DE533466C - Process for the production of acetaldehyde or acetic acid - Google Patents

Process for the production of acetaldehyde or acetic acid

Info

Publication number
DE533466C
DE533466C DEI31947D DEI0031947D DE533466C DE 533466 C DE533466 C DE 533466C DE I31947 D DEI31947 D DE I31947D DE I0031947 D DEI0031947 D DE I0031947D DE 533466 C DE533466 C DE 533466C
Authority
DE
Germany
Prior art keywords
acetic acid
acetaldehyde
production
acetylene
hydrogen
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
DEI31947D
Other languages
German (de)
Inventor
Dr Hermann Jochheinn
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 DEI31947D priority Critical patent/DE533466C/en
Application granted granted Critical
Publication of DE533466C publication Critical patent/DE533466C/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von Acetaldehyd oder Essigsäure In dem Hauptpatent 5o9 o2o ist ein Verfahren zur Herstellung von Acetaldehyd oder Essigsäure aus Acetylen oder acetylenhaltigen Gasen beschrieben, bei dem diese in Gegenwart von Wasserstoff oder wasserstoffhaltigen Gasen und unter Einwirkung oxydierender Gase, z. B. Sauerstoff oder Luft, über Kontaktmassen geleitet werden. Nach dem Zusatzpatent 52q.716 gelangt man hierbei unmittelbar zu Essigsäure, wenn man als Katalysatoren Zinn-, Kupfer- oder Silberchromat bzw. -vanadinat für sich oder in Mischung, gegebenenfalls in Gegenwart von Metalloxyden, verwendet. Bei der Verarbeitung der genannten Gasgemische, besonders bei solchen mit höherem Acetylengehalt, kann, wie sich gezeigt hat, die Gefahr von Explosionen auftreten, wenn die oxydierenden Gase auf einmal zugeleitet werden.Process for the production of acetaldehyde or acetic acid In the main patent 5o9 o2o is a process for producing acetaldehyde or acetic acid from acetylene or acetylene-containing gases described, in which these in the presence of hydrogen or hydrogen-containing gases and under the action of oxidizing gases, e.g. B. Oxygen or air, can be passed over contact masses. According to the additional patent 52q.716 this leads directly to acetic acid if tin, copper or silver chromate or vanadinate by itself or as a mixture, optionally in Presence of metal oxides. When processing the gas mixtures mentioned, especially with those with a higher acetylene content, it has been shown that the Risk of explosions occur if the oxidizing gases are fed in at once will.

Es wurde nun gefunden, daß man diesen Nachteil beseitigen und das Verfahren auch für Gasgemische mit höherem Acetylengehalt verwenden kann, wenn man die oxydierenden Gase stufenweise, z. B. in drei oder mehr hintereinander angeordneten Stellen, sei es in gleichen oder in getrennten Kontaktöfen, zuführt.It has now been found that this disadvantage can be eliminated and that Method can also be used for gas mixtures with a higher acetylene content if one the oxidizing gases in stages, e.g. B. arranged in three or more one behind the other Places, be it in the same or in separate contact furnaces.

Beispiel. 4 cbm eines Gasgemisches, welches 25,6% Acetylen und 74,40/0 Wasserstoff enthält, werden nacheinander durch sieben auf 22o bis 23o° -erhitzte Kontaktöfen: geleitet, welche mit auf aktive Kohle oder Kieselsäure aufgetragenem vanadinsaurem Zinn beschickt sind. Gleichzeitig werden den verschiedenen Kontaktöfen etwa 1,86 cbm Sauerstoff derart zugeführt, daß die in jeden Kontaktofen eintretende Gasmischung etwa 1o °/o Sauerstoff enthält. Bei Durchgang des Acetylenwasserstoffgemisches durch sämtliche Öfen erhält man eine 3o- bis 4o °/o ige Essigsäure in einer Ausbeute von 66,5 °/o des angewendeten Acetylens.Example. 4 cbm of a gas mixture containing 25.6% acetylene and 74.40 / 0 Contains hydrogen are successively heated by seven to 22o to 23o ° Contact furnaces: conducted those with coated on active charcoal or silica vanadium tin. At the same time the various contact ovens about 1.86 cbm of oxygen is supplied such that the amount entering each contact furnace Gas mixture contains about 10% oxygen. On passage of the acetylene hydrogen mixture all ovens give 30 to 40 percent acetic acid in one yield of 66.5% of the acetylene used.

Claims (1)

PATENTANSPRUCH: Weiterbildung des Verfahrens des Hauptpatents 5o9 o2o sowie des Zusatzpatents 524 716, dadurch gekennzeichnet, daß man die oxydierenden Gase stufenweise zuleitet.PATENT CLAIM: Further development of the process of the main patent 5o9 o2o and the additional patent 524 716, characterized in that the oxidizing Gasses in gradually.
DEI31947D 1927-08-18 1927-08-18 Process for the production of acetaldehyde or acetic acid Expired DE533466C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI31947D DE533466C (en) 1927-08-18 1927-08-18 Process for the production of acetaldehyde or acetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI31947D DE533466C (en) 1927-08-18 1927-08-18 Process for the production of acetaldehyde or acetic acid

Publications (1)

Publication Number Publication Date
DE533466C true DE533466C (en) 1931-09-15

Family

ID=7188015

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI31947D Expired DE533466C (en) 1927-08-18 1927-08-18 Process for the production of acetaldehyde or acetic acid

Country Status (1)

Country Link
DE (1) DE533466C (en)

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