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GB935631A - Process for the preparation of isoprene - Google Patents

Process for the preparation of isoprene

Info

Publication number
GB935631A
GB935631A GB798062A GB798062A GB935631A GB 935631 A GB935631 A GB 935631A GB 798062 A GB798062 A GB 798062A GB 798062 A GB798062 A GB 798062A GB 935631 A GB935631 A GB 935631A
Authority
GB
United Kingdom
Prior art keywords
vol
isoprene
preparation
seconds
contact time
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
GB798062A
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.)
Laboratori Riuniti Studi E Ricerche SpA
Original Assignee
Laboratori Riuniti Studi E Ricerche SpA
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 Laboratori Riuniti Studi E Ricerche SpA filed Critical Laboratori Riuniti Studi E Ricerche SpA
Publication of GB935631A publication Critical patent/GB935631A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/24—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms by elimination of water
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Isoprene is obtained by contacting 2-methyl-3-buten-2-ol with alumina having a surface area greater than 200 m2./g. at 260 DEG -270 DEG C. for 1-5 seconds. The space velocity may be 1,7-1,8 vol./vol./hr. using fixed beds (contact time 3-5 seconds) or 10-15 vol./vol./hr. using fluidized beds (contact time about 1 second). Atmospheric pressure is used.
GB798062A 1961-03-03 1962-03-01 Process for the preparation of isoprene Expired GB935631A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT397261 1961-03-03

Publications (1)

Publication Number Publication Date
GB935631A true GB935631A (en) 1963-09-04

Family

ID=11111977

Family Applications (2)

Application Number Title Priority Date Filing Date
GB798062A Expired GB935631A (en) 1961-03-03 1962-03-01 Process for the preparation of isoprene
GB1211562A Expired GB936061A (en) 1961-03-03 1962-03-29 Stereospecific catalysts for the polymerisation of butadiene and isoprene

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1211562A Expired GB936061A (en) 1961-03-03 1962-03-29 Stereospecific catalysts for the polymerisation of butadiene and isoprene

Country Status (5)

Country Link
CH (1) CH407981A (en)
DE (2) DE1284417B (en)
GB (2) GB935631A (en)
LU (1) LU41324A1 (en)
NL (1) NL277984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900025000A1 (en) 2019-12-20 2021-06-20 Versalis Spa PROCEDURE FOR THE PRODUCTION OF DIENES.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967897A (en) * 1957-11-13 1961-01-10 Monsanto Chemicals Isoprene preparation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900025000A1 (en) 2019-12-20 2021-06-20 Versalis Spa PROCEDURE FOR THE PRODUCTION OF DIENES.
US11851385B2 (en) 2019-12-20 2023-12-26 Versalis S.P.A. Process for producing dienes

Also Published As

Publication number Publication date
GB936061A (en) 1963-09-04
CH407981A (en) 1966-02-28
NL277984A (en)
LU41324A1 (en) 1962-05-02
DE1284417B (en) 1968-12-05
DE1164668B (en) 1964-03-05

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