CH121339A - Process for the production of phosphoric acid. - Google Patents
Process for the production of phosphoric acid.Info
- Publication number
- CH121339A CH121339A CH121339DA CH121339A CH 121339 A CH121339 A CH 121339A CH 121339D A CH121339D A CH 121339DA CH 121339 A CH121339 A CH 121339A
- Authority
- CH
- Switzerland
- Prior art keywords
- phosphoric acid
- production
- combustion chamber
- phosphorus
- combustion
- Prior art date
Links
Landscapes
- Incineration Of Waste (AREA)
Description
Verfahren zur Herstellung von Phosphorsäure. Bei der Herstellung von Phosphorsäure durch Verbrennung von Phosphor oder phos phorhaltigen Gasgemischen mit Luft findet durch die grosse Wärmeentwicklung ein starker Angriff der Ausmauerung statt.
Es wurde nun gefunden, dass man dieses Angriff wirksam vermeiden kann, wenn man die Wandung der Verbrennungskammer mit Phosphorsäure ständig berieselt, wobei gleich zeitig wenigstens eine teilweise Absorption des bei der Verbrennung entstehenden Phos- phorpentoxyds durch die Phosphorsäure lösung stattfindet. Man kann die Berieselung in verschiedener Form ausführen;
zum Bei spiel in der Art, dass man als Verbrennungs kammer ein horizontal liegendes Drehrohr verwendet, in das Phosphorsäurelösung der art eingebracht wird, dass durch die Bewe gung des Rohres die Rohrwandung berieselt wird. Eine andere Ausführungsart besteht darin, dass man die Reaktionsgase, gegebe nenfalls die bei der Verbrennung von Phos- phor sich bildende Flamme, in einen Schacht von unten oder von oben hineinführt, dessen Wände mit der Phosphorsäurelösung berieselt werden.
Process for the production of phosphoric acid. In the production of phosphoric acid by burning phosphorus or gas mixtures containing phosphorus with air, the great amount of heat generated causes a strong attack on the brickwork.
It has now been found that this attack can be effectively avoided if the walls of the combustion chamber are constantly sprinkled with phosphoric acid, at the same time at least partial absorption of the phosphorus pentoxide resulting from the combustion taking place by the phosphoric acid solution. The sprinkling can be carried out in various ways;
For example, in the way that a horizontally lying rotary tube is used as the combustion chamber, into which a phosphoric acid solution is introduced in such a way that the tube wall is sprinkled as the tube moves. Another embodiment consists in feeding the reaction gases, possibly the flame that forms during the combustion of phosphorus, into a shaft from below or from above, the walls of which are sprinkled with the phosphoric acid solution.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE121339X | 1925-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH121339A true CH121339A (en) | 1927-07-01 |
Family
ID=5656878
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH121339D CH121339A (en) | 1925-01-17 | 1925-12-30 | Process for the production of phosphoric acid. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH121339A (en) |
-
1925
- 1925-12-30 CH CH121339D patent/CH121339A/en unknown
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