DE545849C - Process for the production of butyl alcohol - Google Patents
Process for the production of butyl alcoholInfo
- Publication number
- DE545849C DE545849C DE1930545849D DE545849DD DE545849C DE 545849 C DE545849 C DE 545849C DE 1930545849 D DE1930545849 D DE 1930545849D DE 545849D D DE545849D D DE 545849DD DE 545849 C DE545849 C DE 545849C
- Authority
- DE
- Germany
- Prior art keywords
- butyl alcohol
- catalysts
- production
- oxide
- copper oxide
- 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
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
- C07C29/32—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions without formation of -OH groups
- C07C29/34—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring increasing the number of carbon atoms by reactions without formation of -OH groups by condensation involving hydroxy groups or the mineral ester groups derived therefrom, e.g. Guerbet reaction
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 Butylalkohol Die Erfindung betrifft ein Verfahren zur Herstellung von Butylalkohol und höheren Alkoholen und besteht darin, daß Äthylalkoholdampf bei Anwesenheit von aus Magnesium- und Kupferoxyd bestehenden Katalysatoren, die mehr Magnesiumoxyd als Kupferoxyd enthalten, beispielsweise aus 6o bis 8o °/o Magnesiumoxyd und 20 bis 40 °b Kupferoxyd bestehen, auf Temperaturen nicht über 4000, zweckmäßig nicht wesentlich über 3250, unter Druck, vorteilhaft Hochdruck, erhitzt wird. Man erhält dabei ein Reaktionsprodukt, das erhebliche Mengen an Butylalkohol und höheren Alkoholen enthält, die abgetrennt werden können, worauf der nicht umgesetzte Äthylalkohol wieder zur weiteren Umsetzung in Butylalkohol und höhere Alkohole verwendet werden kann.Process for Making Butyl Alcohol The invention relates to a process for the production of butyl alcohol and higher alcohols and consists in the fact that ethyl alcohol vapor in the presence of consisting of magnesium and copper oxide Catalysts that contain more magnesium oxide than copper oxide, for example from 60 to 80 per cent. Magnesium oxide and 20 to 40 per cent. Copper oxide consist of temperatures not more than 4000, expediently not significantly more than 3250, under pressure, advantageous High pressure, is heated. A reaction product is obtained which contains considerable amounts Contains butyl alcohol and higher alcohols, which can be separated, whereupon the unreacted ethyl alcohol again for further conversion into butyl alcohol and higher alcohols can be used.
Es ist bereits vorgeschlagen worden, Butylalkohol dadurch herzustellen, daß man :@thylalkoholdampf bei Gegenwart von Katalysatoren auf Temperaturen von 25o bis 500° erhitzt, und zwar unter Hochdruck. Die bei diesem bekannten Verfahren verwendeten Katalysatoren waren Mischkatalysatoren, die zur Hauptsache aus Kupferoxyd bestanden und einige Prozente Manganoxyd und Magnesiumoxyd enthielten.It has already been proposed to produce butyl alcohol by that one: @thyl alcohol vapor in the presence of catalysts to temperatures of Heated between 25o and 500 °, under high pressure. The in this known method The catalysts used were mixed catalysts, which mainly consisted of copper oxide and contained a few percent manganese oxide and magnesium oxide.
Von diesem bekannten Verfahren unterscheidet sich das Verfahren gemäß der vorliegenden Erfindung durch die Auswahl ganz bestimmter Katalysatoren, nämlich durch Verwendung von Mischkatalysatoren aus Kupferoxyd und Magnesiumoxyd, die mehr Magnesiumoxyd als Kupferoxyd enthalten. Man erzielt mit diesen, gegebenenfalls auf Trägern angeordneten Mischkatalysatoren, die anscheinend wesentlich wirksamer sind, bessere Ausbeuten an Butylalkohol und höheren Alkoholen als mit den bekannten Katalysatoren.The method according to FIG. 1 differs from this known method of the present invention by the selection of very specific catalysts, viz by using mixed catalysts made of copper oxide and magnesium oxide, which is more Contains magnesium oxide as copper oxide. One achieves with these, if necessary Supported mixed catalysts, which apparently are much more effective, better yields of butyl alcohol and higher alcohols than with the known catalysts.
Beispiel 32o g eines g6°/oigen Äthylalkohols werden mit 50 g eines zu 6o °/a aus Magnesia und zu 40 °/a aus Kupferoxyd bestehenden, in der nachfolgenden Weise hergestellten Katalysators im Autoklaven erhitzt. Handelsübliche Magnesia, die durch Calcinieren von Magnesiumcarbonat hergestellt ist, wird mit der erforderlichen Menge von Kupfernitratlösung versetzt, worauf die Masse zur Trockne verdampft, dann calciniert und gepulvert wird. Nach einQr 'zweis'tüiidigen.Behandlungsdaner des Äthylalkohols mit diesem Katalysator im Autoklaiven ' bei "einer Temperatur von etwa 270° und bei einem Druck von etwa i30 bis r¢o Atm. enthalten die Reaktionsprodukte so viel normalen Butylalkohol, als 30 °/o des Ausgangsmaterials entspricht; weitere r¢ °% des verwendeten Äthylalkohols sind in noch höhere wertvolle Alkohole umgewandelt worden.EXAMPLE 320 g of 6% ethyl alcohol are heated in the autoclave with 50 g of a 60% / a of magnesia and 40% / a of copper oxide catalyst prepared in the following manner. Commercially available magnesia, which is produced by calcining magnesium carbonate, is mixed with the required amount of copper nitrate solution, whereupon the mass is evaporated to dryness, then calcined and powdered. After the ethyl alcohol has been treated with this catalyst in an autoclave at a temperature of about 270 ° and at a pressure of about 130 to 30 atm, the reaction products contain as much normal butyl alcohol as 30% of the starting material; another r% of the ethyl alcohol used has been converted into even higher valuable alcohols.
Erhöht man die Arbeitstemperatur auf 325°, und arbeitet man bei Drucken von Zoo bis 30o Atm., so sinkt die Butylalkoholausbeute.If you increase the working temperature to 325 °, you work with printing from zoo to 30o atm., the butyl alcohol yield drops.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB545849X | 1929-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE545849C true DE545849C (en) | 1932-03-05 |
Family
ID=10471483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930545849D Expired DE545849C (en) | 1929-05-28 | 1930-05-13 | Process for the production of butyl alcohol |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE545849C (en) |
-
1930
- 1930-05-13 DE DE1930545849D patent/DE545849C/en not_active Expired
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