AT128845B - Process for the production of a solid, non-hygroscopic ammonium sulphate nitrate. - Google Patents
Process for the production of a solid, non-hygroscopic ammonium sulphate nitrate.Info
- Publication number
- AT128845B AT128845B AT128845DA AT128845B AT 128845 B AT128845 B AT 128845B AT 128845D A AT128845D A AT 128845DA AT 128845 B AT128845 B AT 128845B
- Authority
- AT
- Austria
- Prior art keywords
- nitrate
- solid
- ammonium sulphate
- production
- mixture
- Prior art date
Links
- KKEOZWYTZSNYLJ-UHFFFAOYSA-O triazanium;nitrate;sulfate Chemical compound [NH4+].[NH4+].[NH4+].[O-][N+]([O-])=O.[O-]S([O-])(=O)=O KKEOZWYTZSNYLJ-UHFFFAOYSA-O 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 6
- 239000007787 solid Substances 0.000 title description 4
- 238000004519 manufacturing process Methods 0.000 title description 3
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 4
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000012047 saturated solution Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 238000010410 dusting Methods 0.000 claims 1
- 150000003839 salts Chemical class 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000011833 salt mixture Substances 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
Landscapes
- Fertilizers (AREA)
Description
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Verfahren zur Herstellung eines festen, nicht hygroskopischen Ammonsulfatsalpeters.
Es ist bereits versucht worden, einen festen nicht hygroskopischen Ammonsulfatsalpeter dadurch zu gewinnen, dass das Salz oder eine Lösung mit Kalksalpeter versetzt und das Gemisch unter Bewegung getrocknet wird. Es hat sich nun ergeben, dass besonders günstige Wirkungen erzielt werden, wenn der Kalksalpeter nur in Mengen bis zu 20%, berechnet auf die Gesamtmenge, angewandt wird. Es ist demnach keineswegs erforderlich, den Kalksalpeter in solcher Menge zur Anwendung zu bringen, dass eine vollständige Umsetzung des in dem Mischsalz enthaltenen Ammonsulfat möglich ist. Diese Erkenntnis ist wichtig, weil bisher im allgemeinen angenommen wurde, dass zur Herstellung eines nicht hygroskopischen Ammonsulfatsalpeters soviel Calciumsalz erforderlich ist, wie für die Überführung der gesamten Menge des Ammonsulfat in Calciumsulfat gebraucht wird.
Die Herstellung des kalbsalpeterhaltigen Ammonsulfatsalpeters kann in beliebiger Weise erfolgen.
Es kann beispielsweise das Mischsalz oder seine Lösung mit der vorbezeichneten Menge versetzt und das Gemisch unter Bewegung getrocknet werden. Es kann der Kalksalpeter in starker bzw. gesättigter Lösung auf die trockenen oder wasserhaltigen Ammonsulfatsalpetergemische in beliebiger Weise aufgebracht werden, womit eine Trocknung unter Bewegung verbunden werden kann. Weiter können Mischsalze oder Lösungen mit trockenem oder feuchtem Kalksalpeter gemischt und das Gemisch unter Bewegung getrocknet werden.
Das Verfahren kann z. B. wie folgt ausgeführt werden :
Beispiel l : In eine mit Dampfmantel versehene, beheizte Schnecke gibt man stündlich eine feste Mischung von 80 kg Ammonnitrat mit 120 kg Ammonsulfat. Gleichzeitig übersprüht man an dem einen Ende der Schnecke das eintretende Salzgemisch mittels Düsen oder mit Löchern versehenem Verteilerrohr je Stunde mit 14 kg 500 wanner, 70 gewichtsprozentiger Kalksalpeterlauge. Das gewonnene getrocknete Produkt (213 kglh) ist von körniger Struktur.
Beispiel 2 : In einer geräumigen Mischmaschine gibt man chargenweise oder kontinuierlich zu 300 kg ungetrocknetem Montansalpeter mit 26% N2 und 30 HO im dünnen Strahl 33 kg einer kalten 61% igen Kalksalpeterlauge. Nach guter Durchmischung wird das feuchte Salzgemisch in einem Drehofen bei 90-1000 getrocknet. Es fällt ein gut streufähiger Dünger an mit 25-1% N und 3-7% Wasser.
PATENT-ANSPRÜCHE :
1. Verfahren zur Herstellung eines festen, nicht hygroskopischen Ammonsulfatsalpeters, dadurch gekennzeichnet, dass Ammonsulfatsalpeter oder seine Lösungen mit Kalksalpeter in einer Menge bis zu 20%, berechnet auf die Gesamtmenge, versetzt wird.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of a solid, non-hygroscopic ammonium sulphate nitrate.
Attempts have already been made to obtain a solid, non-hygroscopic ammonium sulphate nitrate by adding calcium nitrate to the salt or a solution and drying the mixture while moving. It has now been found that particularly beneficial effects are achieved if the calcium nitrate is only used in amounts of up to 20%, calculated on the total amount. It is therefore by no means necessary to use calcium nitrate in such an amount that complete conversion of the ammonium sulfate contained in the mixed salt is possible. This finding is important because it has hitherto generally been assumed that the amount of calcium salt required to produce a non-hygroscopic ammonium sulfate nitrate is as much as is required to convert the entire amount of ammonium sulfate into calcium sulfate.
The ammonium sulphate nitrate containing calf nitrate can be produced in any way.
For example, the above-mentioned amount can be added to the mixed salt or its solution and the mixture can be dried with movement. The calcium nitrate can be applied in a strong or saturated solution to the dry or water-containing ammonium sulphate nitrate mixtures in any way, which can be combined with drying with agitation. Furthermore, mixed salts or solutions can be mixed with dry or moist calcium nitrate and the mixture can be dried with agitation.
The method can e.g. B. can be carried out as follows:
Example 1: A solid mixture of 80 kg of ammonium nitrate with 120 kg of ammonium sulfate is added every hour to a heated screw provided with a steam jacket. At the same time, the entering salt mixture is sprayed over at one end of the screw by means of nozzles or a distributor pipe provided with holes with 14 kg of 500 wanner, 70 percent by weight calcium nitrate liquor per hour. The dried product obtained (213 kg / h) has a granular structure.
Example 2: In a spacious mixing machine, 33 kg of a cold 61% calcium nitrate lye are added in a thin stream to 300 kg of undried montan nitrate with 26% N2 and 30 HO in batches or continuously. After thorough mixing, the moist salt mixture is dried in a rotary oven at 90-1000. A well spreadable fertilizer is obtained with 25-1% N and 3-7% water.
PATENT CLAIMS:
1. A process for the production of a solid, non-hygroscopic ammonium sulfate nitrate, characterized in that ammonium sulfate nitrate or its solutions are mixed with calcium nitrate in an amount of up to 20%, calculated on the total amount.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT128845T | 1930-02-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT128845B true AT128845B (en) | 1932-06-25 |
Family
ID=29274475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT128845D AT128845B (en) | 1930-02-10 | 1930-02-10 | Process for the production of a solid, non-hygroscopic ammonium sulphate nitrate. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT128845B (en) |
-
1930
- 1930-02-10 AT AT128845D patent/AT128845B/en active
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