GB700187A - Improvements in and relating to the production of aromatic hydrocarbons - Google Patents

Improvements in and relating to the production of aromatic hydrocarbons

Info

Publication number
GB700187A
GB700187A GB128251A GB128251A GB700187A GB 700187 A GB700187 A GB 700187A GB 128251 A GB128251 A GB 128251A GB 128251 A GB128251 A GB 128251A GB 700187 A GB700187 A GB 700187A
Authority
GB
United Kingdom
Prior art keywords
diol
ene
conversion
dehydration
vapour phase
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
GB128251A
Inventor
Arthur William James Taylor
David Gwyn Jones
Morag Lauchlan Noble
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB128251A priority Critical patent/GB700187A/en
Publication of GB700187A publication Critical patent/GB700187A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/067—C8H10 hydrocarbons
    • C07C15/08—Xylenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
    • C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
    • C07C5/41—Catalytic processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Aromatic hydrocarbons are produced by contacting a triene having at least 6 carbon atoms in a straight chain, in the vapour phase at elevated temperature with an aromatization catalyst. Catalysts and reaction conditions specified are those described in Specification 702,360. p-Xylene is prepared from 2,5-dimethylhexa-1,3,5-triene which can be obtained from 2,5-dimethylhex-3-yne-2,5-diol, produced by condensing acetone and acetylene, as follows: (a) partial hydrogenation of the yne-diol to the ene-diol and catalytic dehydration in vapour phase; (b) conversion of the ene-diol formed as in (a) to the dichlor derivative followed by dihydrochlorination; (c) conversion of the ene-diol to a di-ester, and thermal decomposition of this; (d) dehydration of the ene-diol to 2,2,5,5-tetramethyl-2,5-dihydrofuran with a dehydrating agent and catalytic vapour phase dehydration of the latter. Conditions are generally those described in the Specification above referred to for conversion of the corresponding ane-diol to a diene.
GB128251A 1951-01-17 1951-01-17 Improvements in and relating to the production of aromatic hydrocarbons Expired GB700187A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB128251A GB700187A (en) 1951-01-17 1951-01-17 Improvements in and relating to the production of aromatic hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB128251A GB700187A (en) 1951-01-17 1951-01-17 Improvements in and relating to the production of aromatic hydrocarbons

Publications (1)

Publication Number Publication Date
GB700187A true GB700187A (en) 1953-11-25

Family

ID=9719263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB128251A Expired GB700187A (en) 1951-01-17 1951-01-17 Improvements in and relating to the production of aromatic hydrocarbons

Country Status (1)

Country Link
GB (1) GB700187A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043925A1 (en) * 1980-07-11 1982-01-20 BASF Aktiengesellschaft Process for the preparation of o-xylene and ethyl benzene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043925A1 (en) * 1980-07-11 1982-01-20 BASF Aktiengesellschaft Process for the preparation of o-xylene and ethyl benzene

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