DE330064C - Process for the production of fire-resistant insulating compounds from alumina and alkaline silicate base materials and combustible fillers - Google Patents
Process for the production of fire-resistant insulating compounds from alumina and alkaline silicate base materials and combustible fillersInfo
- Publication number
- DE330064C DE330064C DE1919330064D DE330064DD DE330064C DE 330064 C DE330064 C DE 330064C DE 1919330064 D DE1919330064 D DE 1919330064D DE 330064D D DE330064D D DE 330064DD DE 330064 C DE330064 C DE 330064C
- Authority
- DE
- Germany
- Prior art keywords
- alumina
- fire
- production
- base materials
- resistant insulating
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Compositions Of Oxide Ceramics (AREA)
Description
Verfahren zur Herstellung von feuerbeständigen Isoliermassen aus tonerde-und alkalihaltigen Silikatgrundstoffen und verbrennlichen Füllstoffen. Es ist bekannt, feuerbeständige Isoliermassen aus eiyiem Gemenge von tonerde- und alkalihaltigen Silikatgrundstoffen mit verbrennbaren Füllstoffen dadurch herzustellen, daß man demselben Aluminiumoxydhydrat in zweckmäßig frisch gefälltem Zustande zusetzt.Process for the production of fire-resistant insulating compounds from alumina and alkaline silicate base materials and combustible fillers. It is known, Fire-resistant insulating compounds made from a mixture of alumina and alkaline To produce silicate base materials with combustible fillers that one added to the same aluminum oxide hydrate in an expediently freshly precipitated state.
Die auf diese Weise erhaltenen Isoliermassen besitzen jedoch häufig nur eine für die verlangte Isolierfähigkeit unzureichende Pörosität. Der Versuch, durch Zusatz größerer Mengen von verbrennbaren Füllstoffen, wie Kohlenstaub, Sägespäne, Torfmull o. dgl., die Porosität des Enderzeugnisses zu vergrößern, scheiterte an der Schwierigkeit des Ausbrennens der Füllstoffe, da der Luftzutritt in das Innere der Formlinge unterbunden wurde.However, the insulating compounds obtained in this way often have only insufficient porosity for the required insulating properties. The attempt, by adding larger amounts of combustible fillers such as coal dust, sawdust, Peat litter or the like to increase the porosity of the end product failed the difficulty of burning out the fillers because of the air ingress into the interior the moldings was prevented.
Eine Temperatursteigerung zur Herbeiführang der restlosen Verbrennung .der Füllstoffe im Kern der Formlinge bewirkte nur, daß die Tonsubstanz in Schmelzfluß geriet, wodurch die Poren auf der Oberfläche der Formlinge zuschmolzen und diese dadurch von vornherein unbrauchbar wurden.An increase in temperature to bring about complete combustion .the fillers in the core of the briquettes only caused the clay substance to melt gotten, whereby the pores on the surface of the molded articles melted and these thus became unusable from the start.
Der Erfinder hat nun durch zahlreiche Versuche festgestellt, .d'aß die in die Formlinge eingebetteten, verbrennbaren Füllstoffe gleichzeitig vollkommen und äußerst schnell verbrennen, ehe die Garbrandtemperatur der Formlinge erreicht; wird; wenn - man Aluminiumoxydhydrat in einer Säure, zweckmäßig verdünnter Mineralsäure, löst und die Lösung dem zum Anteigen des Grund- und Füllstoffgemisches erforderlichen Wasser zusetzt. Dadurch wird nach Ansicht des Erfinders eine Einwirkung auf die Füllstoffe, insbesondere auf Kohle oder kohleartige Stoffe, bereits auf kaltem Wege durch Zersetzung erzielt. Es entsteht eine leicht formbare Masse von hoher Plastizität, welche leicht zusammenbackt. Beim Brennen wird durch die freiwerdenden, in Dampfform übergehenden Säurebestandteile eine hohe Porosität erzeugt, während bereits vor Erreichung der Garbrandtemperatur durch den ermöglichten Luftzutritt sämtliche verbrennbaren Füllstoffe zur restlosen Verbrennung gelangen..The inventor has now established through numerous experiments that .d'ass the combustible fillers embedded in the moldings are complete at the same time and burn extremely quickly before the briquettes reach the cooking temperature; will; if - one aluminum oxide hydrate in an acid, expediently diluted mineral acid, dissolves and the solution to the paste required for the base and filler mixture Adding water. In the opinion of the inventor, this has an effect on the Fillers, especially on charcoal or charcoal-like substances, already in the cold way achieved by decomposition. The result is an easily malleable mass of high plasticity, which cakes easily. When burning is released, in vapor form Acid constituents passing over creates a high porosity, while already before Achievement of the cooking firing temperature through the air admission made possible for all combustible ones Fillers are burned completely.
Durch die Säure werden gleichzeitig die alkalischen Bestandteile der Silikate 'aufgeschlossen und ebenfalls in der Masse wie das Aluminiumoxydhydrat gleichmäßig verteilt, wobei sich schmelzbare Verbindungen bilden, die zur Befestigung der Formlinge wesentlich beitragen.The alkaline components of the Silicates' open and also in the mass like the aluminum oxide hydrate evenly distributed, forming fusible connections that are necessary for fastening of the moldings contribute significantly.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE330064T | 1919-05-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE330064C true DE330064C (en) | 1920-11-27 |
Family
ID=6188018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1919330064D Expired DE330064C (en) | 1919-05-11 | 1919-05-11 | Process for the production of fire-resistant insulating compounds from alumina and alkaline silicate base materials and combustible fillers |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE330064C (en) |
-
1919
- 1919-05-11 DE DE1919330064D patent/DE330064C/en not_active Expired
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