DE434922C - Production of phosphoric acid from humid generator gases containing phosphorus - Google Patents

Production of phosphoric acid from humid generator gases containing phosphorus

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Publication number
DE434922C
DE434922C DEK97197D DEK0097197D DE434922C DE 434922 C DE434922 C DE 434922C DE K97197 D DEK97197 D DE K97197D DE K0097197 D DEK0097197 D DE K0097197D DE 434922 C DE434922 C DE 434922C
Authority
DE
Germany
Prior art keywords
phosphoric acid
phosphorous acid
production
gases containing
humid
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
DEK97197D
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.)
WLADIMIR KYBER DIPL ING
Original Assignee
WLADIMIR KYBER DIPL ING
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 WLADIMIR KYBER DIPL ING filed Critical WLADIMIR KYBER DIPL ING
Priority to DEK97197D priority Critical patent/DE434922C/en
Application granted granted Critical
Publication of DE434922C publication Critical patent/DE434922C/en
Expired legal-status Critical Current

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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
    • C01B25/185—Preparation neither from elemental phosphorus or phosphoric anhydride nor by reacting phosphate-containing material with an acid, e.g. by reacting phosphate-containing material with an ion-exchange resin or an acid salt used alone

Description

Gewinnung von Phosphorsäure aus feuchten phosphorhaltigen Generatorgasen. Die bei der Reduktion von Phosphaten gewonnenen phosphorhaltigen Generatorgase bilden bei geeigneter Temperatur, wenn eine an sich übliche feuchte Charge benutzt wird, quantitativ PH, Falls diese, Gase bei niederen Temperaturen mit einer berechneten Menge Luft verbrannt «erden, so daß eine Zersetzung von Phosphorwasserstoff PH, noch nicht eintritt, also unterhalb Zersetzungstemperaturen von etwa aooo°, entsteht fast theoretisch nur phosphorige Säure. Praktisch läßt sich diese Zersetzung schon von ioo° an quantitativ durchführen, wobei es auf die Geschwindigkeit der Gasdurchführung und der Verbrennung des geringen Prozentgehalts an PH, ankommt.Production of phosphoric acid from humid generator gases containing phosphorus. The phosphorus-containing generator gases obtained from the reduction of phosphates are formed at a suitable temperature, if a normal moist batch is used, quantitative PH, if this, gases at low temperatures with a calculated Amount of air burnt, so that a decomposition of phosphine PH, does not yet occur, i.e. below decomposition temperatures of about aooo °, arises almost theoretically only phosphorous acid. This decomposition can be done in practice carry out quantitative from 100 °, whereby it depends on the speed of gas passage and the combustion of the low percentage of PH, arrives.

Diese phosphorige Säure hat vor Phosphorsäure den Vorzug, daß sie sich bei der Unterschreitung des Taupunktes wie gewöhnliche Dämpfe kondensiert.This phosphorous acid has the advantage over phosphoric acid that it condenses like normal vapors when the dew point is not reached.

Der Gegenstand der Erfindung bezieht sich nun auf diese Verbrennung phosphorwasserstoffhaltiger Generatorgase zu phosphoriger Säure durch Zumischung von berechneten Mengen Luft bei geeigneten Temperaturen und Umwandlung dieser phosphorigen Säure zu Phosphorsäure durch wiederholtes Erhitzen der jedesmalig sich bildenden phosphorigen Säure unter Zumischung berechneter Luftmengen, um den gebildeten PH, zu phosphoriger Säure zu oxydieren, worauf jedesmalig der Prozeß der Zersetzung von neuem durchgeführt wird.The subject of the invention now relates to this combustion Generator gases containing hydrogen phosphide are mixed with phosphorous acid of calculated amounts of air at suitable temperatures and conversion of these phosphorous Acid to phosphoric acid by repeated heating of the each time formed phosphorous acid with the addition of calculated amounts of air to the formed PH, to oxidize to phosphorous acid, whereupon the process of decomposition every time is carried out again.

Die phosphorige Säure zersetzt sich beim Erhitzen auf 130 bis q.00° quantitativ nach der Formel q. H@P03 = H,P0, -[- PH.. Und dieses PH, wird von neuem wie das Ausgangsgas behandelt, bis zuletzt alles in H"P0-, verwandelt ist.The phosphorous acid decomposes quantitatively on heating to 130 to q.00 ° according to the formula q. H @ P03 = H, P0, - [- PH .. And this PH is treated again like the starting gas until everything is finally transformed into H "P0-.

Claims (3)

PATENT-ANSpRT'CHE: i. Verbrennung phosphorwasserstoffhaltiger Generatorgase oder von Phosphorwasserstoff zu phosphoriger Säure, dadurch gekennzeichnet, daß die berechnete Menge Sauerstoff oder Luft diesen Gasen bei Temperaturen von etwa ioo bis iooo° zugeführt wird und die gebildete phosphorige Säure nach der Kondensation durch Erhitzung in Phosphorsäure und Phosphorwasserstoff umgesetzt wird bei Temperaturen um etwa ¢0o°. PATENT CLAIMS: i. Combustion of generator gases containing hydrogen phosphide or from hydrogen phosphide to phosphorous acid, characterized in that the calculated amount of oxygen or air these gases at temperatures of about 100 to 100 ° is supplied and the phosphorous acid formed after the condensation by heating it is converted into phosphoric acid and hydrogen phosphide at temperatures by about ¢ 0o °. 2. Verfahren zur Gewinnung von Phosphorsäure nach Anspruch i, dadurch gekennzeichnet, daß die dort bezeichnete Zersetzung der phosphorigen Säure so häufig wiederholt wird, daß durchweg Phosphorsäure entsteht, wobei der Phosphorwasserstoff immer wieder von nettem verbrannt wird. 2. A method for the production of phosphoric acid according to claim i, characterized characterized that the decomposition of phosphorous acid referred to there so often it is repeated that phosphoric acid is formed throughout, with hydrogen phosphide is always burned by nice things. 3. Verfahren nach Anspruch i und z, dadurch gekennzeichnet, daß zur jedesmaligen Durchführung des Verfahrens ein gesonderter Kühler und Kondensator für die phosphorige Säure und ein Gefäß zum Umwandeln derselben unter Erhitzung nach Anspruch i und 2 verwandt wird.3. The method according to claim i and z, characterized characterized in that each time the procedure is carried out a separate Cooler and condenser for the phosphorous acid and a vessel for converting it is used under heating according to claims i and 2.
DEK97197D 1926-01-29 1926-01-29 Production of phosphoric acid from humid generator gases containing phosphorus Expired DE434922C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK97197D DE434922C (en) 1926-01-29 1926-01-29 Production of phosphoric acid from humid generator gases containing phosphorus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK97197D DE434922C (en) 1926-01-29 1926-01-29 Production of phosphoric acid from humid generator gases containing phosphorus

Publications (1)

Publication Number Publication Date
DE434922C true DE434922C (en) 1926-10-05

Family

ID=7238592

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK97197D Expired DE434922C (en) 1926-01-29 1926-01-29 Production of phosphoric acid from humid generator gases containing phosphorus

Country Status (1)

Country Link
DE (1) DE434922C (en)

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