Title:
C4-留分から抽出蒸留により粗1,3-ブタジエンを取得する方法
Document Type and Number:
Japanese Patent JP4266636
Kind Code:
B2
Abstract:
A process for recovering crude 1,3-butadiene from a C4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.
Inventors:
Gerd Bonner
Claus kindler
Melanie Pearl
Gerd Kybel
Claus kindler
Melanie Pearl
Gerd Kybel
Application Number:
JP2002562695A
Publication Date:
May 20, 2009
Filing Date:
February 06, 2002
Export Citation:
Assignee:
BASF SE
International Classes:
C07C7/08; B01D3/40; C07C11/167
Domestic Patent References:
| JP60104021A | ||||
| JP53147004A | ||||
| JP11314002A | ||||
| JP63208628A | ||||
| JP58032685A | ||||
| JP63255239A | ||||
| JP2004513931A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel