Title:
ISOLATION AND RECOVERY METHOD AND ISOLATION AND RECOVERY DEVICE FOR 1,3-BUTADIENE
Document Type and Number:
WIPO Patent Application WO/2018/143042
Kind Code:
A1
Abstract:
Provided is an isolation and recovery method for 1,3-butadiene. The method makes it possible to reduce the amount of polymers of 1,3-butadiene generated when 1,3-butadiene is isolated and recovered from a mixed fluid that includes 1,3-butadiene. According to this isolation and recovery method for 1,3-butadiene, 1,3-butadiene is isolated and recovered from a mixed fluid that includes 1,3-butadiene. The method includes: an extraction distillation step for extraction distilling the mixed fluid to obtain a fraction that includes crude 1,3-butadiene; and a fractional distillation step for fractionally distilling the fraction that includes the crude 1,3-butadiene to obtain a fraction that includes impurities that have a higher boiling point than 1,3-butadiene, a fraction that includes impurities that have a lower boiling point than 1,3-butadiene, and a fraction that includes high-purity 1,3-butadiene.
Inventors:
KANAUCHI MASANOBU (JP)
FUTAMURA SEIJI (JP)
OTSUBO KENICHI (JP)
FUTAMURA SEIJI (JP)
OTSUBO KENICHI (JP)
Application Number:
PCT/JP2018/002239
Publication Date:
August 09, 2018
Filing Date:
January 25, 2018
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C07C7/04; B01D3/14; B01D3/40; C07C11/167
Foreign References:
| JP2002053871A | 2002-02-19 | |||
| JP2008515953A | 2008-05-15 | |||
| JP2016524522A | 2016-08-18 | |||
| JPS4517407B1 | ||||
| JP2003103106A | 2003-04-08 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
Download PDF: