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SG11201906702RA - Isoprene separation and recovery method and isoprene separation and recovery apparatus - Google Patents

Isoprene separation and recovery method and isoprene separation and recovery apparatus

Info

Publication number
SG11201906702RA
SG11201906702RA SG11201906702RA SG11201906702RA SG11201906702RA SG 11201906702R A SG11201906702R A SG 11201906702RA SG 11201906702R A SG11201906702R A SG 11201906702RA SG 11201906702R A SG11201906702R A SG 11201906702RA SG 11201906702R A SG11201906702R A SG 11201906702RA
Authority
SG
Singapore
Prior art keywords
isoprene
fraction containing
separation
recovery
impurity
Prior art date
Application number
SG11201906702RA
Inventor
Masanobu Kanauchi
Seiji Futamura
Kenichi Otsubo
Original Assignee
Zeon Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zeon Corp filed Critical Zeon Corp
Publication of SG11201906702RA publication Critical patent/SG11201906702RA/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/40—Extractive distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/12—Alkadienes
    • C07C11/173—Alkadienes with five carbon atoms
    • C07C11/18—Isoprene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Provided is an isoprene separation and recovery method that can reduce the amount of polymer of isoprene that is produced during separation 5 and recovery of isoprene from a mixed fluid containing isoprene. The isoprene separation and recovery method for separating and recovering isoprene from a mixed fluid containing isoprene includes: an extractive distillation step of performing extractive distillation of the mixed fluid to obtain a fraction containing an impurity having lower solubility than isoprene in an extractant 10 used in the extractive distillation and a fraction containing crude isoprene; and a dividing wall distillation step of performing dividing wall distillation of the fraction containing crude isoprene to obtain a fraction containing an impurity having a higher boiling point than isoprene, a fraction containing an impurity having a lower boiling point than isoprene, and a fraction containing 15 high-purity isoprene.
SG11201906702RA 2017-02-01 2018-01-25 Isoprene separation and recovery method and isoprene separation and recovery apparatus SG11201906702RA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017017006 2017-02-01
PCT/JP2018/002236 WO2018143041A1 (en) 2017-02-01 2018-01-25 Isolation and recovery method and isolation and recovery device for isoprene

Publications (1)

Publication Number Publication Date
SG11201906702RA true SG11201906702RA (en) 2019-08-27

Family

ID=63039577

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201906702RA SG11201906702RA (en) 2017-02-01 2018-01-25 Isoprene separation and recovery method and isoprene separation and recovery apparatus

Country Status (3)

Country Link
JP (1) JP7216278B2 (en)
SG (1) SG11201906702RA (en)
WO (1) WO2018143041A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879932A (en) * 1981-11-06 1983-05-13 Japan Synthetic Rubber Co Ltd Butadiene or isoprene purification method
JP2002053871A (en) * 2000-08-07 2002-02-19 Nippon Zeon Co Ltd Method and apparatus for separating and purifying conjugated dienes
JP4848112B2 (en) * 2001-09-28 2011-12-28 住友化学株式会社 Distillation method of easily polymerizable substances
DE102004049940A1 (en) * 2004-10-13 2006-04-20 Basf Ag Process for the preparation of a C4-olefin mixture by selective hydrogenation and metathesis processes using this stream
DE102013207282A1 (en) * 2013-04-22 2014-11-06 Wacker Chemie Ag Process and apparatus for the distillative separation of a three- or multi-component mixture

Also Published As

Publication number Publication date
WO2018143041A1 (en) 2018-08-09
JPWO2018143041A1 (en) 2019-11-14
JP7216278B2 (en) 2023-02-01

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