DE338088C - Process for the production of sulphate of potassium magnesia from a mixture of potassium chloride and kieserite - Google Patents

Process for the production of sulphate of potassium magnesia from a mixture of potassium chloride and kieserite

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Publication number
DE338088C
DE338088C DE1920338088D DE338088DD DE338088C DE 338088 C DE338088 C DE 338088C DE 1920338088 D DE1920338088 D DE 1920338088D DE 338088D D DE338088D D DE 338088DD DE 338088 C DE338088 C DE 338088C
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DE
Germany
Prior art keywords
potassium
kieserite
mixture
sulphate
magnesia
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
DE1920338088D
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German (de)
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.)
Kali Forschungs Anstalt GmbH
Original Assignee
Kali Forschungs Anstalt GmbH
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 Kali Forschungs Anstalt GmbH filed Critical Kali Forschungs Anstalt GmbH
Application granted granted Critical
Publication of DE338088C publication Critical patent/DE338088C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01DCOMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D5/00Sulfates or sulfites of sodium, potassium or alkali metals in general
    • C01D5/12Preparation of double sulfates of magnesium with sodium or potassium

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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 Herstellung schwefelsaurer Kalimagnesia aus einem Gemisch von Chlorkalium und Kieserit. Bei den seither bekannten Verfahren zur Herstellung von schwefelsaurer Kalimagnesia aus Chlorkalium und Kieserit zeigte sich die Schwerlöslichkeit des Kieserits als. sehr hin, derlich bei der Anwendung dieser Verfahren, sei es nun, daS das eine der Ausgangsmaterialien in gelöstem Zustande auf das andere in festem Zustande einwirkte, oder daß beide in gelöster Form angewendet wurden.Process for the production of sulphate of potassium magnesia from a mixture of potassium chloride and kieserite. In the methods of manufacture known since then Potassium magnesium sulphate from potassium chloride and kieserite showed the poor solubility of kieserite as. very senseless when using this procedure, be it now that one of the starting materials in the dissolved state is transferred to the other in acted in a solid state, or that both were used in dissolved form.

Aus der Literatur sind. eine-Reihe von vergeblichen Versuchen bekannt, durch Zusammenschmelzen bzw. durch Einwirkung hoher Hitzegrade unter gleichzeitiger Verwendung von Dampf aus Chlorkalium und Kieserit schwefelsaure Kalimagnesia bzw. Kaliumsulfat herzustellen.Are from the literature. a number of unsuccessful attempts are known by melting together or by exposure to high degrees of heat with simultaneous Use of steam from potassium chloride and kieserite sulfuric acid potassium magnesia or Manufacture Potassium Sulphate.

Es ist ferner bekannt, daß' der Kieserit in anhydrischer Form viel leichter löslich ist und dann in seiner Löslichkeit denn, Bittersalz nichts nachgibt. 'Der Ksaserit gibt zwar bereits bei Temperaturen oberhalb, 16o° Kristallwasser ab. Bekanntlich sind aber zur völligen Entwässerung des Kieserits. Temperaturen erforderlich, die nahezu an Rotglut heranreichen. Bei diesen Temperaturen sind daher so große Wärmemengen aufzuwenden und außerdem wird die erforderliche Apparatur durch. diese Temperaturen derartig beansprucht, daß dies Verfahren eine zweckmäßige Anwendung nicht finden konnte.It is also known that kieserite in anhydrous form is a lot is more easily soluble and then in its solubility because, Epsom salt does not give in anything. 'The ksaserite already gives off water of crystallization at temperatures above 16o °. It is well known, however, that the kieserite is completely drained. Temperatures required, that come close to red heat. At these temperatures, therefore, are so great Expend amounts of heat and, moreover, the necessary apparatus is carried out by. these Temperatures so stressed that this method is a convenient application could not find.

Diese in der Anwendung. hoher Temperaturen liegenden Schwierigkeiten, wenden nun durch das vorkegen@de neue Verfahren beseitigt.This in the application. difficulties lying in high temperatures, turn now eliminated by the vorkegen @ de new procedure.

Es wunde nämlich gefunden, daß ein Gemisch von Chlorkalium und Kieserit sich in der Praxis, bereits bei Temperaturen von 16o bis 2oo° leicht und vollkommen entwässern läßt. Auf diese Weise läßt sich nun ein Gemisch aus den zwei Salzen herstellen, die beide sehr leicht in Wasser oder Laugen löslich sind, so daß die Schwierigkeit, die bisher der Gewinnung von schwefelsaurer Kalimagnesia aus diesem Salzgemisch entgegenstand, beseitigt ist. Das Salzgemisch, in die leicht lösliche Form überführt, ergibt dann durch heißes Lösen, kaltes Ausrühren oder mit Hilfe des Deckverfahrens schwefelsaure Kalimagnesia.It was found that a mixture of potassium chloride and kieserite in practice, even at temperatures of 16o to 2oo ° easily and perfectly lets drain. In this way a mixture of the two salts can now be produced, both of which are very easily soluble in water or alkalis, so that the difficulty the hitherto the extraction of sulphate of potash magnesia from this salt mixture objection is eliminated. The salt mixture, converted into the easily soluble form, then results from hot dissolving, cold stirring or using the covering process sulfuric acid potassium magnesia.

Das Verfahren kann auch sinngemäß auf Chlornatrium angewendet werden.The process can also be applied analogously to sodium chloride.

Claims (1)

PATENT-ANsPRucH: Verfahren zur Herstellung schwefelsaurer Kalimagnesia aus. einem Gemisch von Chlorkalium: und Kieserit, dadurch gekennzeichnet, daß man zunächst !durch Erhitzen dieses Gemisches auf 16o bis 2oo° den darin enthaltenen Kieserit entwässert und darauf dieses Salzgemisch in geeigneten Lösungsmitteln auf Kalimagnesia verarbeitet.PATENT CLAIM: Process for the production of sulphate of potassium magnesia the end. a mixture of potassium chlorine: and kieserite, characterized in that one first! by heating this mixture to 160 to 200 ° that contained in it Kieserite dehydrates and then this salt mixture in suitable solvents Potash magnesia processed.
DE1920338088D 1920-08-05 1920-08-05 Process for the production of sulphate of potassium magnesia from a mixture of potassium chloride and kieserite Expired DE338088C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE338088T 1920-08-05

Publications (1)

Publication Number Publication Date
DE338088C true DE338088C (en) 1921-06-14

Family

ID=6222174

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920338088D Expired DE338088C (en) 1920-08-05 1920-08-05 Process for the production of sulphate of potassium magnesia from a mixture of potassium chloride and kieserite

Country Status (1)

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DE (1) DE338088C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915210C (en) * 1952-02-26 1954-07-19 Burbach Kaliwerke Ag Process for dissolving crude potash salts
DE1253689B (en) * 1961-06-28 1967-11-09 Sincat Soc Ind Catanese S P A Process for the pretreatment of kainite minerals

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE915210C (en) * 1952-02-26 1954-07-19 Burbach Kaliwerke Ag Process for dissolving crude potash salts
DE1253689B (en) * 1961-06-28 1967-11-09 Sincat Soc Ind Catanese S P A Process for the pretreatment of kainite minerals

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