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DE523435C - Process for the production of potassium magnesium carbonate (Engel's salt) - Google Patents

Process for the production of potassium magnesium carbonate (Engel's salt)

Info

Publication number
DE523435C
DE523435C DE1926523435D DE523435DD DE523435C DE 523435 C DE523435 C DE 523435C DE 1926523435 D DE1926523435 D DE 1926523435D DE 523435D D DE523435D D DE 523435DD DE 523435 C DE523435 C DE 523435C
Authority
DE
Germany
Prior art keywords
salt
engel
production
magnesium carbonate
potassium
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
DE1926523435D
Other languages
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 Chemie AG
Original Assignee
Kali Chemie 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 Kali Chemie AG filed Critical Kali Chemie AG
Application granted granted Critical
Publication of DE523435C publication Critical patent/DE523435C/en
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00—Compounds of magnesium
    • C01F5/24—Magnesium carbonates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Verfahren zur Herstellung von Kaliummagnesiumcarbonat (Engel'schem Salz) Im Patent 5o4 166 ist ein Verfahren beschrieben, aus Magnesiumoxyd bzw. Magnesiumhydroxyd und Kalisalzen in einem Arbeitsgange Engel'sches Salz (Kaliuminagnesiumcarbonat) herzustellen.Process for the production of potassium magnesium carbonate (Engel'schem Salt) In patent 5o4 166 a process is described from magnesium oxide or magnesium hydroxide and potassium salts in one operation Engel's salt (potassium magnesium carbonate) to manufacture.

Während man sonst im Großbetrieb bei der Herstellung von Engel'schem Salz - Magnesiumcarbonattrihydrat verwandte. dient also nach diesem Verfahren das Magnesiumoxyd bzw. -hydroxyd als Ausgangsmaterial. Wesentlich ist bei dem Verfahren, daß während der Umsetzung stets ein Überschuß von Kohlensäure zugegen ist.While otherwise in large-scale production of Engel'schem Salt - related magnesium carbonate trihydrate. So this is what serves according to this procedure Magnesium oxide or hydroxide as the starting material. What is essential in the process is that an excess of carbonic acid is always present during the reaction.

Nach dem Beispiel des Patents 504 166 wird bei dieser Umsetzung mit einer gesättigten Chlorkaliumlösung, d. h. einer Lösung, die --8o g Chlorkalium im Liter enthält, gearbeitet. Auch bei dem älteren Patent 143 595, bei dem zunächst Magnesiumcarbonattrihvdrat und aus ihm dann in Gegenwart von Chlorkalium unter geeigneten Bedingungen das Engel'sche Salz gewonnen wird, wird als solche geeignete Bedingung die Anwendung sehr hoher Chlorkaliumkonzentrationen vorgeschrieben.According to the example of the patent 504 166 is in this implementation with a saturated potassium chloride solution, d. H. a solution containing --8o g of potassium chloride contains in the liter, worked. Also in the older patent 143 595, in which initially Magnesiumcarbonattrihvdrat and from it then in the presence of potassium chloride under suitable Conditions the Engel'sche salt is obtained is as such suitable condition the use of very high potassium chlorine concentrations is prescribed.

Es wurde nun gefunden, daß bei diesem direkten Verfahren der Herstellung des Engelsehen Salzes aus Magnesiumoxyd bzw. Magnesiumhydroxyd in Gegenwart eines Kohlensäureüberschusses Engel'sches Salz in guter Ausbeute auch dann gewonnen werden kann, wenn das Chlorkalium nur in relativ geringer Konzentration, z. B. von z to g im Liter, benutzt wird. Der große Vorteil dieses Arbeitens mit verdünnten Chlorkaliumlösungen besteht darin, daß bei gleich guter Ausbeute an Engel'schem Salz wie beim Arbeiten mit der konzentrierten Chlorkaliumlösung ein so chlorkaliumarmes Filtrat erhalten wird, z. B. mit nur 17 g Chlorkalium im Liter, daß die kostspielige Aufarbeitung des Filtrates durch Eindampfen zwecks teilweiser Rückgewinnung des Chlorkaliums als Reincarnallit nicht erforderlich wird.It has now been found that in this direct process of producing the Engelsehen salt from magnesium oxide or magnesium hydroxide in the presence of excess carbonic acid, Engel's salt can be obtained in good yield even if the potassium chloride is only in a relatively low concentration, e.g. B. from z to g per liter is used. The great advantage of working with dilute potassium chloride solutions is that, with the same good yield of Engel's salt as when working with the concentrated potassium chloride solution, a filtrate that is so low in chlorine potassium is obtained, e.g. B. with only 17 g of potassium chlorine per liter that the expensive work-up of the filtrate by evaporation for the purpose of partially recovering the potassium chlorine as pure carnallite is not necessary.

Claims (1)

PATENTANSPRUCH: Ausbildung des Verfahrens zur Herstellung von Kaliummagnesiumcarbonat (Engel'schem Salz) nach Patent 504 166 aus Magnesiumoxyd bzw. Magnesiumhydroxvd, Kalisalzen und Kohlensäure in einem Arbeitsgange, wobei während der Umsetzung stets ein Überschuß von Kohlensäure vorhanden sein muß, dadurch gekennzeichnet, daß statt der nach dem Hauptpatent verwandten konzentrierten Chlorkaliumlösung eine solche benutzt wird, die weniger als halb konzentriert ist, also z. B. nur etwa r ro g Chlorkalium im Liter enthält.PATENT CLAIM: Development of the process for the production of potassium magnesium carbonate (Engel's salt) according to patent 504 166 made of magnesium oxide or magnesium hydroxide, Potash salts and carbonic acid in one operation, and always during the implementation an excess of carbonic acid must be present, characterized in that instead of the concentrated potassium chloride solution used in the main patent is used that is less than half concentrated, so z. B. only about r ro g Contains potassium chloride per liter.
DE1926523435D 1926-06-09 1926-06-09 Process for the production of potassium magnesium carbonate (Engel's salt) Expired DE523435C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE523435T 1926-06-09

Publications (1)

Publication Number Publication Date
DE523435C true DE523435C (en) 1931-04-23

Family

ID=6551968

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1926523435D Expired DE523435C (en) 1926-06-09 1926-06-09 Process for the production of potassium magnesium carbonate (Engel's salt)

Country Status (1)

Country Link
DE (1) DE523435C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021341B (en) * 1954-12-07 1957-12-27 Sarl Soc D Etudes Chimiques Po Process for the production of Engel's salt

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021341B (en) * 1954-12-07 1957-12-27 Sarl Soc D Etudes Chimiques Po Process for the production of Engel's salt

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