AT112960B - Process for the simultaneous production of phosphoric acid and high-quality generator gases. - Google Patents

Process for the simultaneous production of phosphoric acid and high-quality generator gases.

Info

Publication number
AT112960B
AT112960B AT112960DA AT112960B AT 112960 B AT112960 B AT 112960B AT 112960D A AT112960D A AT 112960DA AT 112960 B AT112960 B AT 112960B
Authority
AT
Austria
Prior art keywords
gases
phosphoric acid
simultaneous production
quality generator
generator gases
Prior art date
Application number
Other languages
German (de)
Inventor
Wladimir Kyber
Original Assignee
Wladimir Kyber
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
Priority claimed from DEB116446D external-priority patent/DE449585C/en
Application filed by Wladimir Kyber filed Critical Wladimir Kyber
Application granted granted Critical
Publication of AT112960B publication Critical patent/AT112960B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00Phosphorus; Compounds thereof
    • C01B25/16Oxyacids of phosphorus; Salts thereof
    • C01B25/18Phosphoric acid
    • C01B25/20Preparation from elemental phosphorus or phosphoric anhydride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Treating Waste Gases (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur gleichzeitigen   Gewinnung   von Phosphorsäure und hochwertigen
Gelleratorgasen. 
 EMI1.1 
 
 EMI1.2 
 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

 steigt die Temperatur des Gasgemisches auf die erwünschte Temperatur von etwa   11500 bis 12000   C. 



  Es resultiert eine vollkommene Verbrennung des Phosphors, ohne dass nennenswerte Mengen von Kohlenoxyd verbrannt werden. Die abziehenden Gase werden nun in geeigneter Weise von der in ihnen enthaltenen Phosphorsäure befreit, während das erhalten gebliebene Generatorgas einem beliebigen Verwendungszweck zugeführt werden kann. 
 EMI2.1 
 Gase, z. B. Verbrennungsgase, Kalkofengase u. dgl. zumischen. Bei der Vermischung des Kohlendioxyds mit dem Phosphor der Abgase bei den erwähnten Temperaturen entsteht quantitativ Phosphorpentoxyd. Die Reaktion geht schon bei 950  C vor sich, verläuft aber erst bei etwa   11000 C quantitativ.   Immerhin bilden sich schon erhebliche Mengen von Phosphorpentoxyd bei der Temperatur von 950  C. Die Reaktionen werden durch folgende Gleichungen veranschaulicht. 
 EMI2.2 
 



   Das für den Hochofenbetrieb erforderliche Kohlendioxyd lässt sich auch durch Verbrennung eines Teiles der Schachtofengase, gesondert von der Gesamtmenge der Gase, gewinnen. Die Gase werden darauf der Gesamtmenge der Hochofengas hinzugefügt, so dass im Rekuperator oder Cowperofen, wohin sie geleitetwerden, auch ohne   Luftzufuhr genügende Mengen   Kohlendioxyd vorhanden sind, um allen Phosphor gemäss vorstehenden Gleichungen zu oxydieren. 



   Beispiel 2 : Man   verfährt wie nach   Beispiel 1, nur dass an Stelle von Luft 7-8 Volumenprozent Kohlendioxyd zugemischt werden, wobei man die notwendige Reaktionswärme durch besonderes Erhitzen der Gasgemische herbeiführen kann. 



   Das gleiche Verfahren kann vorteilhaft auch in einem Generator bzw. generatorartigen Schachtofen durchgeführt werden. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur gleichzeitigen Gewinnung von Phosphorsäure und hochwertigen Generatorgasen durch Behandlung von Phosphoriten mit Silikaten und Kohle in einem Hochofen und Verbrennung der hiebei entweichenden, neben Kohlenoxyd verhältnismässig wenig Phosphor enthaltenden Gase mittels solchen Mengen von Luft oder Sauerstoff, dass nur der Phosphordampf verbrennt, während Kohlenoxyd zurückbleibt, dadurch gekennzeichnet, dass das Gasgemenge in einem hinter dem Hochofen befindlichen Rekuperator oder Cowperofen auf etwa 1000 bis   13000 C.   erhitzt wird.



   <Desc / Clms Page number 1>
 



  Process for the simultaneous extraction of phosphoric acid and high quality
Gellerator gases.
 EMI1.1
 
 EMI1.2
 
 EMI1.3
 

 <Desc / Clms Page number 2>

 the temperature of the gas mixture rises to the desired temperature of about 11500 to 12000 C.



  The result is complete combustion of the phosphorus without any significant amounts of carbon dioxide being burned. The evacuating gases are then freed from the phosphoric acid contained in them in a suitable manner, while the generator gas that has been retained can be used for any purpose.
 EMI2.1
 Gases, e.g. B. combustion gases, lime furnace gases u. like. Mix in. When the carbon dioxide is mixed with the phosphorus in the exhaust gases at the temperatures mentioned, phosphorus pentoxide is quantitatively produced. The reaction takes place at 950 C, but does not proceed quantitatively until around 11000 C. After all, considerable amounts of phosphorus pentoxide are already formed at a temperature of 950 C. The reactions are illustrated by the following equations.
 EMI2.2
 



   The carbon dioxide required for blast furnace operation can also be obtained by burning part of the shaft furnace gases, separately from the total amount of gases. The gases are then added to the total amount of blast furnace gas so that in the recuperator or cowper furnace, wherever they are directed, sufficient amounts of carbon dioxide are present to oxidize all phosphorus according to the above equations, even without a supply of air.



   Example 2: The procedure is as in Example 1, except that 7-8 percent by volume of carbon dioxide is mixed in instead of air, whereby the necessary heat of reaction can be brought about by special heating of the gas mixture.



   The same method can advantageously also be carried out in a generator or generator-like shaft furnace.



   PATENT CLAIMS:
1. Process for the simultaneous production of phosphoric acid and high-quality generator gases by treating phosphorites with silicates and coal in a blast furnace and burning the gases that escape, which contain relatively little phosphorus in addition to carbon oxide, using such amounts of air or oxygen that only the phosphorus vapor burns while Carbon oxide remains, characterized in that the gas mixture is heated to about 1000 to 13000 C. in a recuperator or cowper furnace located behind the blast furnace.

 

Claims (1)

1. Abänderung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass man die Luft teilweise oder zur Gänze durch Kohlendioxyd oder kohlendioxydhältige Gase ersetzt. 1. Modification of the method according to claim 1, characterized in that the air is partially or wholly replaced by carbon dioxide or carbon dioxide-containing gases.
AT112960D 1924-11-07 1925-10-29 Process for the simultaneous production of phosphoric acid and high-quality generator gases. AT112960B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB116446D DE449585C (en) 1924-11-07 1924-11-07 Process for the simultaneous production of phosphoric acid and high quality generator gases by treating phosphorites with silicates and coal
DEK93071D DE475128C (en) 1924-11-07 1925-02-25 Production of phosphoric acid and high-quality generator gases by treating phosphorites with silicates and coal

Publications (1)

Publication Number Publication Date
AT112960B true AT112960B (en) 1929-04-25

Family

ID=29251660

Family Applications (1)

Application Number Title Priority Date Filing Date
AT112960D AT112960B (en) 1924-11-07 1925-10-29 Process for the simultaneous production of phosphoric acid and high-quality generator gases.

Country Status (2)

Country Link
AT (1) AT112960B (en)
DE (1) DE475128C (en)

Also Published As

Publication number Publication date
DE475128C (en) 1929-04-17

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