DE757926C - Production of polymeric, water-insoluble ammonium metaphosphate - Google Patents

Production of polymeric, water-insoluble ammonium metaphosphate

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Publication number
DE757926C
DE757926C DEC57974D DEC0057974D DE757926C DE 757926 C DE757926 C DE 757926C DE C57974 D DEC57974 D DE C57974D DE C0057974 D DEC0057974 D DE C0057974D DE 757926 C DE757926 C DE 757926C
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DE
Germany
Prior art keywords
polymeric
water
ammonium
production
insoluble
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
DEC57974D
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German (de)
Inventor
Alfred Dr Kokoschinski
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.)
Hoechst AG Werk Kalle Albert
Original Assignee
Chemische Werke Albert
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 Chemische Werke Albert filed Critical Chemische Werke Albert
Priority to DEC57974D priority Critical patent/DE757926C/en
Application granted granted Critical
Publication of DE757926C publication Critical patent/DE757926C/en
Expired legal-status Critical Current

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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
    • C01B25/26Phosphates
    • C01B25/28Ammonium phosphates
    • 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
    • C01B25/26Phosphates
    • C01B25/38Condensed phosphates
    • C01B25/40Polyphosphates
    • C01B25/405Polyphosphates of ammonium

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Description

Herstellung von polymerem, wasserunlöslichem Ammomummetaphosphat Es ist bekannt, polymere, wasserunlösliche Ammoniummetaphosphate durch Einwirkung von gasförmigem Ammoniak auf Gemische von Phosphorpentoxyd und Ammoniumorthophosphaten bei den erforderlichen Temperaturen zu gewinnen. Dieses. Verfahren setzt das. Vorhandensein von trockenen Ammoniumorthophosphaten voraus, deren Herstellung jedoch mit Schwierigkeiten verknüpft und nicht immer leicht zu erreichen ist.Manufacture of polymeric, water-insoluble ammonium metaphosphate Es is known, polymeric, water-insoluble ammonium metaphosphates by the action of gaseous ammonia to mixtures of phosphorus pentoxide and ammonium orthophosphates to win at the required temperatures. This. Procedure sets that. Presence of dry ammonium orthophosphates, but their production with difficulties linked and not always easy to reach.

Es wurde gefunden, daß auch Ammoniumsalze solcher Sauerstoffsäuren, die bei normaler oder auch bei höherer Temperatur flüchtige Anhydride ergeben, mit entsprechenden Mengen Phosphorpentoxyd behandelt, unlösliche Ammoniummetaphosphate ergeben. Als Beispiel für die zugrunde liegenden Reaktionen seien folgende Umsetzungsgleichungen angeführt (NH4)2S03 -h P205 = $ N H4 P 03 + S02 (N H4) 2 C 03 +p20,5=2 N H4 P O3 -I- C02 Man braucht daher nicht von. wasserfreien Ammoniumorthophosphaten auszugehen, sondern kann ein beliebiges Ammoniumsalz der genannten Art verwenden. Die Behandlung der Mischung solcher Ammo@niumsalze mit Phosphorpentoxyd kann auch in Gegenwart von trockenem Ammoniak und/oder unter Zuführung von Wärme erfolgen.It has been found that ammonium salts of such oxygen acids, which result in volatile anhydrides at normal or even at higher temperatures, with treated with appropriate amounts of phosphorus pentoxide, insoluble ammonium metaphosphates result. The following conversion equations are an example of the underlying reactions listed (NH4) 2S03 -h P205 = $ N H4 P 03 + S02 (N H4) 2 C 03 + p20.5 = 2 N H4 P O3 -I- C02 You therefore do not need from. starting from anhydrous ammonium orthophosphates, but can use any ammonium salt of the type mentioned. The treatment the Mixing such ammonium salts with phosphorus pentoxide can also be in the presence of dry ammonia and / or with the addition of heat.

Beispiele i. iooo Gewichtsteile Ammoniumcarbonat und i4oo Gewichtsteile Phosphorpentoxyd werden in einem geschlossenen: Drehofen 2 Stunden lang gemischt unter gleichzeitigem Einleiten von Ammoniak. Zur Beschleunigung der Reaktion wird das Rohr leicht erwärmt. Man kann im Verlauf der Reaktion die entstandene Kohlensäure ablassen, muß jedoch nachher wieder Ammoniak zur Beendigung der Reaktion in den Drehofen einleiten. Es -,werden igoo Gewichtsteile in Wasser unlösliches, polymeres Ammo.niummetaphosphat erhalten.Examples i. 100 parts by weight of ammonium carbonate and 400 parts by weight Phosphorus pentoxide are mixed in a closed rotary kiln for 2 hours with simultaneous introduction of ammonia. To speed up the reaction will the tube warmed up slightly. In the course of the reaction, you can see the carbonic acid produced drain, but must afterwards again ammonia to terminate the reaction in the Initiate rotary kiln. It becomes polymeric, igoo parts by weight, insoluble in water Obtain ammonium metaphosphate.

z. Ein Gemenge von 95o Gewichtsteilen Ammoniumcarbonat und i4oo Gewichtsteilen Phosphorpentoxyd wird allmählich unter fortwährendem Rühren auf 50 bis 6o° erwärmt. Man erhält 170o Gewichtsteile polymeres, wasserunlösliches Ammoniummetaphosphat.z. A mixture of 95o parts by weight of ammonium carbonate and 100 parts by weight of phosphorus pentoxide is gradually heated to 50 ° to 60 ° with constant stirring. 170o parts by weight of polymeric, water-insoluble ammonium metaphosphate are obtained.

3. Ein Gemenge von g.31 Gewichtsteilen Ammoniumsulfat und iooo Gewichtsteilen Phosphorpentoxyd wird in einem Drehofen in einer Ammoniakatmosphäre allmählich bis 15o° erhitzt. Zeitweise werden die entwickelten Abgase wie im Beispiel abgelassen und frisch Ammoniak eingeleitet. Nach beendeter Reaktion erhält man 13oo Gewichtsteile polymeres, wasserunlösliches Ammoniummetaphosphat.3. A mixture of 31 parts by weight of ammonium sulfate and 100 parts by weight Phosphorus pentoxide is gradually raised in a rotary kiln in an ammonia atmosphere Heated to 15o °. At times, the exhaust gases developed are released as in the example and freshly introduced ammonia. When the reaction has ended, 1,300 parts by weight are obtained polymeric, water-insoluble ammonium metaphosphate.

,4. Gleiche Gewichtsteile von Ammoniumoxalat und Phosphorpentoxyd werden innig vermischt und in einem Drehrohr oder in einer anderen geeigneten Vorrichtung bis zum Beginn der Umsetzung leicht angewärmt. Unter lebhafter Gasentwicklung tritt Reaktion ein, nach deren Aufhören kurze Zeit auf i5o° erwärmt wird. Es hinterbleibt ein weißer Rückstand von besonders reinem, polymerem, wasserunlöslichem Ammoniummetaphosphat, das in guter Ausbeute erhalten wird., 4. Equal parts by weight of ammonium oxalate and phosphorus pentoxide are intimately mixed and placed in a rotary kiln or other suitable device Slightly warmed up until implementation begins. With vigorous evolution of gas occurs Reaction, after which it is warmed up to 150 ° for a short time. It remains behind a white residue of particularly pure, polymeric, water-insoluble ammonium metaphosphate, which is obtained in good yield.

5. Entsprechend den Angaben des Beispiels 4 werden gleiche Gewichtsteile von Ammoniumoxalat und Phosphorpentoxyd zur Reaktion gebracht. Nach Beendigung der Gasentwicklung wird unter leichtem Erwärmen trockenes Ammoniak eingeleitet. Der so erhaltene, teilweise gesinterte weiße Rücktand besteht aus polymerem, wasserunlöslichem Ammoniummetaphosphat, das in guter Ausbeute erhalten wird.5. According to the information in Example 4 are equal parts by weight brought to reaction by ammonium oxalate and phosphorus pentoxide. After the Gas evolution is initiated with dry ammonia with slight warming. Of the The partially sintered white residue obtained in this way consists of polymeric, water-insoluble Ammonium metaphosphate, which is obtained in good yield.

Claims (2)

PATE \TANSPRLCHR: i. Verfahren zur Herstellung von polymerem, wasserunlöslichem Ammoniummetaphosphat, dadurch gekennzeichnet, daß Ammoniumsalze solcher Sauerstoffsäuren, die bei Zimmer- oder höheren Temperaturen flüchtige Anhydride abspalten, mit Phophorpentoxy d in den entsprechenden Mengenverhältnissen umgesetzt werden. PAT E \ TANSPRLCHR: i. Process for the preparation of polymeric, water-insoluble ammonium metaphosphate, characterized in that ammonium salts of those oxygen acids which split off volatile anhydrides at room or higher temperatures are reacted with phosphorus pentoxy d in the appropriate proportions. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Behandlung in Gegenwart von Ammoniak und/oder unter Zuführung von Wärme erfolgt.2. The method according to claim i, characterized in that the treatment takes place in the presence of ammonia and / or with the addition of heat.
DEC57974D 1943-01-22 1943-01-22 Production of polymeric, water-insoluble ammonium metaphosphate Expired DE757926C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC57974D DE757926C (en) 1943-01-22 1943-01-22 Production of polymeric, water-insoluble ammonium metaphosphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC57974D DE757926C (en) 1943-01-22 1943-01-22 Production of polymeric, water-insoluble ammonium metaphosphate

Publications (1)

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DE757926C true DE757926C (en) 1953-03-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024069B (en) * 1955-12-24 1958-02-13 Henkel & Cie Gmbh Process for the preparation of water-soluble nitrogen-phosphoric acid compounds
DE971451C (en) * 1943-11-25 1959-01-29 Albert Ag Chem Werke Process for the production of polymeric, water-insoluble ammonium metaphosphate
DE1567692B1 (en) * 1964-12-22 1971-02-18 Monsanto Co PROCESS FOR THE PRODUCTION OF PRACTICALLY WATER-INSOLUBLE CRYSTALLINE AMMONIUM POLYPHOSPHATES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE971451C (en) * 1943-11-25 1959-01-29 Albert Ag Chem Werke Process for the production of polymeric, water-insoluble ammonium metaphosphate
DE1024069B (en) * 1955-12-24 1958-02-13 Henkel & Cie Gmbh Process for the preparation of water-soluble nitrogen-phosphoric acid compounds
DE1567692B1 (en) * 1964-12-22 1971-02-18 Monsanto Co PROCESS FOR THE PRODUCTION OF PRACTICALLY WATER-INSOLUBLE CRYSTALLINE AMMONIUM POLYPHOSPHATES

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