DE517497C - Process for washing out and recovering acetic acid vapors from gases or gas mixtures - Google Patents
Process for washing out and recovering acetic acid vapors from gases or gas mixturesInfo
- Publication number
- DE517497C DE517497C DES87653D DES0087653D DE517497C DE 517497 C DE517497 C DE 517497C DE S87653 D DES87653 D DE S87653D DE S0087653 D DES0087653 D DE S0087653D DE 517497 C DE517497 C DE 517497C
- Authority
- DE
- Germany
- Prior art keywords
- acetic acid
- gases
- gas mixtures
- vapors
- acid vapors
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Auswaschung und Wiedergewinnung von Essigsätiredämpfen aus Gasen oder Gasgemischen Es ist bekannt, Essigsätire aus Dampf-bzw. Gasgeinischen durch Extraktion mit über i5o' siedenden Stoffen, die sich in Wasser nicht oder wenig lösen, aber für Essigsäure ein starkes Lösungsvermögen besitzen, und nachträgliche Destillation des so erhaltenen Extraktes zu gewinnen.Process for washing out and recovering acetic acid vapors from gases or gas mixtures. Gasgeinischen by extraction with i5o 'boiling substances that attract water in little or no resolve, but have for acetic acid a strong solvency, and subsequent distillation of the extract thus obtained.
Ferner ist die Wiedergewinnung von flüchtigen UIsungsriiitteln, die in Luft oder Gasen verteilt sind, durch Auswaschen des gasförinigen Gemisches mit Flüssigkeiten, weicbe einen höheren Siedepunkt als das Löstingsmittel au'fweisen. und AbrIestillieren des Lösungsmittels bekannt. Als Waschflüssigkeiten dienen z. B. Teeröle, N-aselinöle, ]iN-drierte 'Zaphthaline usf.Furthermore, the recovery of volatile solvents, which are distributed in air or gases by washing out the gaseous mixture with Liquids, which have a higher boiling point than the solvent. and distilling off the solvent is known. As washing liquids, z. B. tar oils, N-aseline oils,] iN-drierte 'zaphthalenes etc.
Für die Auswaschung von Essigsäuredämpfen aus Gas oder Gasgemischeii, z. B. Luft, eignet sich nun besonders eine Mischung aus einer organischen Base, die- nicht oder schwer acetylierbar ist, wie Chinolin, Diniethylanilin und ähnliche und einem Kohlenwasserstoff oder Kohlenwasserstoffgemisch, wie Anthracenöl, Paraffinöl, Spindelöl oder andere sehr hochsiedende Kohlenwasserstoff -gemische natürlicher oder künstlicher Zusaminenmischung aus Kohlen- oler Ei-,A#lclestillaten oder auch von din- Verflüssi#gung der Kohle stammend.For washing out acetic acid vapors from gas or gas mixtures z. B. air, a mixture of an organic base is particularly suitable, which cannot be acetylated or is difficult to acetylate, such as quinoline, diniethylaniline and the like and a hydrocarbon or hydrocarbon mixture, such as anthracene oil, paraffin oil, Spindle oil or other very high-boiling hydrocarbon mixtures are more natural or artificial mixture of coal oil, egg, A # oil distillates or else from din liquefaction of coal.
Zweckmäßig verwendet man auf i Teil Base mindestens i Teil Kohlenwasserstoffe. Aus dein Extrakt gewinnt man die ausglewaschene konzentrierte Essigsäure durch bloße Destillation im kontinuierlichen oder diskontinuierlichen Arbeitsgang. Auf diese Weise werden 99"/" der von den Gasen mitgeführten Essl*Usätiredäiilpfe in Form von konzentrierter flüssiger Essigsäure wiedergewonnen.It is expedient to use at least one part of hydrocarbons per part of base. The washed-out concentrated acetic acid is obtained from your extract by mere Distillation in a continuous or discontinuous operation. To this 99 "/" of the Essl * Usätiredäiilpfe carried along by the gases are in the form of concentrated liquid acetic acid.
Bisher wurden derartige -Mischungen zur Auswaschung von Essigsäure aus Gasen nicht verwendet. Sie bieten gegenüber dem bisher Bekannten den großen Vorteil, daß bei Erhaltung normaler Temperatur keinerlei Verluste an Waschöl durch Verflüchtigunmit dein Gas entstehen und daß durch die An-wendung der genannten Basen die Zurückhaltung der Essigsäuredämpfe bzw. deren Wiedergewinnung mit einfachsten Mitteln eine vollständige ist, ohne daß eine Verdünnung der Säure, wie etwa beim Auswaschen init wässerigen Flüssigkeiten-, erfolgt, schließlich daß die nötigen Waschö.linengen infolge hÖchster Waschivirkung der,Basen im Ölgeinisch äußerst geringe sind.So far, such mixtures have been used to wash out acetic acid not used from gases. Compared to what is known so far, they offer the big one The advantage is that no loss of washing oil occurs when the temperature is maintained at normal Volatilization with your gas and that by the use of the bases mentioned the retention of acetic acid vapors or their recovery with the simplest The means is complete without any dilution of the acid, as is the case with Wash out with aqueous liquids, takes place, finally that the necessary washing oils due to the highest washing effect of the bases in the oil mixture are extremely low.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT517497X | 1928-01-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE517497C true DE517497C (en) | 1931-02-07 |
Family
ID=3675751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES87653D Expired DE517497C (en) | 1928-01-05 | 1928-09-29 | Process for washing out and recovering acetic acid vapors from gases or gas mixtures |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE517497C (en) |
-
1928
- 1928-09-29 DE DES87653D patent/DE517497C/en not_active Expired
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