AT89264B - Process for the production of ethyl alcohol. - Google Patents
Process for the production of ethyl alcohol.Info
- Publication number
- AT89264B AT89264B AT89264DA AT89264B AT 89264 B AT89264 B AT 89264B AT 89264D A AT89264D A AT 89264DA AT 89264 B AT89264 B AT 89264B
- Authority
- AT
- Austria
- Prior art keywords
- ethyl alcohol
- copper
- production
- desc
- hydrogen
- Prior art date
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title description 6
- 235000019441 ethanol Nutrition 0.000 title description 3
- 238000004519 manufacturing process Methods 0.000 title description 2
- 238000000034 method Methods 0.000 title description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000008262 pumice Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000005749 Copper compound Substances 0.000 description 1
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 239000005750 Copper hydroxide Substances 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 229910001956 copper hydroxide Inorganic materials 0.000 description 1
- PTVDYARBVCBHSL-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu] PTVDYARBVCBHSL-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- SQYNKIJPMDEDEG-UHFFFAOYSA-N paraldehyde Chemical compound CC1OC(C)OC(C)O1 SQYNKIJPMDEDEG-UHFFFAOYSA-N 0.000 description 1
- 229960003868 paraldehyde Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000012266 salt solution 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 Herstellung von Äthylalkohol.
E- ; wurdf gefunden, dass sieh die Hydrierung von Acetaldehyd zu Äthylalkohol mit vorzüglichem Erfolg ausführen lässt, wenn man als Katalysator Kupfer in fein verteilter Form, wie es durch Reduktion gefällter Kupferverbindungen erhalten wird, verwendet, Die Reduktion des Kupfers wird zweckmässig bei möglichst niedriger Temperatur vorgenommen. Das Kupfer hat dabei vor dem teuren Nickel den Vorzug dass die Reduktion seines Oxydes schon bei der im vorliegenden Falle für die Hydrierung des Acetal- dehyds verwendeten Reaktionstemperatur von etwa 150-2000 erfolgt, so dass eine Oxydation des Katalysators während des Arbeitens ausgeschlossen ist.
Man benutzt zweckmässig ein durch Fällen von heissen Kupfersalzlösungen mit Ätzalkalien und Reduktion des Kupferhydrates mit Wasserstoff bei etwa 200'erhaltenes Kupfer, über welches bei einer Temperatur von etwa 180 Aeetaldehyddampf mit Wasserstoff im Überschuss geleitet wird.
Das Kupfer kann in geeigneter Weise auf Träger, wie Bimsstein, aufgebracht sein, z. B. indem man da, Kupferhydroxyd vor der Reduktion mit Bimssteinpulver mischt. Der Acetaldehyd kann auch in polymerer Form, z. B. als Paraldehyd, verwendet werden.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of ethyl alcohol.
E-; It was found that the hydrogenation of acetaldehyde to ethyl alcohol can be carried out with excellent success if the catalyst used is copper in finely divided form, as obtained by reducing precipitated copper compounds. The reduction of copper is expediently carried out at the lowest possible temperature. Copper has the advantage over expensive nickel that the reduction of its oxide takes place at the reaction temperature of about 150-2000 used in the present case for the hydrogenation of the acetaldehyde, so that oxidation of the catalyst during operation is excluded.
It is useful to use a copper obtained by precipitating hot copper salt solutions with caustic alkalis and reducing the copper hydrate with hydrogen at about 200 °, over which at a temperature of about 180 aeetaldehyde vapor is passed with excess hydrogen.
The copper may suitably be applied to supports such as pumice stone, e.g. B. by mixing copper hydroxide with pumice stone powder prior to reduction. The acetaldehyde can also be in polymeric form, e.g. B. as paraldehyde can be used.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE89264X | 1920-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT89264B true AT89264B (en) | 1922-08-25 |
Family
ID=5642681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT89264D AT89264B (en) | 1920-02-09 | 1921-02-04 | Process for the production of ethyl alcohol. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT89264B (en) |
-
1921
- 1921-02-04 AT AT89264D patent/AT89264B/en active
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