AT73410B - Process for catalytic hydrogenation. - Google Patents
Process for catalytic hydrogenation.Info
- Publication number
- AT73410B AT73410B AT73410DA AT73410B AT 73410 B AT73410 B AT 73410B AT 73410D A AT73410D A AT 73410DA AT 73410 B AT73410 B AT 73410B
- Authority
- AT
- Austria
- Prior art keywords
- catalytic hydrogenation
- carbon oxide
- hydrogen
- water vapor
- parts
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 5
- 238000009903 catalytic hydrogenation reaction Methods 0.000 title description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- 229910002090 carbon oxide Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- FMRLDPWIRHBCCC-UHFFFAOYSA-L Zinc carbonate Chemical compound [Zn+2].[O-]C([O-])=O FMRLDPWIRHBCCC-UHFFFAOYSA-L 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229940116318 copper carbonate Drugs 0.000 description 1
- GEZOTWYUIKXWOA-UHFFFAOYSA-L copper;carbonate Chemical compound [Cu+2].[O-]C([O-])=O GEZOTWYUIKXWOA-UHFFFAOYSA-L 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur katalytischen Hydrogenisation.
Die katalytische Hydrogenisation wurde bisher ausschliesslich mit Wasserstoff oder Wasserstoff enthaltenden Gasen ausgeführte
Es wurde nun die technisch wichtige Beobachtung gemacht, dass diese Hydrogenisation auch bei Abwesenheit von Wasserstoff mit Kohlenoxyd bzw. kohlenoxydhaltigen Gasen gelingt, wenn man in das Gasgemisch Wasserdampf einführt Auch bei wasserstoffbaltigen Kohlenoxydgemischen kann man durch Zufügung von Wasserdampf eine Erhöhung der Reduktionswirkung erzielen. Auffallenderweise lässt sich diese Hydrogenisation oft schon bei relativ niedriger Temperatur ausführen.
Das Verfahren, durch welches es ermöglicht wird, den Wasserstoff durch das namentlich in Mischung erheblich billigere Kohlenoxyd zu ersetzen, kann für die verschiedenartigsten, katalytischen Hydrogenisationen Anwendung finden. Zwecks Reduktion von Nitroverbindungen, z. B. zur Überführung von Nitrobenzol in Anilin, leitet man zweckmässig mindesten so viel Wasserdampf zu, dass auf 3 Moleküle Kohlenoxyd 1 Molekül Wasserdampf vorhanden ist. Unter geeigneten Bedingungen lässt sich diese Reduktion schon bei 200 bis 2200 ausführen.
Beispiel : Eine Kupferkontaktmasse, wie sie z. B. durch Überziehen von 130 Teilen Bimsstein mit einem Gemisch von 24-3 Teilen Kupferharbonat, 2-7 Teilen Zinkkarbonat und 20 Teilen etwa 40% iger Wasserglas ! ösung und Reduktion bei 180 bis 2200 erhältlich ist, wird in einen vertikalen Zylinder gefüllt. Man leitet in den Zylinder ein Gemisch von Nitrobenzoldämpfen und überschüssigem Kohlenoxyd und Wasserdampf. Bei einer Temperatur von 200 bis 2200 erfolgt glatte Reduktion zu Anilin.
Analog verfährt man bei Verwendung anderer Katalysatoren und anderer zu hydro- genisierender Verbindungen.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for catalytic hydrogenation.
The catalytic hydrogenation has hitherto been carried out exclusively with hydrogen or hydrogen-containing gases
The technically important observation has now been made that this hydrogenation also succeeds in the absence of hydrogen with carbon oxide or gases containing carbon oxide, if water vapor is introduced into the gas mixture. Even with hydrogen-containing carbon oxide mixtures, an increase in the reducing effect can be achieved by adding water vapor. It is striking that this hydrogenation can often be carried out at a relatively low temperature.
The process by which it is made possible to replace the hydrogen with the carbon dioxide, which is considerably cheaper in particular when mixed, can be used for the most varied of catalytic hydrogenations. For the purpose of reducing nitro compounds, e.g. B. to convert nitrobenzene into aniline, it is advisable to add at least enough water vapor that there is 1 molecule of water vapor for every 3 molecules of carbon oxide. Under suitable conditions, this reduction can be carried out as early as 200 to 2200.
Example: A copper contact mass, as it is e.g. B. by coating 130 parts of pumice stone with a mixture of 24-3 parts of copper carbonate, 2-7 parts of zinc carbonate and 20 parts of about 40% water glass! Solution and reduction available at 180 to 2200 is filled into a vertical cylinder. A mixture of nitrobenzene vapors and excess carbon dioxide and water vapor is passed into the cylinder. Smooth reduction to aniline occurs at a temperature of 200 to 2200.
The procedure is analogous when using other catalysts and other compounds to be hydrogenated.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE73410X | 1914-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT73410B true AT73410B (en) | 1917-05-25 |
Family
ID=5636455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT73410D AT73410B (en) | 1914-06-20 | 1915-04-26 | Process for catalytic hydrogenation. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT73410B (en) |
-
1915
- 1915-04-26 AT AT73410D patent/AT73410B/en active
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