GB873765A - Process for the production of basic refractory bricks or shapes - Google Patents

Process for the production of basic refractory bricks or shapes

Info

Publication number
GB873765A
GB873765A GB4040258A GB4040258A GB873765A GB 873765 A GB873765 A GB 873765A GB 4040258 A GB4040258 A GB 4040258A GB 4040258 A GB4040258 A GB 4040258A GB 873765 A GB873765 A GB 873765A
Authority
GB
United Kingdom
Prior art keywords
weight
brick
fired
normal
bricks
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
GB4040258A
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.)
Oughtibridge Silica Firebrick Co Ltd
Original Assignee
Oughtibridge Silica Firebrick Co Ltd
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 Oughtibridge Silica Firebrick Co Ltd filed Critical Oughtibridge Silica Firebrick Co Ltd
Priority to GB4040258A priority Critical patent/GB873765A/en
Publication of GB873765A publication Critical patent/GB873765A/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
    • C04B35/42—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 chromites
    • 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
    • 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
    • C04B35/12—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 chromium oxide
    • 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

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

A process for producing a basic refractory brick or shape, which may contain magnesia and one or more of the spinels, such as chrome-, alumina- and iron-spinel, comprises heating together (e.g. in a rotary or brick-making kiln) the normal constituents of a basic refractory, in normal gradings and proportions, to a temperature of 1300 DEG C. or more, for a time such as is used in normal refractory brick manufacture, then crushing and grading the fired product from which a brick or shape is moulded and re-fired in the normal way. E.g. for producing a "chrome-magnesite" brick, crushed and screened chrome ore, with particles from 0,5 m.m. to 4m.m., is blended with magnesia "flour," which is finer than 0,25 m.m., using 2 to 10% by weight water and 2% by weight sulphite lye bond. The proportions used may comprise between 20% and 80% by weight of chrome ore and between 80% and 20% by weight of "magnesite." The above mixture is pressed into bricks and fired at 1300 DEG C. or more. Following the firing, the bricks are crushed and graded to a particle size not greater than 4 m.m., with 30% by weight of the composition less than 0,25 m.m. in particle size. After pressing into bricks or shapes, the magnesia (MgO) and spinel (MgO. Cr2O3) composition is re-fired at 1500 DEG C. or more.
GB4040258A 1958-12-15 1958-12-15 Process for the production of basic refractory bricks or shapes Expired GB873765A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4040258A GB873765A (en) 1958-12-15 1958-12-15 Process for the production of basic refractory bricks or shapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4040258A GB873765A (en) 1958-12-15 1958-12-15 Process for the production of basic refractory bricks or shapes

Publications (1)

Publication Number Publication Date
GB873765A true GB873765A (en) 1961-07-26

Family

ID=10414730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4040258A Expired GB873765A (en) 1958-12-15 1958-12-15 Process for the production of basic refractory bricks or shapes

Country Status (1)

Country Link
GB (1) GB873765A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360387A (en) * 1966-08-09 1967-12-26 Bethlehem Steel Corp Magnesia chrome ore refractory
EP0521679A1 (en) * 1991-06-27 1993-01-07 Harbison-Walker Refractories Company Burned refractories with low water soluble chromium(VI)oxide content

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360387A (en) * 1966-08-09 1967-12-26 Bethlehem Steel Corp Magnesia chrome ore refractory
EP0521679A1 (en) * 1991-06-27 1993-01-07 Harbison-Walker Refractories Company Burned refractories with low water soluble chromium(VI)oxide content
US5322827A (en) * 1991-06-27 1994-06-21 Indresco, Inc. Burned refractories with low soluble chromium

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