CH207443A - Process for the production of water-soluble basic aluminum nitrate. - Google Patents
Process for the production of water-soluble basic aluminum nitrate.Info
- Publication number
- CH207443A CH207443A CH207443DA CH207443A CH 207443 A CH207443 A CH 207443A CH 207443D A CH207443D A CH 207443DA CH 207443 A CH207443 A CH 207443A
- Authority
- CH
- Switzerland
- Prior art keywords
- aluminum
- aluminum nitrate
- water
- basic aluminum
- production
- Prior art date
Links
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 title claims description 17
- 238000000034 method Methods 0.000 title claims description 10
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 8
- 150000001447 alkali salts Chemical class 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010494 opalescence Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/66—Nitrates, with or without other cations besides aluminium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
Verfahren zur Herstellung von wasserlöslichem basischem Aluminiumnitrat. Gegenstand des Hauptpatentes ist ein Verfahren zur Herstellung von wasserlöslichem basischem Aluminiumchlorid, bei dem man in wässrigen Lösungen von normalem bis höchstens schwach basischem Aluminium chlorid, deren Aluminiumgehalt mindestens 5 g Als0s im Liter entspricht, bei erhöhter Temperatur, jedoch unterVermeidung längerer Einwirkung von Siedehitze, mindestens die gleiche Menge metallisches Aluminium löst, die in der angewandten Menge Aluminium chlorid enthalten ist.
Es wurde nun gefunden, dass man in ent sprechender Weise zu (echt oder kolloidal) wasserlöslichem, basischem Aluminiumnitrat gelangt, wenn man an Stelle der wässrigen Aluminiumchloridlösungen wässrige Alumini umnitratlösungen verwendet, deren Alumini umgehalt berechnet als Alss0s mindestens ä g im Liter beträgt.
Zweckmässig verwendet man Lösungen, die 8 g und mehr A120s im Liter enthalten. Die Zugabe von Katalysatoren, wie Quecksilber oder Schwermetallsalzen, ist nicbt erforderlich.
Das Aluminium löst sich unter Entwicklung von Wasserstoff ohne Bildung unlöslicher Verbindungen auf, und es entsteht eine völlig wasserklare, helle, nicht opales zierende Lösung eines basischen Aluminium nitrates mit einer Basizität von mindestens 60%. Durch den gebildeten Wasserstoff wird ein Teil der Salpetersäure reduziert und man erhält infolgedessen ein höherbasisches Nitrat, als sich aus der angewandten Menge Alu minium und Aluminiumnitrat errechnet.
Beim Eindampfen erhält man ein weisses, klar und ohne Opaleszenz in Wasser lösliches Trockenerzeugnis. Das Eindampfen wird zweck. mässig im Vakuum vorgenommen. Bei sehr langem Kochen unter gewöhnlichem Druck geht die Wasserlöslichkeit der Erzeugnisse verloren.
Man kann die Aluminiumnitratlösung un mittelbar vor der Einwirkung der zu basi- achemAluminiumnitrat führenden Menge Alu- minium durch Auflösen von Aluminium in wässriger Salpetersäure herstellen. Hierbei kann man so verfahren, dalli man das Alu minium mit solehen Mengen wässriger Sal petersäure behandelt, die höchstens 50'/,) der angewandten Aluminiummenge in Form von nichtbasischem Aluminiu:r:nitrat zu lösen ver mögen.
Hierbei bildet sich zunächst das nicht basische Salz, in dem sieh anschliessend das übrige Aluminium zum basischen Salz löst.
Die Temperatur bei der Unisetzung kann zwischen 35 C und der Siedetemperatur der Lösung gewählt werden; je nach ihrer Höhe sind die physikalischen und chemischen Eigen schaften der- Erzeugnisse etwas verschieden. Besonders empfehlenswert ist das Arbeiten bei etwa 70-80 C, da darin mit Sicherheit klar lösliche Erzeugnisse erhalten werden.
Gemäss der Erfindung hergestelltes basi- ",ches Aluminiumnitrat ist vorzüglich zum Weissgerben geeignet. Das basische Salz kann auch als Ausgangsstoff für die Gewinnung von Adsorbentien, als Katalysator, ferner in der Papier- und pharmazeutischen Industrie oder zum Hydrophobieren von Textilien Ver Wendung finden.
<I>Beispiel:</I> 375 Gewichtsteile kristallisiertes Alumi niumnitrat werden in 1000 Gewichtsteilen Wasser gelöst und mit 135 Gewichtsteilen Aluminiumpulver oder-spänen versetzt. Man erhitzt bis zur vollständigen Lösung des Alu miniums, filtriert die Lösung und dampft im Vakuum zur Trockne ein. Es wird ein in Wasser lösliches Pulver erhalten.
Process for the production of water-soluble basic aluminum nitrate. The subject of the main patent is a process for the production of water-soluble basic aluminum chloride, in which in aqueous solutions of normal to at most weakly basic aluminum chloride, the aluminum content of which corresponds to at least 5 g Als0s per liter, at elevated temperature, but avoiding prolonged exposure to boiling heat, at least dissolves the same amount of metallic aluminum that is contained in the applied amount of aluminum chloride.
It has now been found that (true or colloidal) water-soluble, basic aluminum nitrate is obtained in a corresponding manner if, instead of the aqueous aluminum chloride solutions, aqueous aluminum nitrate solutions are used whose aluminum content, calculated as Alss0s, is at least ¼ g per liter.
It is advisable to use solutions that contain 8 g and more A120s per liter. The addition of catalysts such as mercury or heavy metal salts is not required.
The aluminum dissolves with the development of hydrogen without the formation of insoluble compounds, and a completely water-clear, light, non-opalescent solution of a basic aluminum nitrate with a basicity of at least 60% is created. Part of the nitric acid is reduced by the hydrogen formed and, as a result, a more highly basic nitrate is obtained than can be calculated from the amount of aluminum and aluminum nitrate used.
Evaporation results in a white, clear dry product which is soluble in water without opalescence. Evaporation becomes useful. made moderately in a vacuum. If the product is cooked for a long time under normal pressure, the water-solubility of the products is lost.
The aluminum nitrate solution can be prepared by dissolving aluminum in aqueous nitric acid immediately before the action of the amount of aluminum leading to basic aluminum nitrate. The procedure here is to treat the aluminum with such amounts of aqueous nitric acid that are capable of dissolving at most 50% of the amount of aluminum used in the form of non-basic aluminum nitrate.
Here the non-basic salt is formed first, in which the remaining aluminum then dissolves to form the basic salt.
The temperature at which the solution is set can be selected between 35 ° C. and the boiling point of the solution; Depending on their level, the physical and chemical properties of the products are somewhat different. Working at around 70-80 C is particularly recommended, as clearly soluble products are definitely obtained.
Basic aluminum nitrate produced according to the invention is particularly suitable for white tanning. The basic salt can also be used as a starting material for the production of adsorbents, as a catalyst, furthermore in the paper and pharmaceutical industry or for making textiles water-repellent.
<I> Example: </I> 375 parts by weight of crystallized aluminum nitrate are dissolved in 1000 parts by weight of water and 135 parts by weight of aluminum powder or chips are added. The mixture is heated until the aluminum is completely dissolved, the solution is filtered and evaporated to dryness in a vacuum. A powder soluble in water is obtained.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE207443X | 1937-01-25 | ||
| CH205519T | 1938-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH207443A true CH207443A (en) | 1939-10-31 |
Family
ID=25724180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH207443D CH207443A (en) | 1937-01-25 | 1938-01-21 | Process for the production of water-soluble basic aluminum nitrate. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH207443A (en) |
-
1938
- 1938-01-21 CH CH207443D patent/CH207443A/en unknown
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