DE393480C - Process for the production of sublimed ammonia - Google Patents

Process for the production of sublimed ammonia

Info

Publication number
DE393480C
DE393480C DEC33861D DEC0033861D DE393480C DE 393480 C DE393480 C DE 393480C DE C33861 D DEC33861 D DE C33861D DE C0033861 D DEC0033861 D DE C0033861D DE 393480 C DE393480 C DE 393480C
Authority
DE
Germany
Prior art keywords
ammonia
sublimed
production
hood
heating
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
DEC33861D
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.)
CHEM FAB TETEROW AKT GES
Original Assignee
CHEM FAB TETEROW AKT GES
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 CHEM FAB TETEROW AKT GES filed Critical CHEM FAB TETEROW AKT GES
Priority to DEC33861D priority Critical patent/DE393480C/en
Application granted granted Critical
Publication of DE393480C publication Critical patent/DE393480C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01CAMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00Ammonia; Compounds thereof
    • C01C1/16Halides of ammonium
    • C01C1/164Ammonium chloride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Herstellung von sublimiertem Salmiak. Wie bekannt, erfolgt die Sublimation von Salmiak in der Art, daß in eine Schale oder einen Kessel der pulverförmige und kristallinische Salmiak mit oder ohne Beimengungen gegeben wird, worauf der Kessel durch eine Art Haube geschlossen und dann während einer längeren Zeitdauer beheizt wird. Nach Beendigung der Heizperiode findet sich der sublimierte Salmiak der Form der Haube angepaßt oben in der Haube. Die Haube wird gelöst und der Salmiak daraus losgeschlagen.Process for the production of sublimed ammonia. As known, done the sublimation of ammonia in the manner that in a bowl or a cauldron of the powdered and crystalline ammonia is given with or without admixtures, whereupon the kettle is closed by a kind of hood and then for a longer period Duration is heated. After the end of the heating season, there is the sublimated one Salmiak adapted to the shape of the hood at the top of the hood. The hood is loosened and the ammonia knocked out of it.

Der Prozeß benötigt ein Vielfaches des theoretisch zu berechnenden Heizmaterials und verläuft auch äußerst langsam. Vielfache Beobachtungen und Versuche haben gezeigt, daß diese Erschwerung des Prozesses damit zusammenhängt, daß die an den heißen Wandungen zuerst zur Sublimation gelangenden Salmiakdämpfe nur äußerst schwer den Kristallhaufen durchdringt, und zwar um so schwerer, je länger der Prozeß schon dauert, weil mit fortschreitender Beheizung sich immer mehr Salmiak in dem oberen Teil des Salmiakhaufens kondensiert anstatt bis zur Haube zu gelangen. Infolgedessen muß weit mehr geheizt werden, als es sonst erforderlich wäre. Die nicht selten bei dieser Arbeitsweise stattfindenden Explosionen rühren daher, daß die in dem zusammengesinterten Salmiakhaufen erzeugten Gase sich gewaltsam einen Ausweg verschaffen müssen.The process requires a multiple of that to be calculated theoretically Heating material and is also extremely slow. Multiple observations and experiments have shown that this complication of the process is related to the fact that the The ammonia vapors that sublimate on the hot walls only extremely difficult to penetrate the crystal cluster, and the harder it is, the longer the process already lasts, because as the heating progresses, more and more salmiac is in the condensed upper part of the ammonia pile instead of reaching the hood. Consequently must be heated far more than would otherwise be necessary. Not infrequently at Explosions occurring in this way of working are due to the fact that those in the sintered together The gases produced by heaps of ammonia have to forcibly find a way out.

Entsprechend diesen Beobachtungen hat sich gezeigt, daß sich eine außerordentliche Erleichterung des Vorganges dann ergibt, wenn man in geeigneter `reise dafür sorgt, daß die sich durch die Beheizung entwickelnden Salmiakdämpfe jederzeit leicht entweichen und zur Haube gelangen können, wo sie kondensieren. Dies gelingt, wenn man den Salmiak nicht in Form eines losen Pulvers oder Kristallhaufens in den Apparat einbringt, sondern in Form von durch Pressung erhaltenen Stücken, deren Gestalt und Größe nicht von ausschlaggebender Bedeutung sind. Ebenso ist es, verhältnismäßig unerheblich, ob man die Preßstücke in unregelmäßiger Schüttung einbringt oder irgendwie regelmäßig einordnet. Es zeigt sich bei der Beschickung mit Preßstücken, daß bei erheblicher Ersparnis an Kohlen und verringerter Dauer des Sublimationsproeesses eine erhebliche Vermehrung des Ausbringens an sublimiertem Salmiak zu verzeichnen ist, ferner daß I;splosionen bei dieser Art der Sublimation überhaupt nicht stattfinden. Der nicht sublimierte Rest der Beschickung zeigt sich nach dem Öffnen der Haube nicht gesintert und kann bei der nächsten Beschickung wieder mitverarbeitet werden.According to these observations it has been shown that a Extraordinary facilitation of the process results when one is in a suitable position `Reise ensures that the ammonia vapors developed by the heating can easily escape at any time and reach the hood, where they condense. This works if the ammonia is not in the form of a loose powder or a cluster of crystals introduces into the apparatus, but in the form of pieces obtained by pressing, whose shape and size are not of decisive importance. It is the same relatively unimportant whether the pressed pieces are introduced in irregular bulk or somehow regularly classifies. It can be seen when charging with pressed pieces, that with considerable savings in coal and reduced duration of the sublimation process there was a considerable increase in the application of sublimed salmiac is, furthermore, that explosions do not take place at all with this type of sublimation. The unsublimated remainder of the charge shows up after opening the hood not sintered and can be processed again with the next loading.

Claims (1)

PATEN T-A\ SPRUCH: Verfahren zur Herstellung von sublimiertem Salmiak, dadurch gekennzeichnet, daß das zu sublimierende :Material in Form von Preßstücken verwendet wird.PATEN T-A \ SPRUCH: Process for the production of sublimed salmiac, characterized in that the material to be sublimated is in the form of pressed pieces is used.
DEC33861D 1923-08-07 1923-08-07 Process for the production of sublimed ammonia Expired DE393480C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC33861D DE393480C (en) 1923-08-07 1923-08-07 Process for the production of sublimed ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC33861D DE393480C (en) 1923-08-07 1923-08-07 Process for the production of sublimed ammonia

Publications (1)

Publication Number Publication Date
DE393480C true DE393480C (en) 1924-04-04

Family

ID=7021039

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC33861D Expired DE393480C (en) 1923-08-07 1923-08-07 Process for the production of sublimed ammonia

Country Status (1)

Country Link
DE (1) DE393480C (en)

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