DE336876C - Process for obtaining a non-explosive ammonium nitrate mixture - Google Patents

Process for obtaining a non-explosive ammonium nitrate mixture

Info

Publication number
DE336876C
DE336876C DE1918336876D DE336876DD DE336876C DE 336876 C DE336876 C DE 336876C DE 1918336876 D DE1918336876 D DE 1918336876D DE 336876D D DE336876D D DE 336876DD DE 336876 C DE336876 C DE 336876C
Authority
DE
Germany
Prior art keywords
ammonium nitrate
obtaining
nitrate mixture
explosive
explosive ammonium
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
DE1918336876D
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of DE336876C publication Critical patent/DE336876C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C1/00Ammonium nitrate fertilisers
    • C05C1/02Granulation; Pelletisation; Stabilisation; Colouring

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Description

Verfahren zur Gewinnung eines _nicht explosiven Ammoniumnitratgemisches. Der Verwendung des Ammoniumnitrats in der Landwirtschaft stehen seine explosiven und zerfließlichen Eigenschaften entgegen. Iss wird daher das Ammoniak auch heute noch fast ausschließlich in Form des Sulfats in den Handel gebracht. Dieses Sulfat kann vorteilhaft zur Ersparung von Schwefelsäure durch Umsetzung von Ammoniak und Kohlensäure mit Gips dargestellt werden, wobei ein kalziuinkarbonathaltiger Schlauem als Nebenprodukt abfällt.Process for obtaining a _non-explosive ammonium nitrate mixture. The uses of ammonium nitrate in agriculture are explosive and dissolvable properties. Therefore, the ammonia is still eaten today still almost exclusively marketed in the form of sulphate. This sulfate can be advantageous for saving sulfuric acid by converting ammonia and Carbonic acid can be represented with plaster of paris, with a clever one containing calcium carbonate falls off as a by-product.

Es wurde nun gefunden, daß man durch Vermischen von Ammoniumnitrat mit dem bei der Umsetzung von Kalziumsulfat mit Ammoniumkarbonat bzw. Ammoniak und Kohlensäure abfallenden Kalkschlamm ein Produkt erhält, welches nicht mehr explosiv ist, dabei auch keine störende Zerflließlichkeit zeigt und daher vorzüglich als Düngemittel geeignet ist. Man hat zwar schon vorgeschlagen, dem Ammon.iumnitrat durch Zusatz von Kalziumkarbonat seine Zerfließlichkeit zu nehmen. Die Verwendung des Kalkrückstandes -von der erwähnten Herkunft bietet indessen besondere Vorteile, nicht nur weil dieses Produkt wegen seiner feinen Beschaffenheit besonders gut geeignet ist, sondern weil auf diese Weise auch die kleinen Mengen Ammoniumsalz, die im Kalkschlamm noch leicht enthalten sind, mit nutzbar gemacht werden.It has now been found that by mixing ammonium nitrate with that in the implementation of calcium sulfate with ammonium carbonate or ammonia and Carbonated lime sludge contains a product that is no longer explosive is, does not show any disruptive deliquescence and is therefore excellent as Fertilizer is suitable. It has already been proposed to use ammonium nitrate to reduce its liquidity by adding calcium carbonate. The usage of the lime residue - of the origin mentioned offers special advantages, not only because this product is particularly suitable because of its fine texture is, but because in this way also the small amounts of ammonium salt that are in the lime sludge are still easily included, with being harnessed.

Ferner geben überraschenderweise Gemische von Ammonnitrat mit Kalkrückstand der oben angegebenen Herkunft beim Lagern an der Luft bei gewöhnlicher Temperatur kaum merklich Ammoniak ab, während Gemische von. Ammonnitrat mit Kalkstein oder Kreide von gleichem Feinheitsgrade beträchtliche Mengen Ammoniak verlieren. Das erwähnte lästige Abfallprodukt von der Ammonsulfatherstellung findet auf diese Weise eine- sehr vorteilhafte Verwendung.Furthermore, surprisingly, there are mixtures of ammonium nitrate with lime residue of the origin indicated above when stored in the air at ordinary temperature barely noticeable ammonia, while mixtures of. Ammonium nitrate with limestone or Chalk of the same fineness will lose considerable amounts of ammonia. That mentioned annoying waste product from ammonium sulphate production takes place in this way a very beneficial use.

Es genügt hierzu schon ein Verhältnis von 3o Teilen trockenem Kalkschlamm zu 7o Teilen Ammoniumn.itrat, noch sicherer sind jedoch Mischungen etwa im Verhältnis von 4o : 6o oder 5o : 5o, während eine zu große Kalkmenge, etwa über das Verhältnis 6o : 4o, wegen der zu starken Herabsetzung des Stickstoffgehaltes unzweckmäßig ist. Beispielsweise werden 6o Teile geschleudertes Ammoniumnitrat mit 4o Teilen getrocknetem tonhaltigen Kalziumkarbonat gemischt, das bei der Umsetzung von Gips mit Ammoniumkarbonat in Gegenwart von Wasser neben Ammoniumsulfat erhalten wurde.A ratio of 30 parts of dry lime sludge is sufficient for this to 70 parts of ammonium nitrate, but mixtures approximately in the same ratio are even safer from 4o: 6o or 5o: 5o, while too large an amount of lime, about the ratio 6o: 4o, is inexpedient because of the excessive reduction in the nitrogen content. For example, 60 parts of centrifuged ammonium nitrate are mixed with 40 parts of dried clay-containing calcium carbonate mixed with ammonium carbonate when gypsum is converted was obtained in the presence of water in addition to ammonium sulfate.

Claims (1)

PATENT-ANSPRUCII: Verfahren zur Gewinnung eines nicht explosiven Ammoniumnitratgemisches, dadurch gekennzeichnet, daß festes Ammoniumnitrat mit dem bei der Umsetzung von Gips mit Ammoniak und Kohlensäure erhaltenen Kalkrückstand vermischt wird.PATENT-ANSPRUCII: Process for obtaining a non-explosive ammonium nitrate mixture, characterized in that solid ammonium nitrate with the in the implementation of Gypsum with ammonia and carbonic acid is mixed with lime residue.
DE1918336876D 1918-06-11 1918-06-11 Process for obtaining a non-explosive ammonium nitrate mixture Expired DE336876C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE336876T 1918-06-11

Publications (1)

Publication Number Publication Date
DE336876C true DE336876C (en) 1921-05-18

Family

ID=6220851

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1918336876D Expired DE336876C (en) 1918-06-11 1918-06-11 Process for obtaining a non-explosive ammonium nitrate mixture

Country Status (1)

Country Link
DE (1) DE336876C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963605C (en) * 1953-01-06 1957-05-09 Gewerk Victor Chem Werke Process for reducing the calcium nitrate content in calcium ammonium nitrate
DE966806C (en) * 1952-06-19 1957-09-12 Dr Otto Kippe Process for the production of nitrogenous fertilizers with simultaneous production of magnesia or magnesium hydroxide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966806C (en) * 1952-06-19 1957-09-12 Dr Otto Kippe Process for the production of nitrogenous fertilizers with simultaneous production of magnesia or magnesium hydroxide
DE963605C (en) * 1953-01-06 1957-05-09 Gewerk Victor Chem Werke Process for reducing the calcium nitrate content in calcium ammonium nitrate

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