DE824038C - Process for the production of isobutyl alcohol - Google Patents

Process for the production of isobutyl alcohol

Info

Publication number
DE824038C
DE824038C DEB611A DEB0000611A DE824038C DE 824038 C DE824038 C DE 824038C DE B611 A DEB611 A DE B611A DE B0000611 A DEB0000611 A DE B0000611A DE 824038 C DE824038 C DE 824038C
Authority
DE
Germany
Prior art keywords
carbon dioxide
isobutyl alcohol
production
reaction
gas
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
DEB611A
Other languages
German (de)
Inventor
Dr Felix Duerr
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
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 filed Critical BASF SE
Priority to DEB611A priority Critical patent/DE824038C/en
Application granted granted Critical
Publication of DE824038C publication Critical patent/DE824038C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1512—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by reaction conditions
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/1516—Multisteps
    • C07C29/1518—Multisteps one step being the formation of initial mixture of carbon oxides and hydrogen for synthesis
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/15—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively
    • C07C29/151—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
    • C07C29/153—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases characterised by the catalyst used

Landscapes

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

Description

Verfahren zur Herstellung von Isobutylalkohol Es ist bekannt, daß man bei der katalytischen Umsetzung von Kohlenoxyd mit Wasserstoff zu Alkoholen einen erhöhten Gehalt an Isobutylalkohol im flüssigen Produkt erhält, wenn man aus den den Reaktionsraum verlassenden und in diesen wieder zufiückzuführenden Gasen das Kohlendioxyd weitgehend entfernt.Process for the preparation of isobutyl alcohol It is known that one in the catalytic conversion of carbon monoxide with hydrogen to alcohols an increased content of isobutyl alcohol in the liquid product is obtained when one goes out the gases leaving the reaction space and being fed back into it the carbon dioxide is largely removed.

Es wurde nun gefunden, daß die Entfernung des Kohlendioxyds aus dem Gas besonders vorteilhaft und einfach durch Auswaschung mit den bei der Umsetzung von Kohlenoxyd mit Wasserstoff gewonnenen Produkten geschieht. Man erhält so ein Alkoholgemisch, das 14°/° und mehr Isobutylalkohol enthält, während ohne Auswaschung des Kohlendioxyds ein Alkoholgemisch mit nur etwa io bis 12% Isobutylalkohol entsteht.It has now been found that the removal of carbon dioxide from the Gas particularly advantageous and easy by washing out with the in the implementation from carbon dioxide with hydrogen produced products happens. You get one like that Alcohol mixture, which contains 14% and more isobutyl alcohol, while without leaching The carbon dioxide produces an alcohol mixture with only about 10 to 12% isobutyl alcohol.

Die Auswaschung wird vorteilhaft in einem, zweckmäßig hinter einem Kühler, angeordneten Gefäß vorgenommen, in dem sich flüssige und gasförmige Produkte trennen. Dieses Abscheidegefäß kann so gestaltet werden, daß es gleichzeitig als Waschturm dient.The washout is beneficial in one, expedient behind one Cooler, arranged vessel made in which liquid and gaseous products are separate. This separation vessel can be designed so that it is at the same time Wash tower is used.

Der Kohlendioxydgehalt des aus dem Reaktionsraum austretenden und in diesen wieder zurückzuführenden Gases wird zweckmäßig auf weniger als 20/0 verringert. Die Ausbeute an Isobutylöl wird noch gesteigert, wenn man das Kohlendioxyd so weit auswäscht, daß das Gas weniger als i0/0, insbesondere weniger als o,5°/0, davon enthält.The carbon dioxide content of the exiting from the reaction chamber and this gas to be recycled is expediently reduced to less than 20/0. The yield of isobutyl oil is increased if the carbon dioxide is used so far washes out that the gas is less than 10/0, in particular less than 0.5% of it contains.

Beispiel Bei einem Druck von 25o at und einer Temperatur von 43o° wird ein Gasgemisch, das Kohlenoxyd und Wasserstoff im Verhältnis i : 3,5 enthält, über einen alkalisierten Zinkchromkatalysator geleitet. Das aus dem Reaktionsraum austretende Gas-Dampf-Gemisch durchströmt einen Kühler und tritt dann in ein Abscheidegefäß ein, in dem das Gas mit Hilfe des flüssigen Produktes ausgewaschen wird. Der Kohlendioxyd- Behalt des ins Reaktionsgefäß zurückzuführenden Gases verringert sich dadurch auf etwas i0/0. Man erhält ein Alkoholgemisch (rohes Isobutylöl), das etwa 14% Isobutylalkohol enthält.Example At a pressure of 25o at and a temperature of 43o ° becomes a gas mixture, which contains carbon oxide and hydrogen in the ratio i: 3.5, passed over an alkalized zinc chromium catalyst. That from the reaction room escaping gas-vapor mixture flows through a cooler and then enters a separation vessel one in which the gas is washed out with the help of the liquid product. The carbon dioxide Keep of the gas to be returned to the reaction vessel is reduced to a little i0 / 0. An alcohol mixture (crude isobutyl oil) is obtained which contains about 14% isobutyl alcohol contains.

Arbeitet man in derselben Weise, aber ohne Auswaschung des Kohlendioxyds aus dem Kreislaufgas, so beträgt der Isobutylalkoholgehalt des gewonnenen rohen Isobutylöles nur 11,60/0.If you work in the same way, but without washing out the carbon dioxide from the cycle gas, the isobutyl alcohol content of the raw material obtained is Isobutyl oil only 11.60 / 0.

Claims (2)

PATG\TAVSPRI'CHE: i. Verfahren zur Herstellung von Isobutylalkohol durch katalytische Umsetzung von Kohlenoxyd mit Wasserstoff unter Druck und bei erhöhter Temperatur unter weitgehender Entfernung von Kohlendioxyd aus dem den Reaktionsraum verlassenden Gas vor seiner Rückführung in das Reaktionsgefäß, dadurch gekennzeichnet, daß man das Kohlendioxyd mit Hilfe des bei der Umsetzung gewonnenen flüssigen Produktes auswäscht. PATG \ TAVPRI'CHE: i. Process for the production of isobutyl alcohol by catalytic conversion of carbon oxide with hydrogen under pressure and with elevated temperature with extensive removal of carbon dioxide from the reaction space leaving gas before it is returned to the reaction vessel, characterized in that that the carbon dioxide with the help of the liquid product obtained in the reaction washes out. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß das Auswaschen des Kohlendioxyds in einem einem Kühler nachgeschalteten Abscheidegefäß vorgenommen wird.2. The method according to claim i, characterized in that the washing out of the carbon dioxide is carried out in a separator vessel connected downstream of a cooler will.
DEB611A 1949-11-10 1949-11-10 Process for the production of isobutyl alcohol Expired DE824038C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB611A DE824038C (en) 1949-11-10 1949-11-10 Process for the production of isobutyl alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB611A DE824038C (en) 1949-11-10 1949-11-10 Process for the production of isobutyl alcohol

Publications (1)

Publication Number Publication Date
DE824038C true DE824038C (en) 1951-12-10

Family

ID=6951937

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB611A Expired DE824038C (en) 1949-11-10 1949-11-10 Process for the production of isobutyl alcohol

Country Status (1)

Country Link
DE (1) DE824038C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119306A1 (en) * 1980-05-16 1982-03-04 Snamprogetti S.p.A., Milano METHOD FOR PRODUCING A MIXTURE OF METHANOL AND HIGHER ALCOHOLS SUITABLE FOR FUEL
DE3119290A1 (en) * 1980-05-16 1982-03-18 Snamprogetti S.p.A., Milano METHOD FOR PRODUCING A MIXTURE OF METHANOL AND HIGHER ALCOHOLS SUITABLE FOR FUEL

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3119306A1 (en) * 1980-05-16 1982-03-04 Snamprogetti S.p.A., Milano METHOD FOR PRODUCING A MIXTURE OF METHANOL AND HIGHER ALCOHOLS SUITABLE FOR FUEL
DE3119290A1 (en) * 1980-05-16 1982-03-18 Snamprogetti S.p.A., Milano METHOD FOR PRODUCING A MIXTURE OF METHANOL AND HIGHER ALCOHOLS SUITABLE FOR FUEL

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