylene oxide is removed at the top or through a side discharge in the column and distillation takes place in a column divided up internally into a number of successive zones with structured sheet metal packs or piles of fillers, one or more quenching systems located outside the column being allocated to said zones.

公开(公告)号：DE19602640A1

公开(公告)日：1997-07-31

申请号：DE19602640

申请日：1996-01-25

Applicant: BASF AG

Inventor： MOHR JUERGEN DR ,  VANSANT FRANS ,  POLT AXEL WERNER DR ,  SCHOLL STEPHAN DR ,  KRUEGER SIEGFRIED ,  STAATZ HARTMUT DR

IPC: B01D1/22 ,  B01D1/06 ,  C07B63/00 ,  B01D1/00 ,  B01D3/00

Abstract: The invention concerns a method of vaporizing a fluid containing vaporizable oxidation-sensitive compounds in a vaporizer in which, for vaporization purposes, the fluid is brought into contact with a heated solid surface, direct contact between the resultant vapour phase and the heated solid surface being largely prevented. The invention further concerns a vaporizer comprising a heatable solid surface (16), a device (2, 3) for heating the solid surface, and a device (10) for feeding a fluid containing vaporizable compounds to the heatable solid surface. The fluid-feeding device is designed and disposed (12, 14, 18) in the vaporizer such that direct contact between the resultant vapour phase and the heatable solid surface is largely prevented.