GB1132377A - A process for producing trialkylaluminium and, optionally, isobutene - Google Patents

A process for producing trialkylaluminium and, optionally, isobutene

Info

Publication number
GB1132377A
GB1132377A GB26074/66A GB2607466A GB1132377A GB 1132377 A GB1132377 A GB 1132377A GB 26074/66 A GB26074/66 A GB 26074/66A GB 2607466 A GB2607466 A GB 2607466A GB 1132377 A GB1132377 A GB 1132377A
Authority
GB
United Kingdom
Prior art keywords
aluminium
isobutyl
mixture
butene
isobutene
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
GB26074/66A
Inventor
Ryoma Tanaka
Kiyoshi Toyoshima
Eiichi Ichiki
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to GB26074/66A priority Critical patent/GB1132377A/en
Publication of GB1132377A publication Critical patent/GB1132377A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C11/00—Aliphatic unsaturated hydrocarbons
    • C07C11/02—Alkenes
    • C07C11/08—Alkenes with four carbon atoms
    • C07C11/09—Isobutene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic System
    • C07F5/06—Aluminium compounds
    • C07F5/061—Aluminium compounds with C-aluminium linkage
    • C07F5/062—Al linked exclusively to C

Abstract

1,132,377. Trialkyl aluminium. SUMITOMO CHEMICAL CO. Ltd. 10 June, 1966, No. 26074/66. Heading C2J. [Also in Division C5] A trialkyl aluminium in which the alkyl group is principally 2-ethylhexyl, is produced in a three-step process. In the first step a butanebutene mixture (generally a C 4 fraction from petroleum which preferably contains at least 10% of 1-butene and isobutene and less than 1% of butadiene) is heated in the presence of an alkyl aluminium compound (which is preferably a trialkyl aluminium or dialkyl-aluminium hydride where the alkyl group is isobutyl, nbutyl or octyl), the molar ratio of 1-butene to alkyl aluminium being between 5 and 50 to 1, the temperature 130-220‹ C. and the pressure from 5-100 Kg/cm.<SP>2</SP> gauge until the 1-butene has dimerized, mainly to 2-ethylhexene. The octenes formed are separated from the unreacted hydrocarbon mixture. In the second step, the octene mixture is reacted with an isobutyl aluminium compound (preferably triisobutyl aluminium, diisobutyl aluminium hydride or a mixture thereof) at a temperature of 80-170‹ C. under reflux in an inert hydrocarbon solvent which preferably has a boiling-point below 130‹ C. (e.g. octane, heptane, hexane, pentane, cyclohexane, benzene or toluene) to form the trialkyl aluminium, the alkyl groups of which are principally 2-ethyl hexyl. In the third and optional step, the butane-butene mixture separated in step one is reacted with di-isobutyl aluminium hydride to convert the isobutene in the mixture to tri-isobutyl aluminium, which is separated from the butenebutane hydrocarbon mixture and heated to produce isobutene and di-isobutyl aluminium hydride. The isobutyl aluminium compound used in the second step may be the one produced in the third step and the di-isobutyl aluminium hydride used in the third step may be prepared by reaction of the tri-isobutyl aluminium produced in the third step with aluminium or an aluminium alloy.
GB26074/66A 1966-06-10 1966-06-10 A process for producing trialkylaluminium and, optionally, isobutene Expired GB1132377A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26074/66A GB1132377A (en) 1966-06-10 1966-06-10 A process for producing trialkylaluminium and, optionally, isobutene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26074/66A GB1132377A (en) 1966-06-10 1966-06-10 A process for producing trialkylaluminium and, optionally, isobutene

Publications (1)

Publication Number Publication Date
GB1132377A true GB1132377A (en) 1968-10-30

Family

ID=10237941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26074/66A Expired GB1132377A (en) 1966-06-10 1966-06-10 A process for producing trialkylaluminium and, optionally, isobutene

Country Status (1)

Country Link
GB (1) GB1132377A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998008852A1 (en) * 1996-08-30 1998-03-05 Albemarle Corporation Production and utilization of tri-(beta-branched alkyl)aluminum compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998008852A1 (en) * 1996-08-30 1998-03-05 Albemarle Corporation Production and utilization of tri-(beta-branched alkyl)aluminum compounds

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