WO1996009997A1 - Charge permettant d'obtenir de la cordierite et procede d'obtention d'une spinelle alumino-magnesique - Google Patents

Charge permettant d'obtenir de la cordierite et procede d'obtention d'une spinelle alumino-magnesique Download PDF

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Publication number
WO1996009997A1
WO1996009997A1 PCT/RU1994/000228 RU9400228W WO9609997A1 WO 1996009997 A1 WO1996009997 A1 WO 1996009997A1 RU 9400228 W RU9400228 W RU 9400228W WO 9609997 A1 WO9609997 A1 WO 9609997A1
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WO
WIPO (PCT)
Prior art keywords
aluminum
oxide
fact
magnesium
alumino
Prior art date
Application number
PCT/RU1994/000228
Other languages
English (en)
Russian (ru)
Inventor
Alexandr Axentievich Dabizha
Sergei Fedorovich Shmotiev
Nadezhda Alexandrovna Dabizha
Vyacheslav Mikhailovich Sychev
Viktor Alexandrovich Cheremisinov
Original Assignee
Alexandr Axentievich Dabizha
Sergei Fedorovich Shmotiev
Nadezhda Alexandrovna Dabizha
Vyacheslav Mikhailovich Sychev
Cheremisinov Viktor Alexandrov
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
Priority claimed from RU94007016A external-priority patent/RU2040511C1/ru
Priority claimed from RU94014796/33A external-priority patent/RU94014796A/ru
Application filed by Alexandr Axentievich Dabizha, Sergei Fedorovich Shmotiev, Nadezhda Alexandrovna Dabizha, Vyacheslav Mikhailovich Sychev, Cheremisinov Viktor Alexandrov filed Critical Alexandr Axentievich Dabizha
Publication of WO1996009997A1 publication Critical patent/WO1996009997A1/fr

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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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
    • C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
    • C04B35/195—Alkaline earth aluminosilicates, e.g. cordierite or anorthite
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
    • C04B35/443—Magnesium aluminate spinel
    • 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
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
    • C04B35/651—Thermite type sintering, e.g. combustion sintering

Definitions

  • Izves ⁇ en s ⁇ s ⁇ b izg ⁇ vleniya is ⁇ y ⁇ e ⁇ ami ⁇ i on ⁇ sn ⁇ ve alyum ⁇ magneeialn ⁇ y sh ⁇ ineli IE shi ⁇ y, s ⁇ de ⁇ zhaschey mixture ⁇ sid ⁇ v aluminum, magnesium and ⁇ emniya with ugle ⁇ dnym ⁇ sh ⁇ m in ⁇ aches ⁇ ve ⁇ - ⁇ b ⁇ aeuyuscheg ⁇ ⁇ m ⁇ nen ⁇ a ( ⁇ a ⁇ en ⁇ Ya ⁇ nii ⁇ 57-23668, ⁇ . ⁇ l. C 04 ⁇ 35/10, ⁇ ubl. 1982).
  • the cost of the process is the duration of the process of the process, which is necessary for the sustained profit of the product, and the product is also good for
  • Magnesium oxide is included; 0.3-14.8% of clay; 49.4-53.4% of the battery and an additional 28.0-50.2% of the aluminum-magnetic spinel.
  • the presence of an aluminum-magnesian spinel in the wide range causes the intensification of the process of formation of the core, as well as the expansion of the core inert.
  • the amount of metal (alloy) in the slag after the initial smelting may be from 20 to 80%, in connection with which the slurry is crushed and processed for extraction (it is extracted). After such processing, the slag is kept in a shredded state and contains 16 to 30 wt.% Aluminum oxide; 2-15% magnesium oxide; 30-70% of sodium chloride and feces; 2-15% aluminum; 0.1-10% oxides ⁇ emnia; 2-8% of other impurities, including oxides of iron, zinc, copper, titanium, calcium chloride and others, may be oxides.
  • the content of liquids may not exceed a few percentages or even ten percent of the percentage.
  • the residual content of other components is reduced: aluminum oxide up to 20-50 wt.%; magnesium oxide up to 3-20%; Oxide ⁇ emnia up to 0.2-15%.
  • the content of the metal in the slag can reach up to 25%.
  • the luminescence spinel and the “fresh” slags are obtained by the following method.
  • Shredded slag which can also be pre-cooked or sold in batch, including the use of traditional binders, is free of charge.
  • the slag heats up to 1400-1550 ° C at a speed of 100 to 300 ° C / hour and can withstand a maximum temperature for 1-6 hours.
  • removal of chlorides from the potassium and hot potassium and the formation of a pure aluminum-magnum spinel occurs.
  • ⁇ positively- waiting for the resulting spinel leads to a speed of no more than 300 ° C / hour.
  • the aluminum-magnesian spinel can be irradiated and other.
  • the crushed slag is mixed with direct carbon, the content of the total mixture in the total mixture is 3% to 15%.
  • the resulting mixture is heated to a temperature of 900-1200 ° C.
  • the aluminum-magnesian spinel obtained by one of the aforementioned methods may not be used as a result of lightly spring-loaded or In the latter case, the useful oxide also becomes the oxidized oxide of silica, which went into the spinel in terms of ballast when it was used in slag.
  • the obtained fireproof material was mainly in the aluminum and magnetic spinel and with a direct output of 57,% had an average of 11%.
  • EXAMPLE 2 Slag with particle sizes less than 200 ⁇ m, containing 30 aluminum oxide, 12% magnesium oxide, 45% sodium chloride and calcium, 5% aluminum, 0.1% aluminum oxide, and 7.9% iron oxide
  • the aluminum-magneel spinel that was formed had a clean 52.1 and was switched on Example 3.
  • the mixture was placed in a furnace and started to rise at a temperature of 600 ° C / hour. At 1200 ° C the mixture self-emitted. At the same time, the burning time exceeded 1450 ° ⁇ . The content of the spinel in the product of burning was 20%. From the obtained product of the method of selling the goods, the purchases of the products were terminated. ⁇ Resume the next baking at 1500 ° ⁇ for 20 hours. whether the products were produced with 90% spinel and 65% quick release.
  • Self-ignition of the mixture was carried out at a temperature of 1100 ° ⁇ and 1000 ° ⁇ , respectively.
  • the content of the spinel in the products of burning was 20% and 18%. Contents of the spinel after firing the burner
  • EXAMPLE 6 A mixture containing 51.4 wt.% ⁇ emneem; 5.2% magnesium oxide; 13.4 clay and 30% alumina magnetic spinel, obtained in Example 2, were doubled with a joint dry house in a mill with a shallow ground melting mill. After firing, the obtained busbar temperature at a temperature of 1380 ° C is lower than that in the case of final heating, it is higher than 99%.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

L'invention concerne la production de céramiques industrielles et de matériaux résistant au feu et on peut l'utiliser pour préparer des articles légers, résistants au feu, prévus pour être utilisés jusqu'à 1700 °C. La charge proposée pour obtenir la cordiérite comprend: 0,1 à 5,8 % en poids d'oxyde de magnésium, 0,3 à 14,8-% d'alumine, 49,4 à 53,4 % de silice et 28 à 50,2 % de spinelle alumino-magnésique. On obtient cette dernière par un des deux procédés proposés, à partir des scories salines fraîches ou lessivées résultant de la production d'alliages d'aluminium. Avec un de ces procédés, on obtient la spinelle alumino-magnésique en calcinant des scories broyées contenant 16 à 30 % en poids d'oxyde d'aluminium, 2 à 15 % d'oxyde de magnésium, 30 à 70 % de chorures de sodium et de potassium, 2 à 15 % d'aluminium, 0,1 à 10 % d'oxyde de silicium, et 2 à 8 % d'autres additifs. Le processus de calcination consiste à chauffer cette charge jusqu'à 1450-1550 °C au rythme de 100 à 300 °C par heure et à la maintenir à cette température entre une et six heures. Le deuxième procédé consiste à utiliser des scories lessivées comprenant 20 à 50 % en poids d'oxyde d'aluminium, 3 à 20 % d'oxyde de magnésium, 5 à 25 % d'aluminium, 0,2 à 15 % d'oxyde de silicium et 5 à 20 % d'autres additifs. Ces scories sont mélangées avec de la poudre de carbone (3 à 15 % en poids du mélange total) et chauffées à 900-1200 °C jusqu'à ce que le mélange initial se calcine. Pour accroître la production de spinelle alumino-magnésique, ce produit peut être soumis à une nouvelle calcination à une température de 1400-1500 °C.
PCT/RU1994/000228 1994-02-28 1994-09-28 Charge permettant d'obtenir de la cordierite et procede d'obtention d'une spinelle alumino-magnesique WO1996009997A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
RU94007016A RU2040511C1 (ru) 1994-02-28 1994-02-28 Шихта для получения кордиерита
RU94007016/33 1994-02-28
RU94014796/33 1994-04-20
RU94014796/33A RU94014796A (ru) 1994-04-20 Способ изготовления огнеупорных легковесных изделий

Publications (1)

Publication Number Publication Date
WO1996009997A1 true WO1996009997A1 (fr) 1996-04-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU1994/000228 WO1996009997A1 (fr) 1994-02-28 1994-09-28 Charge permettant d'obtenir de la cordierite et procede d'obtention d'une spinelle alumino-magnesique

Country Status (1)

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WO (1) WO1996009997A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079090A1 (fr) * 2001-03-29 2002-10-10 Commonwealth Scientific And Industrial Research Organisation Procede de production de spinelle synthetique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2075328A5 (en) * 1970-01-12 1971-10-08 Steirische Magnesit Ind Ag Light fire-brick production
FR2107166A5 (en) * 1970-09-03 1972-05-05 Coors Porcelain Co Transparent optical element - prodn from magnesia - alumina spinel an lithium fluoride by hot-pressure moulding
SU591437A1 (ru) * 1976-05-04 1978-02-05 Предприятие П/Я Г-4696 Керамическа кордиеритова масса
SU1548177A1 (ru) * 1987-11-11 1990-03-07 Казахский государственный университет им.С.М.Кирова Шихта дл получени кордиерита
US4954463A (en) * 1988-12-12 1990-09-04 Dresser Industries, Inc. Magnesium aluminate spinel refractory

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2075328A5 (en) * 1970-01-12 1971-10-08 Steirische Magnesit Ind Ag Light fire-brick production
FR2107166A5 (en) * 1970-09-03 1972-05-05 Coors Porcelain Co Transparent optical element - prodn from magnesia - alumina spinel an lithium fluoride by hot-pressure moulding
SU591437A1 (ru) * 1976-05-04 1978-02-05 Предприятие П/Я Г-4696 Керамическа кордиеритова масса
SU1548177A1 (ru) * 1987-11-11 1990-03-07 Казахский государственный университет им.С.М.Кирова Шихта дл получени кордиерита
US4954463A (en) * 1988-12-12 1990-09-04 Dresser Industries, Inc. Magnesium aluminate spinel refractory

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002079090A1 (fr) * 2001-03-29 2002-10-10 Commonwealth Scientific And Industrial Research Organisation Procede de production de spinelle synthetique

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