DE548065C - Production of pure clay - Google Patents
Production of pure clayInfo
- Publication number
- DE548065C DE548065C DEV26634D DEV0026634D DE548065C DE 548065 C DE548065 C DE 548065C DE V26634 D DEV26634 D DE V26634D DE V0026634 D DEV0026634 D DE V0026634D DE 548065 C DE548065 C DE 548065C
- Authority
- DE
- Germany
- Prior art keywords
- alumina
- production
- alumina hydrate
- corundum
- sludge
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000004927 clay Substances 0.000 title 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- 239000010802 sludge Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 4
- 239000010431 corundum Substances 0.000 claims description 4
- 239000000571 coke Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 2
- 150000003464 sulfur compounds Chemical class 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 claims 1
- 102000005298 Iron-Sulfur Proteins Human genes 0.000 claims 1
- 108010081409 Iron-Sulfur Proteins Proteins 0.000 claims 1
- BWSUYJOEGXZTNB-UHFFFAOYSA-N [O-2].[Al+3].[S-2].[Al+3] Chemical group [O-2].[Al+3].[S-2].[Al+3] BWSUYJOEGXZTNB-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000001953 recrystallisation Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- LLZRNZOLAXHGLL-UHFFFAOYSA-J titanic acid Chemical compound O[Ti](O)(O)O LLZRNZOLAXHGLL-UHFFFAOYSA-J 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 241001676573 Minium Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- COOGPNLGKIHLSK-UHFFFAOYSA-N aluminium sulfide Chemical compound [Al+3].[Al+3].[S-2].[S-2].[S-2] COOGPNLGKIHLSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 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
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/38—Preparation of aluminium oxide by thermal reduction of aluminous minerals
- C01F7/40—Preparation of aluminium oxide by thermal reduction of aluminous minerals in the presence of aluminium sulfide
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Thermal Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Description
Herstellung reiner Tonerde Die vorliegende Erfindung betrifft eine weitere Ausgestaltung des Verfahrens des Patents 541 627.Production of Pure Alumina The present invention relates to one further development of the process of patent 541 627.
Gemäß genanntem Patent erfolgt die Herstellung einer hochreinen Tonerde aus tonerdehaltigen unreinen Materialien auf Grund einer doppelten Kristallisation aus dem schmelzflüssigen Zustand, wobei zwischen den beiden Schmelzungen eine Abkühlung, und zwar wenigstens bis zum Kristallisationspunkt des Aluminiumoxyds stattfindet.According to the patent mentioned, a high-purity alumina is produced from impure materials containing alumina due to double crystallization from the molten state, with a cooling between the two melts, namely takes place at least up to the crystallization point of the aluminum oxide.
Die vorliegende Erfindung benutzt diese Raffinationsmethode für die Herstellung einer hochreinen Tonerde aus dem Korund- und Tonerdehydrat enthaltenden Schlamm, der in bekannter Weise aus bei der Verarbeitung tonerdehaltiger Materialien durch reduzierende Schmelzung mit Schwermetallsulfiden gewonnenen Schmelze erhalten wird; insbesondere kann man diese Schmelze mit Wasser zersetzen, einen großen Teil des Korunds durch Aufschlämmen mit Wasser vom Tonerdehydratschlamm befreien. Dieser Schlamm wird getrocknet, zu Briketts gepreßt und im Elektroofen mit einem sorgfältig bemessenen Zuschlag von Koks sowie den erforderlichen Schwefelverbindungen, beispielsweise Schwefeleisen, der zweiten Schmelzung und Raffinierung unterworfen.The present invention uses this refining method for Production of a high-purity alumina from the corundum and alumina hydrate containing Sludge that is produced in a known manner during the processing of alumina-containing materials obtained by reducing melting with heavy metal sulfides melt will; in particular, a large part of this melt can be decomposed with water Remove the alumina hydrate sludge from the corundum by slurrying it with water. This Sludge is dried, pressed into briquettes and carefully placed in an electric furnace with a measured addition of coke and the required sulfur compounds, for example Sulphurous iron, subjected to second smelting and refining.
Ein überraschendes Ergebnis des Verfahrens ist darin zu erblicken, daß dieser Schlamm, der bis 1,5 bis 2,5 °1o Titansäure enthalten kann, dabei eine weitgehende Befreiung von Titan erfährt, so daß eine Tonerde erhalten wird, die weniger als 0,03 °1o Titansäure aufweist.A surprising result of the process can be seen in the fact that this sludge, which can contain up to 1.5 to 2.5 ° 10 titanic acid, is largely freed from titanium, so that an alumina is obtained that is less than 0.03 ° 1o has titanic acid.
Wohl ist bekannt, die für die Erzeugung der Aluminiumsulfidschmelze bestimmten Ausgangsmaterialien zu brikettieren. Hiervon aber unterscheidet sich die Erfindung dadurch, daß nicht diese, sondern der durch Zersetzung der Schmelze gewonnene Tonerdeschlamm brikettiert wird, um einer zweiten Schmelzung gemäß dem Hauptpatent unterworfen zu werden.It is well known that for the production of aluminum sulphide melt to briquette certain starting materials. But this differs from this the invention in that not this, but the decomposition of the melt obtained alumina sludge is briquetted to a second melting according to the Main patent to be submitted.
In gleicher Weise wie besagter Schlamm lassen sich auch die Schlackenrückstände, die bei der Verarbeitung der tonerdehaltigen Materialien als lästiger Abfall anfallen, auf eine hochreine Tonerde verarbeiten, und zwar auch dann, wenn sie viel Titan enthalten. Zweckmäßigerweise werden diese Schlacken den Schlammbriketts zugeschlagen, wobei festgestellt wurde, daß gerade die Mischung dieser beiden unreinen Ausgangsmaterialien eine bessere Ofenführung ermöglicht, als es bei der Verarbeitung des Einzelmaterials der Fall ist. -Bedingungen für die erfolgreiche Raffinierung sind, abgesehen von der doppelten Kristallisation, eine sorgfältige Dosierung des Kokszuschlages ' zur Vermeidung jeder Alu-. miniumcarbidbildung, sorgfältiges Einhalten der Raffinations- und Schmelzperiode und ein möglichst ruhiger Ofengang zur Klärung der Schlacke und zur Bildung scharf abgegrenzter Metallsulfid- und Schlackenschichten.In the same way as said sludge, the slag residues, which arise as annoying waste during the processing of the alumina-containing materials, to process a high-purity alumina, even if it contains a lot of titanium contain. Appropriately, these slags are added to the sludge briquettes, it was found that just the mixture these two allows impure starting materials to operate better than the Processing of the single material is the case. -Conditions for successful Refining are, apart from the double crystallization, a careful one Dosage of the coke surcharge 'to avoid any aluminum. minium carbide formation, careful Compliance with the refining and melting period and the quietest possible furnace operation to clarify the slag and to form sharply defined metal sulfide and slag layers.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV26634D DE548065C (en) | 1931-04-05 | 1931-04-05 | Production of pure clay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEV26634D DE548065C (en) | 1931-04-05 | 1931-04-05 | Production of pure clay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE548065C true DE548065C (en) | 1932-08-22 |
Family
ID=7582789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEV26634D Expired DE548065C (en) | 1931-04-05 | 1931-04-05 | Production of pure clay |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE548065C (en) |
-
1931
- 1931-04-05 DE DEV26634D patent/DE548065C/en not_active Expired
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