DE504344C - Process for the production of potassium magnesium carbonate (Engel's salt) under pressure - Google Patents

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

Info

Publication number
DE504344C
DE504344C DES74281D DES0074281D DE504344C DE 504344 C DE504344 C DE 504344C DE S74281 D DES74281 D DE S74281D DE S0074281 D DES0074281 D DE S0074281D DE 504344 C DE504344 C DE 504344C
Authority
DE
Germany
Prior art keywords
salt
production
engel
magnesium carbonate
under pressure
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
DES74281D
Other languages
German (de)
Inventor
Dr Erich Dockhorn
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
Priority to DES74281D priority Critical patent/DE504344C/en
Application granted granted Critical
Publication of DE504344C publication Critical patent/DE504344C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01FCOMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F5/00Compounds of magnesium
    • C01F5/24Magnesium carbonates

Landscapes

  • 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 (Engelschem Salz) unter Druck In dem Patent 5o1 178 ist ein Verfahren zur Herstellung von Engelschem Salz beschrieben, nach dem der Partialdruck der Kohlensäure bei der Reaktion erheblich gegenüber dem, mit dem man bisher zu arbeiten pflegte, heraufgesetzt wird. Dadurch wird nicht nur erreicht, daß man statt mit reinen Kaliumsalzen mit Rohsalzen oder Chlornatrium enthaltenden Langen arbeiten kann, sondern auch, daß man die bis dahin stets eingehaltene Temperaturgrenze von 2o° überschreiten darf: bei Steigerung des Partialdruckes der Kohlensäure auf 5 Atmosphären kann nämlich die Temperatur ohne Schaden auf 25° und höher gesteigert werden, was den erheblichen Vorteil besitzt, daß die sonst zwecks Fortführung der bei der Reaktion gebildeten Wärme erforderliche Kühlung unterbleiben kann.Process for the production of potassium magnesium carbonate (Engelschem Salt) under pressure In the patent 5o1 178 is a process for the production of Engelschem Salt described, according to which the partial pressure of the carbonic acid in the reaction is considerable compared to what one used to work with up to now. Through this is not only achieved that one instead of using pure potassium salts with crude salts or Sodium chlorine-containing lengths can work, but also that you can do that by then the temperature limit of 2o ° that is always maintained: when increasing the Partial pressure of carbonic acid to 5 atmospheres can namely the temperature without Damage can be increased to 25 ° and higher, which has the significant advantage that the heat otherwise required for the purpose of continuing the heat generated in the reaction Cooling can be omitted.

Es wurde nun die Beobachtung gemacht, das unter den in dem Hauptpatent angegebenen Bedingungen die Reaktion dadurch beschleunigt werden kann, daß man durch starkes Rühren eine intensive Untermischung der Kohlensäure bewirkt.The observation has now been made that among those in the main patent specified conditions the reaction can be accelerated that one by vigorous stirring causes an intensive mixing of the carbon dioxide.

Der Erfinder des Engelschen Salzes hat in seinem deutschen Patent 15 218 aus dem Jahre 1881 angegeben, daß man bei der Herstellung des Doppelsalzes rühren kann, wobei sich sehr kleine Kristalle bilden. Um die Ausscheidung des Engelschen Salzes in dieser feinen, für die Weiterverarbeitung ungeeigneten Form zu vermeiden, hat man bei der bisher üblichen Fabrikationsweise ein Rühren des Reaktionsgemisches gerade vermieden. Überraschenderweise scheidet sich aber bei hohen Partialdrucken der Kohlensäure und Temperaturen, die erheblich über 2o° liegen, aber 5o° nicht übersteigen sollen, das Engelsche Salz bei intensiver Rührung in grobkristalliner, zur Weiterverarbeitung geeigneter Form aus.The inventor of Engel's salt has in his German patent 15 218 from the year 1881 stated that one in the production of the double salt can stir, whereby very small crystals form. About the elimination of Engelschen Avoiding salt in this fine form, which is unsuitable for further processing, one has to stir the reaction mixture with the method of manufacture customary up to now just avoided. Surprisingly, however, it separates at high partial pressures the carbon dioxide and temperatures that are considerably above 20 °, but not 50 ° should exceed, the Engel's salt with intensive stirring in coarsely crystalline, suitable form for further processing.

Damit wird insofern ein erheblicher Vorteil erreicht, als die Umsetzung und Abscheidung des Salzes, die nach dem bisherigen Verfahren etwa 12 Stunden in Anspruch nahm, in einer weit kürzeren Zeit, z. B. bei Temperaturen von 45' und einem Partialdruck der Kohlensäure von 18 Atmosphären unter Verwendung von Sylvinit als Kalisalz in zwei Stunden, zu Ende geführt werden kann. Für intensives Untermischen der Kohlensäure ist dabei durch geeignete Rührvorrichtungen zu sorgen. Arbeitet man bei niedrigeren Temperaturen, so kann der Partialdruck der Kohlensäure geringer sein.This achieves a considerable advantage as the implementation and deposition of the salt, which takes about 12 hours in the previous process Took in a much shorter time, e.g. B. at temperatures of 45 'and a Carbonic acid partial pressure of 18 atmospheres using sylvinite as Potash salt in two hours, can be completed. For intensive mixing The carbon dioxide must be ensured by suitable stirring devices. Is working one at lower Temperatures, the partial pressure of the Be less carbonated.

Claims (1)

PATENTANSPRUCH: Ausbildung des Verfahrens zur Herstellung von Kaliummagnesiumcarbonat (Engelschem Salz) nach Patent 50, 178 zwecks Erzielung grobkristalliner Abscheidungen, dadurch gekennzeichnet, daß man die Ausscheidung des Salzes bei Temperaturen zwischen 25 und 5o° C durchführt, wobei in an sich bekannter Weise gerührt werden kann.PATENT CLAIM: Design of the process for the production of potassium magnesium carbonate (Engel's salt) according to Patent 50, 178 for the purpose of obtaining coarse crystalline deposits, characterized in that the salt is deposited at temperatures between 25 and 50 ° C, stirring in a manner known per se can.
DES74281D 1926-04-28 1926-04-28 Process for the production of potassium magnesium carbonate (Engel's salt) under pressure Expired DE504344C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES74281D DE504344C (en) 1926-04-28 1926-04-28 Process for the production of potassium magnesium carbonate (Engel's salt) under pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES74281D DE504344C (en) 1926-04-28 1926-04-28 Process for the production of potassium magnesium carbonate (Engel's salt) under pressure

Publications (1)

Publication Number Publication Date
DE504344C true DE504344C (en) 1930-08-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DES74281D Expired DE504344C (en) 1926-04-28 1926-04-28 Process for the production of potassium magnesium carbonate (Engel's salt) under pressure

Country Status (1)

Country Link
DE (1) DE504344C (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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