AT81100B - Process for the preparation of acetic acid. Process for the preparation of acetic acid. - Google Patents
Process for the preparation of acetic acid. Process for the preparation of acetic acid.Info
- Publication number
- AT81100B AT81100B AT81100DA AT81100B AT 81100 B AT81100 B AT 81100B AT 81100D A AT81100D A AT 81100DA AT 81100 B AT81100 B AT 81100B
- Authority
- AT
- Austria
- Prior art keywords
- sep
- acetic acid
- preparation
- pressure
- oxygen
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 8
- 238000002360 preparation method Methods 0.000 title claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 claims description 4
- 239000000969 carrier Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 description 7
- 229960000583 acetic acid Drugs 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910000420 cerium oxide Inorganic materials 0.000 description 2
- ZQMIGQNCOMNODD-UHFFFAOYSA-N diacetyl peroxide Chemical compound CC(=O)OOC(C)=O ZQMIGQNCOMNODD-UHFFFAOYSA-N 0.000 description 2
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Chemical class 0.000 description 2
- 239000002184 metal Chemical class 0.000 description 2
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 2
- 150000000703 Cerium Chemical class 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 1
- -1 platinum black Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Da'stellung von Essigsäure.
Die Oxydation von Acetaldehyd zur Essigsäure durch molekularem Sauerstoff bzw.
Luft geht so lang am vor sich, dass dieses Verfahren für die technische Darstellung der Essigsäure nicht in Betracht kommt. Auch die Anwendung von erhöhtem Druck, etwa wie sie in dem D. R. P. Nr. 229854 vorgeschlagen worden ist, führt nicht zu technisch brauchbaren Ergebnissen. Es ist ferner für diesen Prozess die Benutzung von Sauerstoffüberträgern in Vorschlag gebracht worden (vagi. die französische Patentschrift Nr. 440658). Die Wirkung derselben ist ind : s nicht derart, dass damit die Reaktion in den Bereich der technischen Ausführbarkeit gerückt würde und man hielt es demgemäss für erforderlich, zur Erreichung des gewünschten Zweckes Umwege einzuschlagen, welche eine erhebliche Komplikation und Verteuerung des Verfahrens beJingen (vgl. z. B. D. R. P. Nr. 261589).
Es wurde nun gefunden, dass man zu wesentlich besseren und technisch brauchbaren Resultaten gelangt, wenn man die Oxydation des Aldehyds in Gegenwart von Überträgern unter Druck ausführt. Die gemeinsame Anwendung von Druck und Katalysatoren geht in ihrer Wirkung überraschender Weise über die Summierung der Einzelwirkungen weit hinaus.
Folgende Darstellung der experimentellen Ergebnisse lässt dies klar erkennen.
EMI1.1
EMI1.2
EMI1.3
<tb>
<tb> Kurve <SEP> i <SEP> = <SEP> Oxydationsverlauf <SEP> bei <SEP> 200 <SEP> ohne <SEP> Druck <SEP> und <SEP> ohne <SEP> Katalysator.
<tb>
,, <SEP> 2= <SEP> " <SEP> " <SEP> 200 <SEP> ohne <SEP> Druck <SEP> und <SEP> mit <SEP> Katalysator.
<tb>
# <SEP> 3 <SEP> = <SEP> # <SEP> # <SEP> 20 <SEP> mit <SEP> Druck <SEP> und <SEP> ohne <SEP> Katalysator.
<tb>
,, <SEP> 4= <SEP> ")) <SEP> 200 <SEP> mit <SEP> Druck <SEP> und <SEP> mit <SEP> Katalysator.
<tb>
<Desc/Clms Page number 2>
EMI2.1
Versuchen Kupferacetat Verwendung. Arbeitet man bei anderen Temperaturen oder mit anderen Katalysatoren, mit geände@ter Rührgeschwindigkeit u. dgl. so ändert sich an dem
Gesamtbilde nichts wesentliches. Leitet man zum Beispiel in Aldehyd, dem eine geringe mense Ceroxyd zugesetzt ist, bei gewöhnlicher Temp ratur Sauerstoff unter einem Überdruck von etwa 2 Atm. ein, so steigt die Temperatur rasch von selbst auf 50 bis 600 an und nach wenigen Stunden ist der Aldehyd vollständig in Eisessig übergeführt. Dabei tritt weder Kohlensäure auf, noch wird die Bildung von Azetylperoxyd oder anderen, explosiblen V. rbindungen beobachtet.
Ein ebenso günstiges Resultat wird erzielt, wenn man an Stelle von Sauerstoff mit Luft aibeitet. In diesem Falle wendet man zweckmässig einen etwas höh. ren Druck an, um der Stickstoffverdünnung entgegenzuwirken. An Stelle von Ceroxyd können auch Cersalze, ferner die meisten Metalloxyde und Metallsalze, deren sauerstoff- übert. agende Wirkung bekannt ist. wie z. B. Eisenoxyd, Vanadinpentoxyd, Chromoxyd, ferner ftin verteilte Metalle, wie Platinmohr usw.. Verwendung finden.
Es ergibt sich also durch die in nicht vorjussehbarer Weise wirkende Anwendung der beiden Faktoren Druck und Katalysatoren für das so wichtige Problem der synthetischen Essigsäureerzeugung eine technisch überaus einfache und vorteilhafte Lösung.
<Desc / Clms Page number 1>
Process for the preparation of acetic acid.
The oxidation of acetaldehyde to acetic acid by molecular oxygen or
Air goes on for so long that this process cannot be used for the technical preparation of acetic acid. The use of increased pressure, for example as suggested in D. R. P. No. 229854, does not lead to technically useful results either. The use of oxygen carriers has also been proposed for this process (vagi. French patent specification No. 440658). The effect of the same is not such that the reaction would move into the realm of technical feasibility and it was accordingly considered necessary to take detours to achieve the desired purpose, which would make the process considerably more complicated and expensive (cf. e.g. BDRP No. 261589).
It has now been found that significantly better and technically useful results are obtained if the oxidation of the aldehyde is carried out in the presence of carriers under pressure. The joint use of pressure and catalysts surprisingly goes far beyond the summation of the individual effects.
This can be clearly seen in the following presentation of the experimental results.
EMI1.1
EMI1.2
EMI1.3
<tb>
<tb> Curve <SEP> i <SEP> = <SEP> Oxidation process <SEP> with <SEP> 200 <SEP> without <SEP> pressure <SEP> and <SEP> without <SEP> catalyst.
<tb>
,, <SEP> 2 = <SEP> "<SEP>" <SEP> 200 <SEP> without <SEP> pressure <SEP> and <SEP> with <SEP> catalyst.
<tb>
# <SEP> 3 <SEP> = <SEP> # <SEP> # <SEP> 20 <SEP> with <SEP> pressure <SEP> and <SEP> without <SEP> catalyst.
<tb>
,, <SEP> 4 = <SEP> ")) <SEP> 200 <SEP> with <SEP> pressure <SEP> and <SEP> with <SEP> catalyst.
<tb>
<Desc / Clms Page number 2>
EMI2.1
Try using copper acetate. If you work at different temperatures or with different catalysts, with changed stirring speed and the like. Like. So changes to that
Overall picture nothing essential. If, for example, a small amount of cerium oxide is added to aldehyde, oxygen is passed at normal temperature under an overpressure of about 2 atm. a, the temperature rises rapidly to 50 to 600 and after a few hours the aldehyde is completely converted into glacial acetic acid. No carbonic acid occurs, nor is the formation of acetyl peroxide or other explosive bonds observed.
An equally favorable result is achieved if air is used instead of oxygen. In this case it is advisable to turn one a little higher. pressure to counteract nitrogen dilution. Instead of cerium oxide, cerium salts can also be used, as can most metal oxides and metal salts, their oxygen over. acting effect is known. such as B. iron oxide, vanadium pentoxide, chromium oxide, also ftin distributed metals, such as platinum black, etc .. Use.
The use of the two factors pressure and catalysts, which cannot be foreseen, results in a technically extremely simple and advantageous solution for the important problem of synthetic acetic acid production.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE81100X | 1913-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT81100B true AT81100B (en) | 1920-08-25 |
Family
ID=5639373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT81100D AT81100B (en) | 1913-04-26 | 1914-04-22 | Process for the preparation of acetic acid. Process for the preparation of acetic acid. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT81100B (en) |
-
1914
- 1914-04-22 AT AT81100D patent/AT81100B/en active
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