DE390395C - Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate - Google Patents

Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate

Info

Publication number
DE390395C
DE390395C DEH88613D DEH0088613D DE390395C DE 390395 C DE390395 C DE 390395C DE H88613 D DEH88613 D DE H88613D DE H0088613 D DEH0088613 D DE H0088613D DE 390395 C DE390395 C DE 390395C
Authority
DE
Germany
Prior art keywords
nitrate
calcium
chloride
potassium
preparation
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
DEH88613D
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.)
E DE HAEEN CHEM FAB LIST G M B
Original Assignee
E DE HAEEN CHEM FAB LIST G M B
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 E DE HAEEN CHEM FAB LIST G M B filed Critical E DE HAEEN CHEM FAB LIST G M B
Priority to DEH88613D priority Critical patent/DE390395C/en
Application granted granted Critical
Publication of DE390395C publication Critical patent/DE390395C/en
Expired legal-status Critical Current

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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
    • C01D9/00—Nitrates of sodium, potassium or alkali metals in general
    • C01D9/08—Preparation by double decomposition
    • C01D9/12—Preparation by double decomposition with nitrates or magnesium, calcium, strontium, or barium

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

Description

Verfahren zur Darstellung von Kalisalpeter und Calciumchlorid aus Kaliumchlorid und Calciumnitrat. Die Herstellung von Kalisalpeter durch Umsetzung von Lösungen von Magnesium-bzw. Calciumnitrat mit Chlorkalium in der Kälte oder in der Wärme ist, wie gefunden wurde, eine unvollkommene. Es scheidet sich nur ein Teil des Kalisalpeters aus, während erhebliche Mengen von Chlorkalium und Magnesia bzw. Kalksalpeter in Lösung bleiben.Process for the preparation of potassium nitrate and calcium chloride Potassium chloride and calcium nitrate. The manufacture of potash nitrate through implementation of solutions of magnesium or. Calcium nitrate with potassium chloride in the cold or warmth is found to be imperfect. It just settles in Part of the potassium nitrate, while significant amounts of potassium chloride and magnesia or calcium nitrate remain in solution.

Um aus dieser Lösung die wertvollen Rohmaterialien, namentlich die Nitrate, vollständig zu gewinnen, dampft man die Lösung ein. Bei Anwendung von Magnesiumnitrat kann man eine Ausscheidung des Magnesiumchlorides als Künstlichen Carnallit gewinnen. Bei Anwendung von Calciumnitrat bekommt man aber eine Lösung von Calciumchlorid, die kein Doppelsalz bildet. Um aus der Lösung von Calciumchlorid das nicht zu Kalisalpeter umgesetzte Chlorkalium und Calciumnitrat auszuscheiden, dampft man die Lösung bis zu einem Gehalt von etwa 32 bis 35 Prozent Chlorcalcium ein. Nach Abkühlung kristallisiert ein Teil des noch in Lösung befindlichen Kalisalpeters mit einem Gemisch von Chlorkalium und Calciumnitrat aus. Dieses Salzgemisch läßt sich durch Umkristallisation trennen, falls es nicht ohne weiteres als Düngemittel in der Landwirtschaft verwendet wird. Nach dieser Kristallisation bei gewöhnlicher Temperatur bleibt in der Lösung immer noch etwas Calciumnitrat, das man durch Tiefkühlung auf etwa io° unter Null zum größten Teil gewinnen kann. Man erhält dann eine Calciumchloridlösung mit geringen Verlusten von Calciumnitrat.In order to completely extract the valuable raw materials, namely the nitrates, from this solution, the solution is evaporated. If magnesium nitrate is used, the magnesium chloride can be excreted as artificial carnallite. When using calcium nitrate, however, you get a solution of calcium chloride that does not form a double salt. In order to separate the potassium chloride and calcium nitrate not converted into potassium nitrate from the solution of calcium chloride, the solution is evaporated to a content of about 32 to 35 percent calcium chloride. After cooling, part of the potassium nitrate still in solution crystallizes out with a mixture of potassium chloride and calcium nitrate. This salt mixture can be separated by recrystallization if it is not readily used as a fertilizer in agriculture. After this crystallization at normal temperature, some calcium nitrate still remains in the solution, most of which can be obtained by freezing to about 10 ° below zero. A calcium chloride solution is then obtained with little loss of calcium nitrate.

Claims (1)

PATENTANSPRUCH: Verfahren zur Darstellung von Kalisalpeter und Calciumchlorid aus Kaliumchlorid und Calciumnitrat, dadurch gekennzeichnet, daß man die gebildete Calciumchloridlösung auf tiefe Temperatur von etwa io° unter Null abkühlt, um das in Lösung gebliebene Calciumnitrat nahezu vollständig zurückzugewinnen. PATENT CLAIM: Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate, characterized in that the calcium chloride solution formed is cooled to a low temperature of about 10 ° below zero in order to almost completely recover the calcium nitrate which has remained in solution.
DEH88613D 1922-02-01 1922-02-01 Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate Expired DE390395C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH88613D DE390395C (en) 1922-02-01 1922-02-01 Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH88613D DE390395C (en) 1922-02-01 1922-02-01 Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate

Publications (1)

Publication Number Publication Date
DE390395C true DE390395C (en) 1924-02-18

Family

ID=7165345

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH88613D Expired DE390395C (en) 1922-02-01 1922-02-01 Process for the preparation of potassium nitrate and calcium chloride from potassium chloride and calcium nitrate

Country Status (1)

Country Link
DE (1) DE390395C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361522A (en) * 1963-03-28 1968-01-02 Lonza Ag Process for the preparation of potassium nitrate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361522A (en) * 1963-03-28 1968-01-02 Lonza Ag Process for the preparation of potassium nitrate

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