GB1129279A - Production of hexamethylene oxide - Google Patents

Production of hexamethylene oxide

Info

Publication number
GB1129279A
GB1129279A GB51328/66A GB5132866A GB1129279A GB 1129279 A GB1129279 A GB 1129279A GB 51328/66 A GB51328/66 A GB 51328/66A GB 5132866 A GB5132866 A GB 5132866A GB 1129279 A GB1129279 A GB 1129279A
Authority
GB
United Kingdom
Prior art keywords
aluminium
weight
oxide
catalysts
chromate
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
GB51328/66A
Inventor
Karl Adam
Erich Haarer
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1129279A publication Critical patent/GB1129279A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D313/00—Heterocyclic compounds containing rings of more than six members having one oxygen atom as the only ring hetero atom
    • C07D313/02—Seven-membered rings
    • C07D313/04—Seven-membered rings not condensed with other rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
    • C07D309/04—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having no double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,129,279. Hexamethylene oxide. BADISCHE ANILIN- & SODA-FABRIK A.G. 16 Nov., 1966 [17 Nov., 1965], No. 51328/66. Heading C2C. Hexamethylene oxide is made by dehydrating hexane-diol-(1,6) at elevated temperatures in the presence of solid dehydration catalysts the reaction of the starting material being incomplete. The catalyst is preferably non- alkaline and porous. Numerous catalysts are specified including porous materials impregnated with dehydrating agents such as sulphuric acid. Advantageously conversions of 20-88% are effected. Reaction may be effected in an inert diluent especially water c.f. Specification 1,129,280 and 1,095,779. Advisably an inert gas, e.g. nitrogen or hydrogen, should be present. 2-Methyltetrahydropyran, polyhexamethylene oxide and hexenol-(1,6), the latter especially when catalysts containing vanadium are used, may be obtained as by-products. Examples are provided the catalysts used being (1) active aluminium oxide with 20% by weight aluminium chromate, (2) and (3) aluminium oxide containing 0À5% by weight of copper chromite, (4) aluminium oxide containing 20% by weight of aluminium chromate and 10% of boric acid, (5) aluminium phosphate containing 0À5% by weight of vanadium (as vanadium pentoxide) and (6) aluminium hydroxide containing 20% by weight of aluminium chromate and 0À5% of tungsten (as tungstic acid).
GB51328/66A 1965-11-17 1966-11-16 Production of hexamethylene oxide Expired GB1129279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB0084536 1965-11-17

Publications (1)

Publication Number Publication Date
GB1129279A true GB1129279A (en) 1968-10-02

Family

ID=6982473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51328/66A Expired GB1129279A (en) 1965-11-17 1966-11-16 Production of hexamethylene oxide

Country Status (4)

Country Link
BE (1) BE689744A (en)
FR (1) FR1499784A (en)
GB (1) GB1129279A (en)
NL (1) NL6616107A (en)

Also Published As

Publication number Publication date
BE689744A (en) 1967-05-16
NL6616107A (en) 1967-05-18
FR1499784A (en) 1967-10-27

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