DE1052376B - Process for the production of tertiary aluminum phosphate - Google Patents

Process for the production of tertiary aluminum phosphate

Info

Publication number
DE1052376B
DE1052376B DEC14810A DEC0014810A DE1052376B DE 1052376 B DE1052376 B DE 1052376B DE C14810 A DEC14810 A DE C14810A DE C0014810 A DEC0014810 A DE C0014810A DE 1052376 B DE1052376 B DE 1052376B
Authority
DE
Germany
Prior art keywords
production
aluminum
aluminum phosphate
phosphate
tertiary
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.)
Pending
Application number
DEC14810A
Other languages
German (de)
Inventor
Dr Hans Huber
Dr Helmut Keller
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 DEC14810A priority Critical patent/DE1052376B/en
Publication of DE1052376B publication Critical patent/DE1052376B/en
Pending 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
    • C01B25/36—Aluminium phosphates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Materials For Medical Uses (AREA)

Description

Verfahren zur Herstellung von tertiärem Aluminiumphosphat Im Patent 1036 230 wird ein Verfahren zur Darstellung von tertiärem Aluminiumphosphat beschrieben, das dadurch gekennzeichnet ist, daß saure Aufschlußlösungen von Ton oder tonerdehaltigen Materialien oder aus den Aufschlußlösungen erhaltene wässerige Aluminiumsalzlösungen kristallwasserhaltiger Aluminiumsalze mit feingemahlenen Rohphosphaten versetzt werden und die Umsetzung bei Temperaturen zwischen 100 und etwa 200° C unter Druck in Gegenwart der gleichen Mineralsäure, wie sie im Aluminiumsalz als Anion enthalten ist, und in einer solchen Menge derselben erfolgt, wie sie erforderlich ist, um den im Rohphosphat über das T'ricalciumphosphat hinaus vorhandenen Anteil Kalk in das entsprechende Kalksalz umzuwandeln.Process for the production of tertiary aluminum phosphate In patent 1036 230 a process for the preparation of tertiary aluminum phosphate is described, which is characterized in that acidic digestion solutions of clay or alumina-containing materials or aqueous aluminum salt solutions obtained from the digestion solutions of aluminum salts containing water of crystallization are mixed with finely ground rock phosphates and the reaction at temperatures between 100 and about 200 ° C under pressure in the presence of the same mineral acid as is contained in the aluminum salt as an anion, and in such an amount of the same as is necessary to the present in the rock phosphate beyond the tricalcium phosphate Convert the proportion of lime into the corresponding lime salt.

Es wurde nun gefunden, daß es zur Erzielung möglichst kalkarmer Produkte vorteilhaft ist, wenn zur L;berführung des im Rohphosphat über das Tricalciumphosphat hinaus vorhandenen Kalkanteils in das entsprechende Kalksalz mehr als die dafür erforderliche Menge freier Säure eingesetzt wird. Beispiel 50,00 g Marokkophosphat (enthaltend 16,7 g P2 0,5 und 25,2 g Ca 0), 88,25g Al (1\T03)3 - 9 H20 (enthaltend 12,0 g A12 03 und 44,5 g H INT 03) und 50,00 g Wasser werden mit a) 12,25 g H N 03 = erforderliche Menge (6,1% freie Säure), b) 18,40 g H N 03 = 1,5fache Menge (8,9% freie Säure), c) 24,50 g H N 03 = 2,Ofache Menge (11,5% freie Säure) unter Druck auf 200° C gebracht.It has now been found that, in order to obtain products that are as low in lime as possible, it is advantageous if more than the amount of free acid required for this is used to convert the lime content present in the rock phosphate beyond the tricalcium phosphate into the corresponding lime salt. Example 50.00 g of morocco phosphate (containing 16.7 g of P2 0.5 and 25.2 g of Ca 0), 88.25 g of Al (1 \ T03) 3-9 H20 (containing 12.0 g of A12 03 and 44.5 g H INT 03) and 50.00 g water are mixed with a) 12.25 g HN 03 = required amount (6.1% free acid), b) 18.40 g HN 03 = 1.5 times the amount (8.9 % free acid), c) 24.50 g HN 03 = 2, O-fold amount (11.5% free acid) brought to 200 ° C. under pressure.

Nach 5 Stunden wird erkalten gelassen, das Reaktionsgemisch filtriert und der Filterrückstand mit Wasser heiß ausgewaschen und schließlich getrocknet. Es werden erhalten: aus a) 32,5 g Aluminiumphosphat, enthaltend A12 03 31,00% = 10,08 g = 84,0% der Einwaage P2 0S 46,80% = 15,21 g = 91,2% der Einwaage Ca 0: 5,151/o= 1,67g= 6,6 % der Einwaage aus b) 29,0 g Aluminiumphosphat, enthaltend A1_ 0,3: 3 0/0 = 10,16 g = 84,6 % der Einwaage P2 0S 48,100/0 = 13,95g = 83,6% der Einwaage CaO: 3,441)/o= 0,90g= 3,6% der Einwaage aus c) 24,5g Aluminiimumphosphat, enthaltend Ale 03 35,601/o,= 8,72g = 72,6% der Einwaage P2047,800/0 = 11,71 g = 70,2% der Einwaage Ca 0.-0331 % = 0,07 g = 0,3 % der EinwaageAfter 5 hours, it is allowed to cool, the reaction mixture is filtered and the filter residue is washed out with hot water and finally dried. The following are obtained: from a) 32.5 g of aluminum phosphate, containing A12 03 31.00% = 10.08 g = 84.0% of the initial weight, P2 0S 46.80% = 15.21 g = 91.2% of the initial weight Ca 0: 5.151 / o = 1.67 g = 6.6% of the initial weight from b) 29.0 g aluminum phosphate, containing A1_ 0.3: 3 0/0 = 10.16 g = 84.6% of the initial weight P2 0S 48.100 / 0 = 13.95g = 83.6% of the initial weight CaO: 3.441) / o = 0.90g = 3.6% of the initial weight from c) 24.5g aluminum phosphate, containing ale 03 35.601 / o, = 8.72g = 72.6% of the initial weight P2047,800 / 0 = 11.71 g = 70.2% of the initial weight Ca 0.-0331% = 0.07 g = 0.3% of the initial weight

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von tertiärem Aluminiumphosphat nach Patent 1036 230, dadurch gekennzeichnet, daß zur Herstellung von tertiärem Aluminiumorthophosphat die Tonerde- bzw. die Aluminiumsalzlösungen oder Aluminiumsalze in Gegenwart einer größeren Menge freier Mineralsäure eingesetzt werden, als sie zur Überführung des im Rohphosphat über das Tricalciumphosphat hinaus vorhandenen Kalkanteils in das entsprechende Kalksalz erforderlich ist.PATENT CLAIM: Process for the production of tertiary aluminum phosphate according to patent 1036 230, characterized in that for the production of tertiary aluminum orthophosphate the alumina or aluminum salt solutions or aluminum salts are used in the presence of a larger amount of free mineral acid than they are used to convert the rock phosphate in the Tricalciumphosphat addition existing lime content in the corresponding lime salt is required.
DEC14810A 1957-05-10 1957-05-10 Process for the production of tertiary aluminum phosphate Pending DE1052376B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC14810A DE1052376B (en) 1957-05-10 1957-05-10 Process for the production of tertiary aluminum phosphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC14810A DE1052376B (en) 1957-05-10 1957-05-10 Process for the production of tertiary aluminum phosphate

Publications (1)

Publication Number Publication Date
DE1052376B true DE1052376B (en) 1959-03-12

Family

ID=7015733

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC14810A Pending DE1052376B (en) 1957-05-10 1957-05-10 Process for the production of tertiary aluminum phosphate

Country Status (1)

Country Link
DE (1) DE1052376B (en)

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