AT72645B - Process for the production of solid carbonate of ammonia. - Google Patents
Process for the production of solid carbonate of ammonia.Info
- Publication number
- AT72645B AT72645B AT72645DA AT72645B AT 72645 B AT72645 B AT 72645B AT 72645D A AT72645D A AT 72645DA AT 72645 B AT72645 B AT 72645B
- Authority
- AT
- Austria
- Prior art keywords
- ammonia
- sublimation
- production
- carbonate
- solid carbonate
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 26
- 229910021529 ammonia Inorganic materials 0.000 title claims description 13
- 238000000034 method Methods 0.000 title claims description 8
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000007787 solid Substances 0.000 title claims description 3
- 238000000859 sublimation Methods 0.000 claims description 12
- 230000008022 sublimation Effects 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Crystals, And After-Treatments Of Crystals (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur'Herstellung von festem kohlensaurem Ammoniak.
Die Erfindung bezieht sich auf die Darstellung von kohlensaurem Ammoniak durch Aufeinanderwirken von Ammoniak, Kohlensäure und Wasserdampf in der Wärme und Abkühlung der gebildeten Dämpfe.
Das Stammpatent Nr. 72644 umfasst ein Verfahren, bei welchem die Abkühlung der gebildeten Dämpfe in Sublimationskammern vorgenommen wird, welche nur oben gekühlt werden, während sie unten warm gehalten werden.
Weitere Versuche haben ergeben, dass es nicht erforderlich ist, die Mischung von Ammoniak und Kohlensäuregas mit Wasser in einem besonderen, der Sublimationskammer vorgeschalteten Gefäss vorzunehmen, sondern dass man die Vereinigung der Komponenten unter Einhaltung der in dem Stammpatent gegebenen Vorschriften direkt in der Sublimationskammer vornehmen kann. Zu diesem Zwecke verfährt man beispielsweise wie folgt :
Man bringt in den unteren Teil der Sublimationskammer eine genügende Menge Wasser oder auch Salmiakgeist. In die Flüssigkeit leitet man durch genügend tief in dieselbe eintauchende Rohre die gasförmigen Komponenten, Kohlensäure und Ammoniak, in raschem Strom ein.
Hiebei erhitzt sich die Flüssigkeit so stark, dass an der Oberfläche derselben eine dauernde und flotte Absublimation von kohlensaurem Ammoniak stattfindet, welches sich in dem oberen gekühlten Teil des Sublimationsgefässes in dicken Krusten absetzt. Die Ergänzung des verbrauchten Wassers kann periodisch oder kontinuierlich, gegebenenfalls auch in Form von Wasserdampf, erfolgen. Das Verfahren zeichnet sich durch besondere Einfachheit in der Ausführung aus. Es liefert ebenso wie das Verfahren des Stammpatent6s ein sein-gutes und gleichmässiges Produkt bei Ausbeuten, welche die nach den bekannten Verfahren erzielten erheblich übertreffen.
Es ist bereits bekannt, kohlensaures Ammoniak dadurch herzustellen, dass man Kohlensäure oder Ammoniak oder beide, durch Wasser von 60 bis 90 leitet und das (ras-Dampfgemisch durch Vermittlung eines Mischrohres in gleichmässig gekühlte Sublimations- kammern @borführt. Von diesem bekannten Verfahren unterscheidet sich das vorliegende dadurch, dass die Herstellung des heissen Gas-Dampfgemisches und das Durchleiten durch ein in der Subhmationskammer vorgeschaltetes Mischrohr in Wegfall kommt, so dass der ganze Prozess sich in der Sublima@ionskammer selbst abspielt.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of solid carbonate of ammonia.
The invention relates to the preparation of carbonate of ammonia by the interaction of ammonia, carbonic acid and water vapor in the warmth and cooling of the vapors formed.
The parent patent no. 72644 comprises a process in which the cooling of the vapors formed is carried out in sublimation chambers, which are only cooled above, while they are kept warm below.
Further tests have shown that it is not necessary to mix ammonia and carbonic acid gas with water in a special vessel upstream of the sublimation chamber, but that the components can be combined directly in the sublimation chamber, while observing the regulations given in the parent patent . For this purpose one proceeds, for example, as follows:
A sufficient amount of water or ammonia is placed in the lower part of the sublimation chamber. The gaseous components, carbonic acid and ammonia, are introduced into the liquid in a rapid flow through pipes which are immersed sufficiently deep.
In doing so, the liquid heats up so strongly that a permanent and brisk sublimation of carbonate of ammonia takes place on its surface, which is deposited in the upper cooled part of the sublimation vessel in thick crusts. The water used can be replenished periodically or continuously, optionally also in the form of water vapor. The process is characterized by its particular simplicity in execution. Just like the process of the parent patent6, it delivers a product that is good and consistent, with yields that considerably exceed those obtained with the known processes.
It is already known to produce carbonate of ammonia by passing carbonic acid or ammonia or both through water from 60 to 90 and introducing the ras-vapor mixture through a mixing tube into uniformly cooled sublimation chambers @ bor the present one in that the production of the hot gas-vapor mixture and the passage through a mixing tube connected upstream in the sublimation chamber are no longer necessary, so that the whole process takes place in the sublimation chamber itself.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE72645X | 1914-03-21 | ||
| DE72644X | 1914-03-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT72645B true AT72645B (en) | 1916-10-25 |
Family
ID=25749618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT72645D AT72645B (en) | 1914-03-21 | 1914-09-18 | Process for the production of solid carbonate of ammonia. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT72645B (en) |
-
1914
- 1914-09-18 AT AT72645D patent/AT72645B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AT72645B (en) | Process for the production of solid carbonate of ammonia. | |
| DE1006400B (en) | A tower provided with filling bodies for the absorption of hydrogen chloride from gases | |
| DE967375C (en) | Process and device for the production of chlorine dioxide | |
| DE3929300C3 (en) | Process for the continuous production of tin tetrachloride | |
| DE1158257B (en) | Process for the production of high molecular weight polyamides | |
| DE853587C (en) | Process for the production of phosgene | |
| DE285498C (en) | ||
| DE557617C (en) | Process for utilizing the amounts of energy produced in exothermic reactions | |
| AT118009B (en) | Process for the purification of wastewater containing cyanide. | |
| AT72644B (en) | Process for the production of solid carbonate of ammonia. | |
| AT79026B (en) | Process for obtaining chlorine from hydrogen chloride. | |
| AT72820B (en) | Method and apparatus for drying centrifuged ammonium bicarbonate. | |
| US216323A (en) | Improvement in the manufacture of sulphate of ammonia | |
| DE703951C (en) | Process for the production of nitrates from chlorides and nitric acid | |
| DE472421C (en) | Process for the production of higher chlorination products of methane | |
| DE494105C (en) | Evaporator | |
| AT79306B (en) | Process for carrying out gas reactions. | |
| AT49477B (en) | Process for the preparation of solid, carbonate ammonia. | |
| DE658478C (en) | Device for the production of ammonium sulphate nitrate suitable for spreading | |
| AT135448B (en) | Process for the production of preparations containing sulfur, which produce colloidal solutions with water. | |
| AT96814B (en) | Method and apparatus for producing crystallized carbonate of soda. | |
| DE593369C (en) | Method and device for carrying out catalytic exothermic gas reactions | |
| AT76174B (en) | Process and device for the continuous production of a warm, saturated ammonium bicarbonate liquor for the purpose of obtaining crystallized ammonium bicarbonate. | |
| DE21708C (en) | Apparatus for the continuous distillation of liquids containing ammonia | |
| AT88668B (en) | Process for the production of chlorination products. |