DE865898C - Device for the production of aldehydes - Google Patents
Device for the production of aldehydesInfo
- Publication number
- DE865898C DE865898C DEB7713D DEB0007713D DE865898C DE 865898 C DE865898 C DE 865898C DE B7713 D DEB7713 D DE B7713D DE B0007713 D DEB0007713 D DE B0007713D DE 865898 C DE865898 C DE 865898C
- Authority
- DE
- Germany
- Prior art keywords
- hydrocarbons
- aldehydes
- production
- ozonated
- gases
- 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
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/40—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with ozone; by ozonolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Description
Es ijst'- bekannt, gesättigte Kohlenwasserstoffe durch katalytische Oxydation mit ozonisiertem Sauerstoff oder ozonisierten sauerstoffhaltigen Gasen dadurch in Aldehyde überzuführen, daß man diese Gase bei erhöhter Temperatur über einen Kontakt leitet, der aus Peroxyden der Erdalkalien und bziv. oderAlkalien, gegebenenfalls mit Zusätzen von Silberoxyd, besteht. Die hierfür in Betracht kommenden technischen kohlenwasserstoffhaltigen Gase stehen nicht immer frei von der Beimengung ungesättigter Kohlenwasserstoffe zur Verfügung. Deren Entfernung aus dein Gas macht umständliche zusätzliche Apparaturen notwendig, die das Verfahren erheblich erschweren. Beläßt man andererseits die ungeisättigten Kohlenwasserstoffe im Gas, so entstehen an der Mischungsstelle mit den ozonisierten sauerstoffhaltigen Gasen Ozonide der ungesättigten Kohlenwasserstoffe, die sich in der Mischkammer bereitsi abscheiden und die hochexplosiv sind. Sie zerknallen oft ohne erkennbaren Anlaß ,und gefährden so den Betrieb des genannten Verfahrens.It is known, saturated hydrocarbons by catalytic Oxidation with ozonized oxygen or ozonized oxygen-containing gases to convert into aldehydes that these gases at elevated temperature over conducts a contact which consists of peroxides of alkaline earths and bziv. or alkalis, optionally with additions of silver oxide. The ones to be considered for this Technical hydrocarbon-containing gases are not always free from the admixture unsaturated hydrocarbons are available. The removal of which makes your gas cumbersome additional equipment is necessary, which complicates the process considerably. On the other hand, if the unsaturated hydrocarbons are left in the gas, they are formed at the point of mixing with the ozonated oxygen-containing gases ozonides of the unsaturated hydrocarbons that are already deposited in the mixing chamber and that are highly explosive. They often pop for no apparent reason and endanger so the operation of the said procedure.
Es wurde nun gefunden-, daß sich solche Explosionen vermeiden lassen, wenn die Mischkammer für die Kohlenwasserstoffe und das ozonisierte Gas senkrecht unmittelbar über dem Kontaktofeneintritt angebracht wird. Dadurch wird erreicht, daß sich die Ozonide unmittelbar nach der Entstehung nicht ablagern, und ansammeln können, sondern sofort dem Kontakt zugeleitet werden, an dem sie sich überraschenderweise wieder zersetzen, ohne zu explodieren.It has now been found that such explosions can be avoided when the mixing chamber for the hydrocarbons and the ozonated gas is vertical is attached directly above the contact furnace inlet. This achieves that the ozonides do not deposit and accumulate immediately after their formation can, but immediately be forwarded to the contact at whom they surprisingly found themselves decompose again without exploding.
Die Vorrichtung gemäß der Erfindung ist in der Zeichnung beispielsweise dargestellt. Die Kohlenwasserstoffe treten bei i, das ozonisierte Gas bei a in die Mischkammer 3 ein. Die Mischung beider Gase gelangt von der Mischkammer unmittelbar in den Kontaktofen 4, ohne daß etwa gebildete Ozonide Gelegenheit haben, sich abzulagern oder anzureichern.The device according to the invention is for example in the drawing shown. The hydrocarbons enter at i, the ozonated gas at a Mixing chamber 3. The mixture of the two gases comes directly from the mixing chamber into the contact furnace 4, without any ozonides formed having the opportunity to deposit or enrich.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB7713D DE865898C (en) | 1944-03-12 | 1944-03-12 | Device for the production of aldehydes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB7713D DE865898C (en) | 1944-03-12 | 1944-03-12 | Device for the production of aldehydes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE865898C true DE865898C (en) | 1953-02-05 |
Family
ID=6955545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB7713D Expired DE865898C (en) | 1944-03-12 | 1944-03-12 | Device for the production of aldehydes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE865898C (en) |
-
1944
- 1944-03-12 DE DEB7713D patent/DE865898C/en not_active Expired
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