GB1113279A - Isoprene purification process - Google Patents

Isoprene purification process

Info

Publication number
GB1113279A
GB1113279A GB4404165A GB4404165A GB1113279A GB 1113279 A GB1113279 A GB 1113279A GB 4404165 A GB4404165 A GB 4404165A GB 4404165 A GB4404165 A GB 4404165A GB 1113279 A GB1113279 A GB 1113279A
Authority
GB
United Kingdom
Prior art keywords
solvent
extract
separated
isoprene
methylethylacetylene
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB4404165A
Inventor
Arthur Benjamin Hill
David Crosby Parnell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB4404165A priority Critical patent/GB1113279A/en
Publication of GB1113279A publication Critical patent/GB1113279A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Isoprene is separated from a C5 hydrocarbon mixture by a straight distillation followed by two extraction distillations; in the straight distillation isopropylacetylene, dimethylacetylene, methylethylacetylene and pentadiene-1,4 are separated overhead, the bottoms are extractively distilled to separate C5 mono-olefins and the extract is extractively distilled in the presence of further solvent to separate isoprene as overhead from methylethylacetylene, cyclopentadiene, propylacetylene, piperylene and allylacetylene in the extract. The solvent may be acetone or acetonitrile and may contain water. The extract is preferably removed near the bottom of extractive distillation columns, the solvent separated and returned to the bottom of the extraction column and bottoms then recycled from the bottom to the top to supply the solvent.
GB4404165A 1965-10-18 1965-10-18 Isoprene purification process Expired GB1113279A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4404165A GB1113279A (en) 1965-10-18 1965-10-18 Isoprene purification process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4404165A GB1113279A (en) 1965-10-18 1965-10-18 Isoprene purification process

Publications (1)

Publication Number Publication Date
GB1113279A true GB1113279A (en) 1968-05-08

Family

ID=10431482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4404165A Expired GB1113279A (en) 1965-10-18 1965-10-18 Isoprene purification process

Country Status (1)

Country Link
GB (1) GB1113279A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055281C (en) * 1996-03-20 2000-08-09 中国石油化工总公司 Method for separation of petroleum cracking C5 fraction by liquid phase feeding extraction rectification
CN1331830C (en) * 2004-12-24 2007-08-15 中国石化上海石油化工股份有限公司 Refining separation method for coarse piperyene
CN110498726A (en) * 2018-05-18 2019-11-26 抚顺伊科思新材料有限公司 The extractant modified technique of acetonitrile method light dydrocarbon separation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055281C (en) * 1996-03-20 2000-08-09 中国石油化工总公司 Method for separation of petroleum cracking C5 fraction by liquid phase feeding extraction rectification
CN1331830C (en) * 2004-12-24 2007-08-15 中国石化上海石油化工股份有限公司 Refining separation method for coarse piperyene
CN110498726A (en) * 2018-05-18 2019-11-26 抚顺伊科思新材料有限公司 The extractant modified technique of acetonitrile method light dydrocarbon separation

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