DE475428C - Process for the production of acetone - Google Patents

Process for the production of acetone

Info

Publication number
DE475428C
DE475428C DEH99673D DEH0099673D DE475428C DE 475428 C DE475428 C DE 475428C DE H99673 D DEH99673 D DE H99673D DE H0099673 D DEH0099673 D DE H0099673D DE 475428 C DE475428 C DE 475428C
Authority
DE
Germany
Prior art keywords
acetone
iron
ethyl alcohol
production
reaction
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
DEH99673D
Other languages
German (de)
Inventor
Dr Koloman Roka
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.)
Holzverkohlungs Ind A G
Original Assignee
Holzverkohlungs Ind A G
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 Holzverkohlungs Ind A G filed Critical Holzverkohlungs Ind A G
Priority to DEH99673D priority Critical patent/DE475428C/en
Application granted granted Critical
Publication of DE475428C publication Critical patent/DE475428C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds

Landscapes

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

Description

Verfahren zur Herstellung von Aceton Nach der Erfindung gelingt es, Äthylalkohol glatt in Aceton überzuführen, und zwar dadurch, daß der Äthylalkohol bei höheren Temperaturen unter Mitwirkung von Katalysatoren mit Wasserdampf behandelt wird. Als reaktionsbegünstigend haben sich Sauerstoffverbindungen des Eisens, ferner des Mangans und Kupfers, z. B. Eisenoxyd, Manganhydroxyd, Kupferoxydhydrat, Kupfercarbonat, erwiesen. Im allgemeinen hat es sich als vorteilhaft gezeigt, derartige Katalysatoren im Verein mit anderen Stoffen, z. B. in Form eisenhaltiger Mineralien, oder von Stoffen oder Mischungen, welche oxydische Eisenverbindungen o. dgl. enthalten, zur Anwendung zu bringen. Die Wirksamkeit der Katalysatoren kann erheblich gesteigert werden durch Zugabe von Hilfsstoffen, wie beispielsweise Calciumcarbonat oder Magnesiumoxyd. Bei Anwendung derartiger Katalysatorenkombinationen, z. B. von Eisenoxyd und Calciumcarbonat, ist es vorteilhaft, Glie Komponenten in möglichst enge Berührung miteinander zu bringen, z. B. derart, daß die einzelnen Körner der Beschickung beide Bestandteile gemischt enthalten, oder derart, daß einer als Träger für den anderen dient. Der Wasserdampf wird vorteilhaft in erheblichem Überschuß angewendet. Als Temperaturen kommen vorzugsweise solche zwischen 25o' und 6o0° in Betracht. Die Reaktion verläuft entsprechend der Gleichung: -2CH,CI4OH+H,0- CH.COCH3 +CO.,+4H... Beispiele i. Ein Eisenrohr von io5 mm lichter Weite und 130 cm Länge, welches mit Kiesabbränden beschickt ist, wird auf eine Länge von 105 cm auf 5oo° erhitzt. Eine Mischung von i2oo g Äthylalkohol und 285oo g Wasserdampf wird im Verlaufe von io Stunden durch das Rohr geleitet. Die entweichenden Dämpfe werden kondensiert. Das Kondensat enthält i Zoo g Aceton. Die Ausbeute, bezogen auf den angewendeten Äthylalkohol, beträgt mithin 59,4 0110 der Theorie.Process for the preparation of acetone According to the invention, it is possible to convert ethyl alcohol smoothly into acetone by treating the ethyl alcohol with steam at higher temperatures with the aid of catalysts. Oxygen compounds of iron, manganese and copper, z. B. iron oxide, manganese hydroxide, copper oxide hydrate, copper carbonate, proven. In general, it has been found to be advantageous to use such catalysts in conjunction with other substances, e.g. B. in the form of iron-containing minerals, or of substances or mixtures containing oxidic iron compounds o. The like. To bring to use. The effectiveness of the catalysts can be increased considerably by adding auxiliaries such as calcium carbonate or magnesium oxide. When using such catalyst combinations, e.g. B. of iron oxide and calcium carbonate, it is advantageous to bring Glie components into as close contact as possible, z. B. such that the individual grains of the charge contain both ingredients mixed, or such that one serves as a carrier for the other. The steam is advantageously used in a considerable excess. Temperatures between 25 ° and 60 ° are preferably considered. The reaction proceeds according to the equation: -2CH, CI4OH + H, 0- CH.COCH3 + CO., + 4H ... Examples i. An iron tube of IO5 mm internal diameter and 130 cm in length, which is charged with pyrite cinders, to a length of 1 cm heated to 05 ° 5oo. A mixture of 100 g of ethyl alcohol and 28,500 g of steam is passed through the pipe over the course of 10 hours. The escaping vapors are condensed. The condensate contains 1 zoo g of acetone. The yield, based on the ethyl alcohol used, is therefore 59.4 0110 of theory.

2. Dasselbe Eisenrohr wird beschickt mit rostigen Eisenspänen, auf welchen 3 Gewichtsprozente Calciumcarbonat niedergeschlagen sind, und in einer Länge von io5 cm auf 5oo° erhitzt. Eine Mischung von 3200 g Äthylalkohol und 2850o g Wasserdampf wird innerhalb io Stunden durch das Rohr geleitet. Die entweichenden Dämpfe werden kondensiert. Das Kondensat enthält 1624 g Aceton; die Ausbeute, bezogen auf den angewendeten Äthylalkohol, beträgt also 8o,5 % der Theorie.2. The same iron pipe is charged with rusty iron filings, on which 3 percent by weight calcium carbonate has precipitated, and heated to 500 ° over a length of 10 5 cm. A mixture of 3200 g of ethyl alcohol and 2850o g of steam is passed through the pipe over the course of ten hours. The escaping vapors are condensed. The condensate contains 1624 g of acetone; the yield, based on the ethyl alcohol used, is 80.5% of theory.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Aceton, dadurch gekennzeichnet, daß Äthylalkohol und zweckmäßig im Überschuß anzuwendender Wasserdampf in Gegenwart von Metallsauerstoffverbindungen, z. B. des Eisens, Mangans oder Kupfers, oder von derartige Verbindungen enthaltenden Stoffen oder Gemischen bei höheren Temperaturen zur Reaktion gebracht werden, wobei vorteilhaft für Anwesenheit von reaktionsbefördernden Hilfsstoffen, z. B. Calciumca.rbonat oder Magnesiumoxyd, Sorge getragen wird.PATENT CLAIM: Process for the production of acetone, characterized in that ethyl alcohol and expediently in excess steam to be used in the presence of metal oxygen compounds, e.g. B. of iron, manganese or copper, or of substances or mixtures containing such compounds at higher temperatures be brought to reaction, advantageous for the presence of reaction-promoting Auxiliaries, e.g. B. calcium carbonate or magnesium oxide, care is taken.
DEH99673D 1924-12-11 1924-12-11 Process for the production of acetone Expired DE475428C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH99673D DE475428C (en) 1924-12-11 1924-12-11 Process for the production of acetone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH99673D DE475428C (en) 1924-12-11 1924-12-11 Process for the production of acetone

Publications (1)

Publication Number Publication Date
DE475428C true DE475428C (en) 1929-04-25

Family

ID=7168375

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH99673D Expired DE475428C (en) 1924-12-11 1924-12-11 Process for the production of acetone

Country Status (1)

Country Link
DE (1) DE475428C (en)

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