DE568546C - Process for the production of acetoaethyl alcohol - Google Patents

Process for the production of acetoaethyl alcohol

Info

Publication number
DE568546C
DE568546C DEI42325D DEI0042325D DE568546C DE 568546 C DE568546 C DE 568546C DE I42325 D DEI42325 D DE I42325D DE I0042325 D DEI0042325 D DE I0042325D DE 568546 C DE568546 C DE 568546C
Authority
DE
Germany
Prior art keywords
alcohol
production
acetoaethyl
under reduced
reduced pressure
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
DEI42325D
Other languages
German (de)
Inventor
Dr Josef Hilger
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI42325D priority Critical patent/DE568546C/en
Application granted granted Critical
Publication of DE568546C publication Critical patent/DE568546C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/002—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by dehydrogenation

Landscapes

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

Description

Verfahren zur Herstellung von Acetoäthylalkohol Behandelt man t # 3-Butylenglykol in der Gasphase mit dehydrierenden Mitteln, so erhält man nach der Literatur Methyläthylketon.Process for the preparation of acetoethyl alcohol If one treats t # 3-Butylene glycol in the gas phase with dehydrating agents is obtained after Literature methyl ethyl ketone.

Es wurde nun gefunden, daB bei dem Arbeiten unter vermindertem Druck die Reaktion in anderer Richtung verläuft und als Hauptprodukt der Acetoäthylalkohol entsteht, der Verwendung z. B. als Zwischenprodukt für die Herstellung von Kunststoffen findet.It has now been found that when working under reduced pressure the reaction proceeds in the other direction and the main product is acetoethyl alcohol arises, the use z. B. as an intermediate product for the manufacture of plastics finds.

Beispiel Über einen Katalysator, der durch Auftragen von gefälltem basischem Kupfercarbonat mit Wasserglas auf einem Träger und darauffolgende Trocknung und Reduktion im Wasserstoffstrom bei etwa i So' erhalten wurde, leitet man einen Strom von t # 3-Butylen,-glykoldampf (l/41,-- pro Stunde und Liter Kontaktraum) bei Zoo bis 22o° und einem Quecksilberdruck von 25 mm. Die den Kontaktraum verlassenden Produkte werden kondensiert und enthalten neben Ausgangsmaterial, das dem ReaktionsprozeB im Kreislauf wieder zugeführt werden kann, in guter Ausbeute Acetoäthylall:ohol neben geringen Mengen von Nebenprodukten.Example of a catalyst that is produced by the application of precipitated basic copper carbonate with water glass on a support and subsequent drying and reduction in a stream of hydrogen at about i So ', one conducts one Stream of t # 3-butylene, -glycol vapor (l / 41, - per hour and liter of contact space) at zoo up to 22o ° and a mercury pressure of 25 mm. Those leaving the contact area Products are condensed and, in addition to starting material, they contain the reaction process can be fed back in the circuit, in good yield Acetoäthylall: ohol besides small amounts of by-products.

Zu ähnlichen Ergebnissen kommt man auch, nenn man Katalysatoren ohne Träger verwendet und bei Abwesenheit alkalisch wirkender Substanzen arbeitet.One also comes to similar results if one calls catalysts without Carrier used and works in the absence of alkaline substances.

Claims (1)

PATENTAS SPRUCÜ Verfahren zur Herstellung von Acetoäthylalkohol, dadurch gekennzeichnet, daB man t . 3-Butylenglykol unter vermindertem Druck in Dampfform mit dehydrierend «wirkenden Katalysatoren behandelt.PATENTAS SPRUCÜ Process for the production of acetoethyl alcohol, thereby marked that one t. 3-butylene glycol under reduced pressure in vapor form treated with dehydrogenating catalysts.
DEI42325D 1931-08-13 1931-08-14 Process for the production of acetoaethyl alcohol Expired DE568546C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI42325D DE568546C (en) 1931-08-13 1931-08-14 Process for the production of acetoaethyl alcohol

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE386897X 1931-08-13
DEI42325D DE568546C (en) 1931-08-13 1931-08-14 Process for the production of acetoaethyl alcohol

Publications (1)

Publication Number Publication Date
DE568546C true DE568546C (en) 1933-01-21

Family

ID=25876239

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI42325D Expired DE568546C (en) 1931-08-13 1931-08-14 Process for the production of acetoaethyl alcohol

Country Status (1)

Country Link
DE (1) DE568546C (en)

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