DE753467C - Production of concentrated solutions of zinc phosphate ammonia - Google Patents

Production of concentrated solutions of zinc phosphate ammonia

Info

Publication number
DE753467C
DE753467C DEC57608D DEC0057608D DE753467C DE 753467 C DE753467 C DE 753467C DE C57608 D DEC57608 D DE C57608D DE C0057608 D DEC0057608 D DE C0057608D DE 753467 C DE753467 C DE 753467C
Authority
DE
Germany
Prior art keywords
ammonia
zinc
solutions
production
zinc phosphate
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
DEC57608D
Other languages
German (de)
Inventor
Kurt Dr Phil Albert
Gerhard Dr Ruzicka
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 DEC57608D priority Critical patent/DE753467C/en
Application granted granted Critical
Publication of DE753467C publication Critical patent/DE753467C/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
    • C01B25/26—Phosphates
    • C01B25/45—Phosphates containing plural metal, or metal and ammonium
    • C01B25/451—Phosphates containing plural metal, or metal and ammonium containing metal and ammonium

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

Herstellung konzentrierter Lösungen von Zinkphosphatammoniakaten Es ist bekannt, däB Zinkoxyd sich in Ammoniak nur sehr wenig löst daB aber durch Zusatz von Ammoniumsalzen ,der Phosphorsäure die Löslichkeit begünstigt wird. Eine praktische Bedeutung hat dies bisher jedoch nicht bewirkt, da man auf diese Weise konzentrierte Lösungen nicht erhält.Preparation of concentrated solutions of zinc phosphate ammonia es it is known that zinc oxide dissolves only very little in ammonia, but that it does so when added of ammonium salts, the solubility of phosphoric acid is favored. A practical one So far, however, this has not made any difference, as this was the way to concentrate Solutions not received.

Es wurde .gefunden, daß konzentrierte, technisch verwendbare Lösungen aus Zinkoxyd, Zinkhydroxyd und/oder Zinkcarbonat erhalten werden, wenn: diese Stoffe in Gegenwart von Ammoniumphosphaten oder von Phosphorsäure mit überschüssigem wäßrigem Ammoniak sowie in solchen Mengen zusammengebracht werden, daß das Verhältnis von Zinkoxyd zu Phosphorpentoxyd sich dem Verhältnis 3 : z nähert oder ihm entspricht. Mit der Annäherung an dieses Verhältnis werden die Löslichkeitsverhältnisse am günstigsten. Anstatt Ammoniumphosphat und einer der genannten basischen Zinkverhin.-dungen kann man auch unmittelbar Zinkphosphate in Ammoniak lösen.It was found that concentrated, industrially useful solutions from zinc oxide, zinc hydroxide and / or zinc carbonate, if: these substances in the presence of ammonium phosphates or of phosphoric acid with excess aqueous Ammonia as well as are brought together in such amounts that the ratio of Zinc oxide to phosphorus pentoxide approaches or corresponds to the ratio 3: z. As this ratio is approached, the solubility ratios become the most favorable. Instead of ammonium phosphate and one of the above-mentioned basic zinc preventions can zinc phosphates can also be dissolved directly in ammonia.

Man erhält in allen Fällen klare Komplexsalzlösungen von Zinkphosphatammoniakaten, die der Formel, Zn3 (N H3) x (P O4) 2 entsprechen und in denen x wahrscheinlich q. oder 6. beträgt. Zum Beispiel ergeben folgende Mischungen konzentrierte Zinkphosphatammoniakatlösungen von etwa 40< 'Be: 35,5 Gewichtsteile Zinkoxyd, 3E,5 Gewichtsteile Diammoniumphosphat (N H4) 2 H P O4 in 90.o Gewichtsteilen Ammoniak z50/0;,, oder 35,5 Gewichtsteile Zinkoxyd, 33,4 Gewichtsteile Monoammoniumphosphat (N H4) H_ P 04 in go,o Gewichtsteilen Ammoniak 250!0;g. oder 35,5 Gewichtsteile Zinkoxyd, 42,0 Gewichtsteile Phosphorsäure von 4,9,a° Be in 90,o Gewichtsteilen Ammoniak 25%ig.Clear complex salt solutions of zinc phosphate ammonia are obtained in all cases, which correspond to the formula, Zn3 (N H3) x (P O4) 2 and in which x is likely q. or 6. is. For example, the following result Mixtures concentrated Zinc phosphate ammonia solutions of about 40 Be: 35.5 parts by weight of zinc oxide, 3E, 5 parts by weight of diammonium phosphate (N H4) 2 H P O4 in 90.o parts by weight of ammonia z50 / 0; ,, or 35.5 parts by weight of zinc oxide, 33.4 parts by weight of monoammonium phosphate (N H4) H_ P 04 in go, o parts by weight of ammonia 250! 0; g. or 35.5 parts by weight Zinc oxide, 42.0 parts by weight of phosphoric acid of 4.9, a ° Be in 90, o parts by weight Ammonia 25%.

Es lassen sich auch Lösungen bis fast 5o° Be herstellen.Solutions up to almost 50 ° Be can also be produced.

Die Herstellung derartiger Lösungen erfolgt z. B. in der Weise, daß die Mischung von Diammoni.uinpliospliat und Zinkoxyd unter Rühren in das wäßrige Ammoniak eingetragen wird, -wobei unter leichter Selbsterwärmung Lösung eintritt, oder daß zunächst Monoainmoniumphosphat oder Phosphorsäure zum Ammonak und nach erfolgter Reaktion das Zinkoxyd bis zur Lösung unter Rühren hinzugefügt wird.Such solutions are produced, for. B. in such a way that the mixture of Diammoni.uinpliospliat and zinc oxide with stirring in the aqueous Ammonia is entered, whereby solution occurs with slight self-heating, or that first monoainmonium phosphate or phosphoric acid to ammonac and after Once the reaction has taken place, the zinc oxide is added with stirring until it dissolves.

Läßt man die erhaltenen Lösungen von Zinlzpliospliatammanial;aten eintrocknen, soIf the solutions obtained are left of Zinlzpliospliatammanial; aten dry up, like that

Claims (1)

PATENTa1SPRUCI3: Verfahren -rur Herstellung konzentrierter Lösungen von Zinkphosphatammoniakaten durch Behandlung von Zinkoxyd, Zinkhydroxy d, und/oder Zinkcarbonat in Gegenwart von Ammoniumphosphaten bzw. Phosphorsäure und Ammoniak mit wäßriggein Ammoniak oder durch Behandlung von Zinkphosphat mit wäßrigem Ammoniak, gekennzeichnet durch die 'Verwendung von iiberscliüssigein Ammoniak und solchen Mengen der Ausgangsstoffe, daß das Verhältnis Zinkoxyd: Phosphorpentoxvd annähernd oder gleich 3 : 1 betritt. -kristallisieren sie überraschenderweise nicht wie andere Lösungen von Zinkammoniakaten aus, sondern trocknen zu glasklaren, harten, wasseru:nlösl-ichen: Massen ein. Diese können für verschiedene technische Zwecke, wie Verkittungen, Verklehungen u. dgl., Verwendung finden.PATENTA1SPRUCI3: Process for the production of concentrated solutions of zinc phosphate ammonia by treating zinc oxide, zinc hydroxide and / or zinc carbonate in the presence of ammonium phosphates or phosphoric acid and ammonia with aqueous ammonia or by treating zinc phosphate with aqueous ammonia, characterized by the use of excess liquid Ammonia and such quantities of the starting materials that the zinc oxide: phosphorus pentoxide ratio is approximately or equal to 3: 1 . - Surprisingly, they do not crystallize out like other solutions of zinc ammonia, but dry to crystal-clear, hard, water-soluble masses. These can be used for various technical purposes, such as cementing, cladding and the like.
DEC57608D 1942-09-12 1942-09-12 Production of concentrated solutions of zinc phosphate ammonia Expired DE753467C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC57608D DE753467C (en) 1942-09-12 1942-09-12 Production of concentrated solutions of zinc phosphate ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC57608D DE753467C (en) 1942-09-12 1942-09-12 Production of concentrated solutions of zinc phosphate ammonia

Publications (1)

Publication Number Publication Date
DE753467C true DE753467C (en) 1953-02-02

Family

ID=7028446

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC57608D Expired DE753467C (en) 1942-09-12 1942-09-12 Production of concentrated solutions of zinc phosphate ammonia

Country Status (1)

Country Link
DE (1) DE753467C (en)

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