NO341528B1 - Råstoff med høyt innhold av aluminiumoksid, fremstilling og anvendelse derav - Google Patents

Råstoff med høyt innhold av aluminiumoksid, fremstilling og anvendelse derav

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Publication number
NO341528B1
NO341528B1 NO20040064A NO20040064A NO341528B1 NO 341528 B1 NO341528 B1 NO 341528B1 NO 20040064 A NO20040064 A NO 20040064A NO 20040064 A NO20040064 A NO 20040064A NO 341528 B1 NO341528 B1 NO 341528B1
Authority
NO
Norway
Prior art keywords
alumina
aluminum hydroxide
aluminum
trihydrate
monohydrate
Prior art date
Application number
NO20040064A
Other languages
English (en)
Other versions
NO20040064L (no
Inventor
Reinhard Feige
Gerhard Merker
Jürgen Steyer
Original Assignee
Aluminium Salzschlacke Aufbereitungs Gmbh
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 Aluminium Salzschlacke Aufbereitungs Gmbh filed Critical Aluminium Salzschlacke Aufbereitungs Gmbh
Publication of NO20040064L publication Critical patent/NO20040064L/no
Publication of NO341528B1 publication Critical patent/NO341528B1/no

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    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/24—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing alkyl, ammonium or metal silicates; containing silica sols
    • C04B28/26—Silicates of the alkali metals
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    • 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
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    • C01—INORGANIC CHEMISTRY
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    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/42—Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation
    • C01F7/428—Preparation of aluminium oxide or hydroxide from metallic aluminium, e.g. by oxidation by oxidation in an aqueous solution
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    • C01F7/00—Compounds of aluminium
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  • General Life Sciences & Earth Sciences (AREA)
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  • Environmental & Geological Engineering (AREA)
  • Composite Materials (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Sammendrag Det beskrives et høyaluminiumoksidråstoff som, beregnet på tørrvekt, består av 50 - 80 vektprosent Al2O3, 2 - 15 vektprosent MgO, 1 - 15 vektprosent SiO2, 0,5 - 20 vektprosent CaO, 0,5 - 2 vektprosent Fe2O3, 0,5 - 2 vektprosent Na2O, 0,1 - 2 vektprosent metallisk Al, 0,1 - 1 vektprosent AlN, 0, 1 - 1,5 vektprosent K2O, 0,1 - 2 vektprosent F, 0,1 - 0, 8 vektprosent Cl, maksimalt 5 vektprosent rester til sammen, med et glødetap på maksimalt 15 vektprosent, og med de mineralske hovedbestanddeler 20 - 60 vektprosent aluminiumhydroksid, 10 - 40 vektprosent korund a -Al2O3, og 5 - 40 vektprosent spinell MgAl2O4, der forholdet mellom aluminiumhydroksid i form av Al-monohydroksid Al2O3 og Al-trihydroksid Al2O3.3H20 på vektbasis er større enn 0,25. Råstoffets fremstilling beskrives og videre dets anvendelse, særlig som sintringsaktiv aluminiumoksidbærer for fremstilling av keramiske og ildfaste produkter, sement, porøse bindemiddelbyggmaterialer, slaggdannere for jern og stålproduksjon samt mineralull og keramiske fibere.
NO20040064A 2003-01-08 2004-01-08 Råstoff med høyt innhold av aluminiumoksid, fremstilling og anvendelse derav NO341528B1 (no)

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DE10300170B4 (de) 2004-12-16
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US7015167B2 (en) 2006-03-21
DE10300170B9 (de) 2005-04-21
CA2454952C (en) 2007-07-31
NO20040064L (no) 2004-07-09
ES2254991T3 (es) 2006-06-16
ATE311346T1 (de) 2005-12-15
CA2454952A1 (en) 2004-07-08
US20040259718A1 (en) 2004-12-23
DE502004000146D1 (de) 2006-01-05
EP1440937B1 (de) 2005-11-30

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