EP4602016A1 - Feuerfestes produkt aus aluminiumoxid-zirkonoxid-siliciumdioxid - Google Patents

Feuerfestes produkt aus aluminiumoxid-zirkonoxid-siliciumdioxid

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Publication number
EP4602016A1
EP4602016A1 EP23790298.6A EP23790298A EP4602016A1 EP 4602016 A1 EP4602016 A1 EP 4602016A1 EP 23790298 A EP23790298 A EP 23790298A EP 4602016 A1 EP4602016 A1 EP 4602016A1
Authority
EP
European Patent Office
Prior art keywords
less
product according
mass content
zro
even less
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.)
Pending
Application number
EP23790298.6A
Other languages
English (en)
French (fr)
Inventor
Isabelle Cabodi
Olivier Citti
Isabell GROSS
Pierrick VESPA
Michel Gaubil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saint Gobain Centre de Recherche et dEtudes Europeen SAS
Original Assignee
Saint Gobain Centre de Recherche et dEtudes Europeen SAS
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 Saint Gobain Centre de Recherche et dEtudes Europeen SAS filed Critical Saint Gobain Centre de Recherche et dEtudes Europeen SAS
Publication of EP4602016A1 publication Critical patent/EP4602016A1/de
Pending legal-status Critical Current

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
    • 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
    • C04B35/10—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 aluminium oxide
    • C04B35/107—Refractories by fusion casting
    • C04B35/109—Refractories by fusion casting containing zirconium oxide or zircon (ZrSiO4)
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
    • C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
    • C03B5/42—Details of construction of furnace walls, e.g. to prevent corrosion; Use of materials for furnace walls
    • C03B5/43—Use of materials for furnace walls, e.g. fire-bricks
    • 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
    • C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
    • C04B35/484—Refractories by fusion casting
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213—Strontium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215—Barium oxides or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
    • 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
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint

Definitions

  • - B 2 O 3 is present as an impurity and/or the mass content of boron oxide B 2 Os is less than 0.90%, preferably less than 0.80%, preferably less than 0.70% , preferably less than 0.60%, preferably less than 0.50%, less than 0.40%, % or even less than 0.30%, even less than 0.20%, or even less than 0.10 %;
  • the melted and cast refractory product according to the invention comprises, in mass percentages based on the oxides:
  • K 2 O 1.00% to 2.00%, preferably 1.10% to 1.80%
  • Fe 2 O 3 + TiO 2 ⁇ 0.60% other species: ⁇ 1.0% with a ratio (K 2 O/1.52) / (Na 2 O + K 2 O/1.52) greater than 0 .65, or even greater than 0.70.
  • the melted and cast refractory product according to the invention comprises, in mass percentages based on the oxides:
  • ZrO 2 + HfO 2 42.5% to 49.5%, preferably 42.5% to 48.0%, SiO 2 : 10.5% to 13.0%, preferably 1 1.0% to 13.0%
  • K 2 O 0.70% to 1.80%, preferably 0.80% to 1.60%
  • Na 2 O ⁇ 0.60%, preferably ⁇ 0.50%, preferably ⁇ 0.40%
  • Fe 2 Os + TiO 2 ⁇ 0.60% other species: ⁇ 1.0% with a ratio (K 2 O/1.52) / (Na 2 O + K 2 O/1.52) greater than 0, 62, preferably greater than 0.65, preferably greater than 0.70.
  • K 2 O ⁇ 2.00% with a ratio (K 2 O/1.52) / (Na 2 O + K 2 O/1.52) greater than 0.60, or even greater than 0.65, at 0 .70, or 0.75.
  • the melted and cast refractory product according to the invention comprises, in mass percentages based on the oxides:
  • AI2O3 100% supplement, preferably ⁇ 44.0%
  • the melted and cast refractory product according to the invention comprises, in mass percentages based on the oxides:
  • the hafnium oxide, HfC>2, present in the product according to the invention is preferably the hafnium oxide naturally present in ZrO 2 sources. Its content in a product according to the invention is therefore less than 4%, generally less than 2%, or even less than 1%.
  • the presence of Na2O+K 2 O contributes to the feasibility of the products.
  • the mass content of Na2O+K 2 O is preferably limited in order to limit the quantity of glassy phase and in particular to maintain good resistance to corrosion by molten glass as well as good electrical resistivity.
  • K 2 O The presence of K 2 O is necessary to have a ratio (K 2 O/1.52) / (Na2 ⁇ + K 2 O/1.52) greater than 0.30, or even greater than 0.40, or even greater than 0, 50, or even greater than 0.60, or even greater than 0.62, or even greater than 0.65, and improve the electrical resistivity.
  • Na2 ⁇ has an adverse effect on electrical resistivity.
  • the mass content of sodium oxide Na2 ⁇ must therefore remain limited.
  • B2O3 may have an adverse effect on feasibility.
  • the mass content of boron oxide B 2 0s must therefore remain limited.
  • the mass content of Fe2 ⁇ 3 + TiC>2 is less than 0.60%, preferably less than 0.50%, preferably less than 0.30%.
  • the mass content of P2O5 is less than 0.05%.
  • these oxides are harmful, particularly for the exudation of refractory products or the coloring of glass and their content must be limited to traces introduced as impurities with the raw materials.
  • the “other species” are the oxide species which are not listed above, namely species other than ZrO 2 , HfC>2, SiC>2, Al2O3, Na2 ⁇ , K 2 O, B2O3, Y2O3, TiC>2 and Fe2 ⁇ 3.
  • the "other species” are limited to species whose presence is not particularly desired and which are generally present as impurities in the raw materials.
  • the product according to the invention is in the form of a block, preferably a block of which at least one, preferably at least two, or even all of the overall dimensions are greater than 150 mm.
  • This process consists of using an electric arc furnace whose arc flashes between the load and at least one electrode spaced from this load and in adjusting the length of the arc so that its reducing action is reduced to a minimum, while maintaining a oxidizing atmosphere above the molten bath and by stirring said bath, for example by the action of the arc itself.
  • step c) the cooling is preferably carried out at a speed of less than 20°C per hour, preferably at a speed of approximately 10°C per hour, preferably in a mold of the desired dimensions, taking into account the weighting and possible machining after step c).
  • the products were prepared using the classic arc furnace melting process, then poured into a mold to obtain blocks with a minimum size of 150 mm x 250 mm x 500 mm after unblocking.
  • Example 5 contains 0.68% Ta20s.
  • the HfC>2 content is always less than 4%.
  • the ratio (K 2 O/1.52) / (Na2 ⁇ + K 2 O/1.52) is denoted “Ratio”.
  • the external state of the products obtained is observed. Their size, with the three dimensions greater than 150 mm and at least one dimension of at least 400 mm, makes it possible to estimate industrial feasibility. If a through slot is present, the feasibility is considered unsatisfactory. The products are then cut in half to observe the filling. In case of incorrect filling, the feasibility is considered unsatisfactory. Otherwise, the feasibility is considered satisfactory. All examples of the invention present satisfactory feasibility.
  • Ratio greater than 0.30 when the Na 2 O content is less than 0.60% makes it possible to achieve electrical resistivity values greater than that of the reference.
  • the Ratio is greater than 0.60, even greater than 0.62, or even greater than 0.65, the electrical resistivity values are significantly improved.
  • the invention therefore provides a product which has remarkable performance in the environment of a glass melting furnace tank, particularly in the hearth.
  • the invention is not limited to the embodiments described and represented, provided for illustrative purposes only.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Composite Materials (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
EP23790298.6A 2022-10-14 2023-10-13 Feuerfestes produkt aus aluminiumoxid-zirkonoxid-siliciumdioxid Pending EP4602016A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2210623A FR3140879A1 (fr) 2022-10-14 2022-10-14 PRODUIT REFRACTAIRE Alumine-Zircone-Silice
PCT/EP2023/078575 WO2024079357A1 (fr) 2022-10-14 2023-10-13 Produit refractaire alumine-zircone-silice

Publications (1)

Publication Number Publication Date
EP4602016A1 true EP4602016A1 (de) 2025-08-20

Family

ID=85278664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23790298.6A Pending EP4602016A1 (de) 2022-10-14 2023-10-13 Feuerfestes produkt aus aluminiumoxid-zirkonoxid-siliciumdioxid

Country Status (5)

Country Link
EP (1) EP4602016A1 (de)
JP (1) JP2025535748A (de)
CN (1) CN120051447A (de)
FR (1) FR3140879A1 (de)
WO (1) WO2024079357A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119551994B (zh) * 2024-12-03 2025-12-26 江苏徐耐新材料科技股份有限公司 一种致密抗裂电熔锆刚玉砖及其制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438552A (en) 1940-10-14 1948-03-30 Corhart Refractories Co Cast refractory product
FR75893E (fr) 1959-06-11 1961-08-18 Electro Refractaire Perfectionnements à la fabrication de produits réfractaires électrofondus contenant des oxydes minéraux
FR1208577A (fr) 1958-07-07 1960-02-24 Electro Refractaire Perfectionnements à la fabrication de produits réfractaires électrofondus contenant des oxydes minéraux
FR82310E (fr) 1962-04-07 1964-01-24 Electro Refractaire Perfectionnements à la fabrication de produits réfractaires électro-fondus contenant des oxydes minéraux
DE69901468T2 (de) 1998-02-26 2002-11-28 Asahi Glass Co., Ltd. Schmelzgegossenes Aluminiumoxid-Zirkonoxid-Siliziumoxid-Feuerfestmaterial und Glasschmelzofen, in den dieses eingesetzt wird
FR2961506B1 (fr) 2010-06-21 2014-03-14 Saint Gobain Ct Recherches Bloc refractaire et four de fusion de verre
WO2017115698A1 (ja) * 2015-12-28 2017-07-06 旭硝子株式会社 アルミナ・ジルコニア・シリカ質耐火物、ガラス溶融窯、およびガラス板の製造方法
CN107555971B (zh) 2017-09-29 2021-02-02 淄博艾杰旭刚玉材料有限公司 高温下高电阻率的电熔azs砖及其制备方法
CN111278789B (zh) * 2017-11-07 2022-12-27 旭硝子陶瓷株式会社 氧化铝/氧化锆/二氧化硅质熔融铸造耐火物和玻璃熔融窑

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Publication number Publication date
JP2025535748A (ja) 2025-10-28
WO2024079357A1 (fr) 2024-04-18
CN120051447A (zh) 2025-05-27
FR3140879A1 (fr) 2024-04-19

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