GB1501460A - Refractory compositions - Google Patents

Refractory compositions

Info

Publication number
GB1501460A
GB1501460A GB8085/75A GB808575A GB1501460A GB 1501460 A GB1501460 A GB 1501460A GB 8085/75 A GB8085/75 A GB 8085/75A GB 808575 A GB808575 A GB 808575A GB 1501460 A GB1501460 A GB 1501460A
Authority
GB
United Kingdom
Prior art keywords
magnesia
cao
refractory
composition
zro
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
Application number
GB8085/75A
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.)
Veitscher Magnesitwerke AG
Original Assignee
Veitscher Magnesitwerke AG
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 Veitscher Magnesitwerke AG filed Critical Veitscher Magnesitwerke AG
Publication of GB1501460A publication Critical patent/GB1501460A/en
Expired 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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/0435—Refractories from grain sized mixtures containing refractory metal compounds other than chromium oxide or chrome ore
    • 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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • 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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C04B35/0476—Refractories from grain sized mixtures containing chromium oxide or chrome ore obtained from prereacted sintered grains ("simultaneous sinter")

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

1501460 Magnesia refractories VEITSCHER MAGNESITWERKE-ACTIEN-GES 26 Feb 1975 [26 Feb 1974] 8085/75 Headings CIJ and C1A An unsintered magnesia-based refractory composition comprises (a) a magnesia component or a material which can be calcined to yield a magnesia component having a CaO/SiO 2 weight ratio of at least 1À87 and containing, by weight of the magnesia component, at most 0À7% SiO 2 , at most 6% CaO, at least 3% R 2 O 3 (defined) and at least 2% Fe 2 O 3 , and (b) a ZrO 2 -containing material having a ZrO 2 content of at least 90% and/or a Zr compound calculable to a solid residue containing at least 90 wt. per cent ZrO 2 , the total quantity of the material and/or solid residue being at least sufficient, on sintering of the composition, to bind in the form of calcium zirconate the amount of CaO potentially necessary for the formation of dicalcium ferrite and any other CaO-R 2 O 3 compound corresponding to the R 2 O 3 content as well as any potentially free CaO. R 2 O 3 is defined as the Fe 2 O 3 and any Al 2 O 3 , Cr 2 O 3 , B 2 O 3 and Mn 2 O 3 impunties. The refractory composition may contain up to 50% chrome ore or magnesia-chrome sinter based on the total weight of refractory composition. Refractory bricks or blocks may be made from the sintered or unsintered composition, and in forming the bricks or blocks, use may be made of a chemical binder or a tar or pitch binder. The unsintered refractory materials may be impregnated with a carbon carrier of high carbon content. In the examples, blocks or bricks are made from magnesia components and 3 or 4% zirconia.
GB8085/75A 1974-02-26 1975-02-26 Refractory compositions Expired GB1501460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT157274A AT347843B (en) 1974-02-26 1974-02-26 PROCESS FOR THE MANUFACTURING OF REFRACTORY BURNED OR UNBURNTED STONES AND OF REFRACTORY BULK BASED ON MAGNESIA

Publications (1)

Publication Number Publication Date
GB1501460A true GB1501460A (en) 1978-02-15

Family

ID=3516312

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8085/75A Expired GB1501460A (en) 1974-02-26 1975-02-26 Refractory compositions

Country Status (7)

Country Link
AT (1) AT347843B (en)
DE (1) DE2507556C2 (en)
ES (1) ES435063A1 (en)
FR (1) FR2262000B1 (en)
GB (1) GB1501460A (en)
IT (1) IT1030212B (en)
SE (1) SE397822B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198427A (en) * 1986-10-27 1988-06-15 British Nuclear Fuels Plc Inorganic ion exchange materials
ES2117926A1 (en) * 1994-02-01 1998-08-16 Veitsch Radex Ag Sintered magnesia, process and apparatus for producing sintered magnesia and its use
CN111943718A (en) * 2020-08-25 2020-11-17 洛阳科创新材料股份有限公司 Porous ceramic part for metal liquid purifier and preparation method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT349966B (en) * 1975-10-20 1979-05-10 Veitscher Magnesitwerke Ag METHOD FOR MANUFACTURING FIRED REFRACTORY MAGNESIA BRICKS
FR2423476A1 (en) * 1978-04-06 1979-11-16 Oreal NEW 2,4-DIHYDROXY DIPHENYLAMINES AND TINCTORIAL COMPOSITIONS FOR HAIR CONTAINING THEM
AU570018B2 (en) * 1982-12-06 1988-03-03 Chloride Silent Power Ltd. Sodium beta alumina electrolyte element
CH669146A5 (en) * 1986-03-14 1989-02-28 Netstal Ag Maschf Giesserei PLASTIC INJECTION MOLDING MACHINE.
DE3617904A1 (en) * 1986-05-28 1987-12-03 Refratechnik Gmbh Spinel-forming composition and the use thereof in refractory magnesia bricks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1413985A (en) * 1972-02-11 1975-11-12 Steetley Mfg Ltd Refractory magnesia
AT315058B (en) * 1972-05-23 1974-05-10 Veitscher Magnesitwerke Ag Fired refractory stone

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198427A (en) * 1986-10-27 1988-06-15 British Nuclear Fuels Plc Inorganic ion exchange materials
US4971729A (en) * 1986-10-27 1990-11-20 British Nuclear Fuels Plc Inorganic ion exchange material
GB2198427B (en) * 1986-10-27 1991-02-13 British Nuclear Fuels Plc Inorganic ion exchange materials
ES2117926A1 (en) * 1994-02-01 1998-08-16 Veitsch Radex Ag Sintered magnesia, process and apparatus for producing sintered magnesia and its use
CN111943718A (en) * 2020-08-25 2020-11-17 洛阳科创新材料股份有限公司 Porous ceramic part for metal liquid purifier and preparation method thereof

Also Published As

Publication number Publication date
SE7502071L (en) 1975-08-27
DE2507556A1 (en) 1975-08-28
SE397822B (en) 1977-11-21
FR2262000A1 (en) 1975-09-19
ATA157274A (en) 1978-05-15
FR2262000B1 (en) 1982-04-23
DE2507556C2 (en) 1982-08-12
AT347843B (en) 1979-01-10
IT1030212B (en) 1979-03-30
ES435063A1 (en) 1976-12-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee