DD296800A7 - PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER - Google Patents
PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER Download PDFInfo
- Publication number
- DD296800A7 DD296800A7 DD74179063A DD17906374A DD296800A7 DD 296800 A7 DD296800 A7 DD 296800A7 DD 74179063 A DD74179063 A DD 74179063A DD 17906374 A DD17906374 A DD 17906374A DD 296800 A7 DD296800 A7 DD 296800A7
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- sic
- binder
- products
- containing products
- alumina
- Prior art date
Links
Abstract
Patentanspruch: Verfahren zur Herstellung SiC-haltiger Erzeugnisse mit einem speziellen Bindemittel, dadurch gekennzeichnet, dass als Bindemittel aktivierte und Aluminiumoxid, -Oxidhydrat sowie -Hydroxid enthaltende Tonerde eingesetzt wird.Claim: A process for the preparation of SiC-containing products with a special binder, characterized in that activated alumina, oxide hydrate and hydroxide containing alumina is used as a binder.
Description
1. Ausführungsbeispiel Calzinierte Tonerde wird in einer Naßtrommelmühle unter Zusatz von 0,5% Carboxymethylzellulose und 1 % Sulfitablauge, Dichte 1,3g/cm3, einer Naßmahlung unterzogen.1st embodiment Calcined alumina is subjected to wet milling in a wet-drum mill with the addition of 0.5% carboxymethyl cellulose and 1% sulphite waste liquor, density 1.3 g / cm 3 .
Bei diesem Aktivierungsvorgang, der dann beendet wird, wenn die Suspension ein 63 pm-Sieb rückstandslos passiert, der Rückstand bei einem 45pm-Sieb soll nach Möglichkeit 5% nicht übersteigen, bilden sich an der Oberfläche dor Primärteilchen Hydratphasen aus. Diese Hydratphasen zeigen beim Übergang in die Oxidform in Verbindung mit dem entstehenden SiO2 durch Oxydation von SiC bei einem späteren Erzeugnisbrand eine hohe Reaktionsbereitschaft bei der Mullitausbildung in der Matrix.In this activation process, which is terminated when the suspension passes a 63 pm sieve residue, the residue in a 45 pm sieve should not exceed 5% if possible, form on the surface of the primary particles hydrate phases. These hydrate phases show a high reactivity in the formation of mullite in the matrix during the transition into the oxide form in conjunction with the resulting SiO 2 by oxidation of SiC in a later product firing.
Die Gewinnung des Aluminiumoxids und der entstandenen Hydrutphasen aus der Suspension erfolgt nach bekannten Entwässerungsverfahren, vorzugsweise mit der Zerstäubungstrocknung'technik. Im letzteren Fall erhält man je nach den gewählten Bedingungen ein AI2O3 und AIO(OH) sowie AI(OH)3 enthaltendes Sprühkorn mit einem Korndurchmesser umThe recovery of the aluminum oxide and the resulting Hydrutphasen from the suspension is carried out by known dewatering process, preferably with the Zerstäubungstrocknung'technik. In the latter case, depending on the chosen conditions, an AI 2 O 3 and AIO (OH) and AI (OH) 3 containing spray grain having a grain diameter
In einem Zwangsmischer werdenBecome in a compulsory mixer
15% SiC 0,0 bis 0,3 mm 15% SiC 0,1 bis 0,2 mm 10% SiC 0,2 bis 0,5mm 10% SiC 0,5 bis 1,0mm 35% SiC 1,0 bis 2,5mm15% SiC 0.0 to 0.3 mm 15% SiC 0.1 to 0.2 mm 10% SiC 0.2 to 0.5 mm 10% SiC 0.5 to 1.0 mm 35% SiC 1.0 to 2 5mm
mit 1 Liter Wasser und 2,5 Liter Sulfitablauge pro 100 kg Trockenmischung vorgemischt. Danach gibt man in den Zwangsmischer 15% AI2O3, AIO(OH) und AI(OH)3 enthaltendes Sprühkorn hinzu. Das so hergestellte Preßgemenge wird auf üblichen Presseneinrichtungen zu Formkörpern verarbeitet.premixed with 1 liter of water and 2.5 liters of sulfite liquor per 100 kg dry mix. Thereafter, 15% Al 2 O 3 , AIO (OH) and Al (OH) 3 containing spray grain are added to the forced mixer. The Preßgemenge thus prepared is processed on conventional press equipment into moldings.
2.Ausfuhrungsbeisplel In einem Zwangsmischer werden2.Execution statement Become a compulsory mixer
15% AI2O3, AIO(OH) und AI(OH)3 enthaltendes Sprühkorn 30% SiC 0,0 bis 0,3 mm 20% Edelkorund, Korn 10%Edelkoruiid,Korn63 25% Edelkorund, Korn30% Al 2 O 3 , AIO (OH) and Al (OH) 3- containing sprayed particles 30% SiC 0.0 to 0.3 mm 20% corundum, grain 10% corundum, grain 63 25% corundum, grain
unter Zusatz von 1 Liter Wasser und 2,5 Liter Sulfitablauge pro 100kg Trockenmischung zu einem Proßgemenge aufbereitet und auf üblichen Pressoneinrichtungenzu Formkörpern verarbeitet.prepared with the addition of 1 liter of water and 2.5 liters of sulfite liquor per 100 kg of dry mixture to a Proßgemenge and processed on conventional Pressoneinrichtungenzu moldings.
3. Ausführungsbeispiel In einem Zwangsmischer werden3rd embodiment In a compulsory mixer
15% AI2O3, AIO(OH) und AI(OH)3 enthaltendes Sprühkorn 30% SiC 0,0 bis 0,3 mm 55% synthetischer Mullit 0,5 bis 2mmSpray Grain Containing 15% Al 2 O 3 , AIO (OH), and Al (OH) 3 30% SiC 0.0 to 0.3 mm 55% Synthetic Mullite 0.5 to 2mm
unter Zusatz von 1 Liter Wasser und 2,5 Liter Sulfitablauge pro 100kg Trockenmischung zu einem Preßgemenge aufbereitet und auf üblichen Presseneinrichtungen zu Formkörpern verarbeitet.prepared with the addition of 1 liter of water and 2.5 liters of sulfite liquor per 100 kg of dry mixture to a Preßgemenge and processed on conventional press equipment into moldings.
Das Brennen der in den Ausführungsbeispielen 1 bis 3 beschriebenen Formkörper erfolgt vorzugsweise bei Temperaturen oberhalb 14000C.The firing of the shaped bodies described in the embodiments 1 to 3 is preferably carried out at temperatures above 1400 0 C.
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD74179063A DD296800A7 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
DD74179064A DD301635A8 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD74179063A DD296800A7 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
DD74179064A DD301635A8 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
Publications (1)
Publication Number | Publication Date |
---|---|
DD296800A7 true DD296800A7 (en) | 1991-12-19 |
Family
ID=25747524
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD74179064A DD301635A8 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
DD74179063A DD296800A7 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD74179064A DD301635A8 (en) | 1974-06-12 | 1974-06-12 | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER |
Country Status (1)
Country | Link |
---|---|
DD (2) | DD301635A8 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338159A1 (en) * | 1993-11-02 | 1995-05-04 | Projektierung Und Anlagenbau G | Binder for mullite-bonded SiC-containing products and process for their manufacture |
-
1974
- 1974-06-12 DD DD74179064A patent/DD301635A8/en unknown
- 1974-06-12 DD DD74179063A patent/DD296800A7/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4338159A1 (en) * | 1993-11-02 | 1995-05-04 | Projektierung Und Anlagenbau G | Binder for mullite-bonded SiC-containing products and process for their manufacture |
Also Published As
Publication number | Publication date |
---|---|
DD301635A8 (en) | 1993-05-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0279772B1 (en) | Silica brick and process for its production | |
DE2926667A1 (en) | MICROPOROUS MATERIAL, METHOD FOR THE PRODUCTION THEREOF, STARTING MATERIAL FOR THE MANUFACTURING METHOD AND USE OF THE MATERIAL | |
DE3105531C2 (en) | Process for the production of fire-resistant or refractory masses, masses produced by the process and their use | |
DE1442731A1 (en) | Process for the conversion of hydrocarbons with steam using a catalyst | |
DE3518411C2 (en) | ||
DD296800A7 (en) | PROCESS FOR PRODUCING SIC-CONTAINING PRODUCTS WITH A SPECIAL BINDER | |
DE2554405A1 (en) | PROCESS FOR EXTRACTION OF PURE FOUNDRY SAND | |
DE3100727A1 (en) | "METHOD FOR THE PRODUCTION OF CARBONING AGENTS" | |
DE2455500A1 (en) | THERMAL INSULATING MASS | |
DE8318245U1 (en) | SPOUT NOZZLE, ESPECIALLY THE SPRING PAN OR THE INTERMEDIATE TUBE | |
DE3119425A1 (en) | MANUFACTURE OF NITRIDE BONDED FIREPROOF BODIES | |
DE2450944A1 (en) | Ceramic tiles or bricks - produced from mixt. of ball clay and waste mud from limestone dressing (NL280476) | |
DE2659218A1 (en) | METHOD OF MANUFACTURING A CEMENT CLINKER | |
DE2739040C3 (en) | Refractory masses based on aluminum silicates and their uses | |
DE2109193A1 (en) | Means for drying organic gaseous polymerization-sensitive compounds having carbon-carbon unsaturated bonds while preventing the polymerization of these compounds | |
DD231338A1 (en) | METHOD FOR PRODUCING FIRE-RESISTANT HEAT-DRYING FORMKOERPER AND GEMENGE | |
AT319494B (en) | Breaker core for sand mold casting, especially for iron and steel casting, and process for its manufacture | |
DE380492C (en) | Process for the production of a fireproof building material from clay and siliceous substances | |
AT295382B (en) | Process for the production of a shaped body from refractory material | |
DE3720460A1 (en) | METHOD FOR PRODUCING A BURNED, FIREPROOF MAGNESIA STONE BASED ON SINTERMAGNESIA AND FINE DISTRIBUTED CIRCONIZED SILICONE | |
DE3230253A1 (en) | Plastic fibre material for applications in the refractory field, and the use thereof | |
DD233836A1 (en) | METHOD FOR PRODUCING HIGH QUALITY TONER DEZEMENTS WITH ADVANTAGEOUS HYDRATION AND HIGH TEMPERATURE BEHAVIOR | |
DE4019861C2 (en) | ||
DE2113940A1 (en) | Increasing reactivity of solids - eg when acting as solid catalysts | |
DD159325A1 (en) | FIRE-RESISTANT PRODUCTS |