DE408925C - Process for the production of phosphoric acid - Google Patents

Process for the production of phosphoric acid

Info

Publication number
DE408925C
DE408925C DEC33132D DEC0033132D DE408925C DE 408925 C DE408925 C DE 408925C DE C33132 D DEC33132 D DE C33132D DE C0033132 D DEC0033132 D DE C0033132D DE 408925 C DE408925 C DE 408925C
Authority
DE
Germany
Prior art keywords
phosphoric acid
production
phosphorus
air
carbon oxide
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
DEC33132D
Other languages
German (de)
Inventor
Dr Gustav Pistor
Dr Robert Suchy
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.)
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
Original Assignee
GRIESHEIM ELEKTRON CHEM FAB
Chemische Fabrik Griesheim Elektron
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 GRIESHEIM ELEKTRON CHEM FAB, Chemische Fabrik Griesheim Elektron filed Critical GRIESHEIM ELEKTRON CHEM FAB
Priority to DEC33132D priority Critical patent/DE408925C/en
Application granted granted Critical
Publication of DE408925C publication Critical patent/DE408925C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/20—Preparation from elemental phosphorus or phosphoric anhydride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Description

Verfahren zur Herstellung von Phosphorsäure. Es ist bekannt, durch Verbrennung der aus einem Phosphorofen bekannter Art entweichenden Gase Phosphorpentoxyd herzustellen und gegebenenfalls dieses mit Wasser in Phosphorsäure überzuführen. Hierbei wurde bisher so verfahren, daß man die Gase mit einem Luftüberschuß behandelte, so daß gleichzeitig mit der Phosphorverbrennung das bei der Reduktion der Phosphate im elektri; schen Ofen gebildete Kohlenoxyd zu Kohlensäure verbrannt wurde.Process for the production of phosphoric acid. It is known by Combustion of the gases phosphorus pentoxide escaping from a known type of phosphorus furnace produce and, if necessary, convert this with water into phosphoric acid. The procedure so far has been that the gases are treated with an excess of air, so that at the same time as the phosphorus is burned, the phosphates are reduced in the electric; Carbon oxide formed in a furnace was burned to carbonic acid.

Es wurde nun die Beobachtung gemacht, daß man durch Anwendung eines Luftunterschusses die Verbrennung so leiten kann, daß nur Phosphorpentoxyd entsteht und das Kohlenoxyd unangegriffen bleibt. Daraus erg,-ben sich folgende wesentlichen Vorteile gegenüber dem bisherigen Verfahren: i. Das Kohlenoxyd kann als solches ye-Wonnen und zu anderen Zwecken verwendet werden.It has now been observed that by using a Air deficit can direct the combustion in such a way that only phosphorus pentoxide is formed and the carbon monoxide remains unaffected. The following essential ones resulted from this Advantages over the previous method: i. The carbon dioxide can be used as such ye-delights and can be used for other purposes.

2. Der Betrag an inerten Gasen ist wesentlich, d. h. etwa auf die Hälfte, vermindert, wodurch die Verdichtung des Phosphorpentoxyds erleichtert und mit Hilfe von kleineren Apparaten ausführbar wird.2. The amount of inert gases is essential; H. about on the Half, reduced, thereby facilitating the compression of the phosphorus pentoxide and becomes feasible with the help of smaller apparatus.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung von Phosphorsäure durch Oxydation der in dem elektrischen Ofen aus Phosphorit, -Sand und Kohle entstehenden Phosphordämpfe mittels Luft, dadurch gekennzeichnet, daß man hierbei nur so viel Luft verwendet" daß der Phosphordampf verbrennt, das vorhandene Kohlenoxyd aber unverändert bleibt. PATENT CLAIM A process for the production of phosphoric acid by means of air oxidation of the phosphorus vapors produced in the electric furnace from phosphorite, sand and coal, characterized in that only so much air is used "that the phosphorus vapor burns, but the carbon oxide present remains unchanged.
DEC33132D 1923-02-01 1923-02-01 Process for the production of phosphoric acid Expired DE408925C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC33132D DE408925C (en) 1923-02-01 1923-02-01 Process for the production of phosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC33132D DE408925C (en) 1923-02-01 1923-02-01 Process for the production of phosphoric acid

Publications (1)

Publication Number Publication Date
DE408925C true DE408925C (en) 1925-01-28

Family

ID=7020668

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC33132D Expired DE408925C (en) 1923-02-01 1923-02-01 Process for the production of phosphoric acid

Country Status (1)

Country Link
DE (1) DE408925C (en)

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