Patent Number: 6,254,735

Title: Process for separating medium boiling substances from a mixture of low, medium and high boiling substances

Abstract: A process for separating a fraction containing low and middle boilers from a mixture of low, middle and high boilers, which involves treating the mixture in a column with low-boiler vapor in the bottom, so that the middle-boiling component accumulates in the low-boiler vapor and can be obtained at the temperature level of the low-boiling component.

Inventors: Watzenberger; Otto (Ludwigshafen, DE)

Assignee: BASF Aktiengesellschaft

International Classification: B01D 3/34 (20060101); B01D 3/14 (20060101); B01D 3/38 (20060101); C01B 21/00 (20060101); C01B 21/14 (20060101); B01D 003/00 (); C01B 021/14 ()

Expiration Date: 07/03/2018