DE611781C - Process for the separation of carbonic acid from carbonic acid-containing gases - Google Patents

Process for the separation of carbonic acid from carbonic acid-containing gases

Info

Publication number
DE611781C
DE611781C DEI44201D DEI0044201D DE611781C DE 611781 C DE611781 C DE 611781C DE I44201 D DEI44201 D DE I44201D DE I0044201 D DEI0044201 D DE I0044201D DE 611781 C DE611781 C DE 611781C
Authority
DE
Germany
Prior art keywords
carbonic acid
separation
containing gases
gases
solution
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
Application number
DEI44201D
Other languages
German (de)
Inventor
Dr Annemarie Beuther
Dr Ernst Hackhofer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI44201D priority Critical patent/DE611781C/en
Application granted granted Critical
Publication of DE611781C publication Critical patent/DE611781C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/50—Carbon dioxide

Description

Verfahren zur Abtrennung von Kohlensäure aus kohlensäurehaltigen Gasen Gegenstand der Erfindung ist ein Verfahren zur Abtrennung von Kohlensäure aus kohlensäurehaltigen Gasen mit Hilfe von Chromatlösungen. Es wurde gefunden, daß Alkalimonochromatlösungen bei höheren Temperaturen, insbesondere bei Temperaturen zwischen 5o und ioo°, unter Druck erhebliche Mengen Kohlensäure aus -kohlensäurehaltigen Gasen aufzunehmen vermögen und daß die dabei absorbierte Kohlensäure durch einfache Druckentlastung den: Lösungen wieder entzogen werden kann. So nimmt z. B. i cbm einer auf 6o bis 8o° erhitzten gesättigten Natriumchromatlösung bei 5 Atmosphären Kohlens,äurepartialdruck in i Stunde 7okg Kohlensäure auf, die bei Druckentlastung bei der gleichen Temperatur praktisch vollständig in hohem Reinheitsgrade wieder abgegeben wird. Es empfiehlt sich dabei, das Entweichen der Kohlensäure durch kräftiges Rühren und gegebenenfalls durch Erhitzen über die während der Absorption herrschenden Temperaturen zu unterstützen. Es ist bekannt, Kohlensäure aus kohlensäurehaltigen Gasen durch Pottaschelösung unter einem Druck von z bis 5 Atmosphären bei gewöhnlicher Temperatur zu absorbieren. Zur Wiedergewinnung der Kohlensäure aus diesen Lösungen ist es erforderlich, die Lösung nach der Druckentlastung längere Zeit auf die Siedetemperatur zu erhitzen. Dieses bekannte Verfahren erfordert also im Vergleich zu dem Verfahren dieser Erfindung einen erheblich größeren Wärmeaufwand.Process for the separation of carbonic acid from carbonated gases The invention relates to a method for separating carbonic acid from carbonated ones Gases with the help of chromate solutions. It has been found that alkali monochromate solutions at higher temperatures, especially at temperatures between 50 and 100 °, below Pressure are able to absorb considerable amounts of carbonic acid from carbonic acid-containing gases and that the carbonic acid absorbed by simple pressure relief becomes the: solutions can be withdrawn again. So takes z. B. i cbm one heated to 6o to 8o ° saturated sodium chromate solution at 5 atmospheres of carbon, acid partial pressure in i Hour 7okg of carbonic acid, which when depressurized at the same temperature is released again practically completely in a high degree of purity. It recommends the escape of the carbonic acid by vigorous stirring and if necessary by heating above the temperatures prevailing during absorption. It is known to carbonate from carbonated gases through potash solution absorb under a pressure of z to 5 atmospheres at ordinary temperature. To recover the carbonic acid from these solutions it is necessary that Heat the solution to the boiling point for a longer period of time after the pressure has been relieved. This known method thus requires as compared to the method of this invention a considerably greater amount of heat.

Claims (1)

PATENTANSPRUCH: Verfahren zur Abtrennung von Kohlensäure aus kohlensäurehaltigen Gasen, dadurch gekennzeichnet, daß man kohlensäurehaltige Gase bei erhöhter Temperatur, insbesondere bei Temperaturen zwischen 5o und ioo°, unter Druck mit der Lösung eines Alkalimonochromats behandelt und die dabei absorbierte Kohlensäure sodann durch Druckentlastung der Lösung entzieht.PATENT CLAIM: Process for the separation of carbonic acid from carbonated Gases, characterized in that carbonated gases are used at an elevated temperature, especially at temperatures between 50 and 100 °, under pressure with the solution of a Treated alkali monochromate and then through the absorbed carbonic acid Depressurization removes the solution.
DEI44201D 1932-04-12 1932-04-13 Process for the separation of carbonic acid from carbonic acid-containing gases Expired DE611781C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI44201D DE611781C (en) 1932-04-12 1932-04-13 Process for the separation of carbonic acid from carbonic acid-containing gases

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE417669X 1932-04-12
DEI44201D DE611781C (en) 1932-04-12 1932-04-13 Process for the separation of carbonic acid from carbonic acid-containing gases

Publications (1)

Publication Number Publication Date
DE611781C true DE611781C (en) 1935-04-09

Family

ID=25910710

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI44201D Expired DE611781C (en) 1932-04-12 1932-04-13 Process for the separation of carbonic acid from carbonic acid-containing gases

Country Status (1)

Country Link
DE (1) DE611781C (en)

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