DE352714C - Process for the production of alkali hydroxides from alkali sulfates - Google Patents

Process for the production of alkali hydroxides from alkali sulfates

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Publication number
DE352714C
DE352714C DE1920352714D DE352714DD DE352714C DE 352714 C DE352714 C DE 352714C DE 1920352714 D DE1920352714 D DE 1920352714D DE 352714D D DE352714D D DE 352714DD DE 352714 C DE352714 C DE 352714C
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DE
Germany
Prior art keywords
alkali
hydrogen
production
hydroxides
heated
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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
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DE1920352714D
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German (de)
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K KAISER DR
Original Assignee
K KAISER DR
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Publication date
Application filed by K KAISER DR filed Critical K KAISER DR
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Publication of DE352714C publication Critical patent/DE352714C/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Verfahren zur Gewinnung von Alkalihydroxyden aus Alkalisulfaten. Es wurde gefunden, daß man als Natriumsulfat dadurch Ätznatron gewinnen kann, daß man über erhitztes Natriumsulfat, kristallwasserhaltiges oder entwässertes, ein Gemisch von Wasserstoff und Wasserdampf leitet. Die Ausführung des Verfahrens kann beispielsweise in der Art erfolgen, daß man trocknes Natriumsulfat in ein Ouarzrohr bringt und Wasserstoff darüber leitet, den man zuvor durch erwärmtes Wasser geführt hat. Man führt die Reaktion so lange fort, bis kein Schwefelwasserstoff mehr aus .dem Rohr entweicht. Die Reaktion beginnt bereits bei etwa 400°. Die Reaktionsgeschwindigkeit nimmt mit steigender Temperatur zu, so daß es zweckmäßig ist, bei Temperaturen zwischen 6oo und 7oo° zu arbeiten. Man kann auch bis zum Schmelzen erhitzen und das Wasserstoff-Dampf-Gemisch durch das geschmolzene Salz leiten.Process for the production of alkali hydroxides from alkali sulfates. It it was found that caustic soda can be obtained as sodium sulphate by over heated sodium sulphate, containing water of crystallization or dehydrated, a mixture conducts of hydrogen and water vapor. The execution of the method can, for example be carried out in such a way that one brings dry sodium sulfate in an Ouarzrohr and Hydrogen passes over it, which has previously been passed through heated water. Man the reaction continues until no more hydrogen sulfide from .dem tube escapes. The reaction starts at around 400 °. The speed of response increases with increasing temperature, so that it is expedient at temperatures between 6oo and 7oo ° to work. You can also heat until it melts and the hydrogen-steam mixture pass through the melted salt.

Mischt man dem Wasserstoff-Dampf-Gemisch noch Kohlendioxyd bei, so entsteht an Stelle von Ätznatron Natriumkarbonat.If you add carbon dioxide to the hydrogen-steam mixture, so Instead of caustic soda, sodium carbonate is produced.

Man kann auch, um die Einwirkung von nascierendem Wasser zu erzielen, dem Sulfat solche Substanzen zumischen, die, wie Calciumhydroxyd, beim Erhitzen Wasser abspalten, oder Metalloxyde, die, wie z. ß. Eisenoyde, durch Wasserstoff reduziert werden.One can also, in order to achieve the effect of nasal water, Add substances to the sulphate, such as calcium hydroxide, when heated Eliminate water, or metal oxides, such as. ß. Eisenoyde, by hydrogen be reduced.

Claims (3)

PATENTANSPRÜCHE. r. Verfahren zur Gewinnung von Alkalihydroxyden aus Alkalisulfaten, dadurch gekennzeichnet, daß man über das erhitzte Sulfat ein Gemisch von Wasserstoff und Wasserdampf leitet. PATENT CLAIMS. r. Process for obtaining alkali hydroxides from alkali sulphates, characterized in that a mixture of hydrogen and water vapor is passed over the heated sulphate. 2. Verfahren nach Anspruch z, dadurch gekennzeichnet, daß man den Sulfaten solche Substanzen zusetzt, die, wie Calciumhydroxyd, beim Erhitzen Wasser abspalten oder solche Metalloxyde, die, wie Eisenoyd, durch Wasserstoff reduziert werden. 2. The method according to claim z, characterized characterized in that substances are added to the sulphates, such as calcium hydroxide, when heated, split off water or those metal oxides which, like iron oxide, pass through Hydrogen can be reduced. 3. Abänderung des Verfahrens nach Anspruch z und 2 zum Zwecke der Herstellung von Alkalicarbonaten, dadurch gekennzeichnet, daß dem Wasserstoff-Dampf-Gemisch noch Kohlendioxyd zugesetzt wird.3. Modification of the method according to claim z and 2 for the purpose of producing alkali carbonates, characterized in that the Hydrogen-vapor mixture or carbon dioxide is added.
DE1920352714D 1920-04-20 1920-04-20 Process for the production of alkali hydroxides from alkali sulfates Expired DE352714C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE352714T 1920-04-20

Publications (1)

Publication Number Publication Date
DE352714C true DE352714C (en) 1922-05-01

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Family Applications (1)

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DE1920352714D Expired DE352714C (en) 1920-04-20 1920-04-20 Process for the production of alkali hydroxides from alkali sulfates

Country Status (1)

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DE (1) DE352714C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744817C (en) * 1941-03-15 1944-01-26 Meyer Fa Rud Otto Process for the production of sodium carbonate from Glauber's salt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744817C (en) * 1941-03-15 1944-01-26 Meyer Fa Rud Otto Process for the production of sodium carbonate from Glauber's salt

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