DE570953C - Process for the preparation of guanidine salts from guanidine ammonium phosphate - Google Patents

Process for the preparation of guanidine salts from guanidine ammonium phosphate

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Publication number
DE570953C
DE570953C DEC46533D DEC0046533D DE570953C DE 570953 C DE570953 C DE 570953C DE C46533 D DEC46533 D DE C46533D DE C0046533 D DEC0046533 D DE C0046533D DE 570953 C DE570953 C DE 570953C
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Prior art keywords
guanidine
ammonium phosphate
phosphate
salts
preparation
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Expired
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DEC46533D
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German (de)
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Dr Karl Koulen
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Chemische Werke Vorm H & E Alb
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Chemische Werke Vorm H & E Alb
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Priority to DEC46533D priority Critical patent/DE570953C/en
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Publication of DE570953C publication Critical patent/DE570953C/en
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Description

Verfahren zur Herstellung von Guanidinsalzen aus Guanidinammoniumphosphat Im Patent 557 622 ist ein Verfahren beschrieben, mit dessen Hilfe es gelingt, Guanidinammoniumphosphat auf einfache und billige Weise herzustellen. Dieses -Guanidinammoniumphosphat"kann- nun ebenfalls nach Patent 557 622 -durch Zusatz von Metallsalzen, -oxy den oder -hydroxyden in Guanidinmetallphosphat übergeführt werden. Das dort beschriebene Verfahren eignet sich aber nicht nur zur Herstellung von Guanidinmetallphosphaten, sondern bei Anwendung geeigneter Metallsalze, -oxyde oder -hydroxyde auch zur Herstellung von beliebigen Guanidinsalzen. Man geht dabei so vor, daß man das Guaniäinainmoniumphosphat, erhalten nach Patent 557 622, mit solchen Metallsalzen, =oxyden oder. -hydroxyden behandelt, welche ein schwer- oder unlösliches Metallammoniumphosphat bilden.Process for the preparation of guanidine salts from guanidine ammonium phosphate The patent 557 622 describes a process with the help of which it is possible to obtain guanidine ammonium phosphate to manufacture in a simple and cheap way. This -Guanidinammonium Phosphat "can- now also according to patent 557 622 -by adding metal salts, -oxy the or hydroxides are converted into guanidine metal phosphate. The one described there Process is not only suitable for the production of guanidine metal phosphates, but also for production when using suitable metal salts, oxides or hydroxides of any guanidine salts. One proceeds in such a way that one uses the guanine monium phosphate, obtained according to patent 557 622, with such metal salts, = oxides or. hydroxides treated, which form a sparingly or insoluble metal ammonium phosphate.

Als Beispiele seien angeführt: r. Die Herstellung von Guanidinphosphat nach folgender Gleichung: 4 (CH5 Na)NH4- H2P04+3Ca (0H)2 - 2 (CH@N3)s - H-3P04 + Ca. (P04)1 -I- 4 (NH4) OH -i- H10 2. Die Herstellung von Guanidinphosphat nach folgender Gleichung: -2 CH5N3 . NH4- H2P04 --f- MgCO3 - (CHF N3)2. H2P04 + MgNH4P04 -j- NH4HC03. In beiden Fällen kann nach Abfiltrieren des Niederschlages von Tricalciumphosphat bzw. Magnesiumammoniumphosphat das entstandene Ammoniak bzw. Ammoniumbicarbonat durch Kochen aus der Lösung entfernt und die nunmehr reine Guanidinphosphatlösung nach Eindampfen zur Kristallisation gebracht werden.Examples are: r. The production of guanidine phosphate according to the following equation: 4 (CH5 Na) NH4- H2P04 + 3Ca (0H) 2 - 2 (CH @ N3) s - H-3P04 + Ca. (P04) 1 -I- 4 (NH4) OH - i- H10 2. The production of guanidine phosphate according to the following equation: -2 CH5N3. NH4- H2P04 --f- MgCO3 - (CHF N3) 2. H2P04 + MgNH4P04 -j- NH4HC03. In both cases, after filtering off the precipitate of tricalcium phosphate or magnesium ammonium phosphate, the ammonia or ammonium bicarbonate formed can be removed from the solution by boiling and the now pure guanidine phosphate solution can be crystallized after evaporation.

3. Zur Herstellung des sonst schwer zugänglichen Guanidincarbonats arbeitet man mit einem Überschuß von Magnesiumcarbonat und erhält nach der Gleichung 2 CH,N3 # NH4- H,P04 -i- 2 MgC03 --_ (CH@N3)2 # H.C03 + 2 MgNH4P04 + H20 + C02 nach Abfiltrieren des gebildeten Magnesiumammoniumphosphats und Entfernen des Kohlendioxyds eine Lösung von Diguanidincarbonat.3. For the production of guanidine carbonate, which is otherwise difficult to access one works with an excess of magnesium carbonate and obtains according to the equation 2 CH, N3 # NH4- H, PO4 -i- 2 MgCO3 --_ (CH @ N3) 2 # H.C03 + 2 MgNH4P04 + H20 + C02 after The magnesium ammonium phosphate formed is filtered off and the carbon dioxide is removed a solution of diguanidine carbonate.

q.. Will man aus Guanidinammoniumphosphat beispielsweise Guanidinsulfat machen, so wird vorteilhaft zuerst mit Magnesiumcarbonat nach der in Beispiel e angeführten Gleichung sekundäres Guanidinphosphat und daraus durch Zusatz von Magnesiumsulfat die Phosphorsäure gleichzeitig mit dem noch vorhandenen Ammoniak entfernt, ohne daß das in der ersten Stufe entstandene Magnesiumammoniumphosphat vorher abfiltriert werden muB. Die zweite Stufe verläuft dann nach folgender Gleichung: (CH5Ns)2 # H3P04 -+- NH4HC03 +_M9S04 - (CH@N3)2 - H2S04 -+- l@TgNH4P04+ H20 -+-C02 Frisch gefälltes Silberoxyd wird mit der stöchiometrischen Menge Guanidinammoniumphosphat in Gegenwart geringer Mengen Wasser verrieben und dann bei Wasserbadtemperatur zur Trockne gebracht. Nach dem Wiederauflösen in Wasser wird das entstandene Silberorthophosphat abfiltriert und das Filtrat zur Kristallisation gebracht. Nach der Gleichung 3Ag20+4CHSN3-NH4-H@P0-2AgsP04+2 (CH5N3)2-H3P04+4NH3+H20 erhält man sekundäres Guanidinphosphat.q .. If you want to make guanidine ammonium phosphate, for example, guanidine sulfate make, it is advantageous first with magnesium carbonate according to the example e cited equation secondary guanidine phosphate and from it through the addition of magnesium sulfate the phosphoric acid removed simultaneously with the remaining ammonia without that the magnesium ammonium phosphate formed in the first stage is filtered off beforehand must be. The second stage then runs according to the following equation: (CH5Ns) 2 # H3P04 - + - NH4HC03 + _M9S04 - (CH @ N3) 2 - H2S04 - + - l @ TgNH4P04 + H20 - + - C02 Freshly precipitated Silver oxide is present with the stoichiometric amount of guanidine ammonium phosphate rubbed in small amounts of water and then brought to dryness at water bath temperature. After redissolving in water, the resulting silver orthophosphate is filtered off and caused the filtrate to crystallize. According to the equation 3Ag20 + 4CHSN3-NH4-H @ P0-2AgsP04 + 2 (CH5N3) 2-H3P04 + 4NH3 + H20, secondary guanidine phosphate is obtained.

6. Guanidinammoniumphosphat wird' nach der summarischen Gleichung 4 CH5N3 - NH4 - H2P04 -f- 3 Cu (0H)2 2 (CH" N3)2 H.P04 -I- Cu3 (P04).1 -I- 4 NH3 -l- 6 H20 in wässeriger Lösung mit Kupferhydroxyd behandelt. Dabei geht zunächst das Kupferhydroxyd teilweise in Lösung und fällt beim Verdampfen des Ammoniaks als Kupferphosphat wieder aus. Dieses wird abfiltriert und darauf die Lösung von sekundärem Guanidinphosphat zur Kristallisation gebracht. Bei dieser Arbeitsweise ist es vorteilhaft, das aus einem Ansatz abgetriebene Ammoniak dem nächsten Ansatz zwecks möglichst vollständiger Lösung des Kupferhydroxyds zuzusetzen, da hierdurch die Umsetzung zwischen Kupferhydroxyd und Guazüdinammoniumplhosphat wesentlich beschleunigt wird.6. Guanidine ammonium phosphate becomes' according to the summary equation 4 CH5N3 - NH4 - H2P04 -f- 3 Cu (0H) 2 2 (CH "N3) 2 H.P04 -I- Cu3 (P04) .1 -I- 4 NH3 -l- 6 H20 treated in aqueous solution with copper hydroxide. This goes first the copper hydroxide partially in solution and falls as the ammonia evaporates Copper phosphate again. This is filtered off and then the solution of secondary Guanidine phosphate brought to crystallization. In this way of working, it is advantageous to the ammonia driven off from one approach to the next approach for the purpose of as possible to add complete solution of the copper hydroxide, as this results in the implementation between copper hydroxide and guazüdinammoniumplhosphat is significantly accelerated.

Claims (1)

PATRNTANSPRUCH: Verfahren zur Herstellung von Guanidinsalzen aus Guanidinammoniumphosphat nach Patent 557 622, dadurch gekennzeichnet, daB das Guanidinammor niumphosphat mit solchen Metallsalzen, -oxyden oder -hydroxyden, welche ein schwer- oder unlösliches Metallphosphat oder ein schwer- oder unlösliches Metallammoniumphosphat bilden, umgesetzt wird.PATENT CLAIM: Process for the production of guanidine salts from guanidine ammonium phosphate according to patent 557 622, characterized in that the guanidine ammonium phosphate with those metal salts, oxides or hydroxides which are poorly soluble or insoluble Form metal phosphate or a sparingly or insoluble metal ammonium phosphate, is implemented.
DEC46533D 1932-06-11 1932-06-11 Process for the preparation of guanidine salts from guanidine ammonium phosphate Expired DE570953C (en)

Priority Applications (1)

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DEC46533D DE570953C (en) 1932-06-11 1932-06-11 Process for the preparation of guanidine salts from guanidine ammonium phosphate

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Application Number Priority Date Filing Date Title
DEC46533D DE570953C (en) 1932-06-11 1932-06-11 Process for the preparation of guanidine salts from guanidine ammonium phosphate

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DE570953C true DE570953C (en) 1933-02-24

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