GB571693A - An improved manufacture of magnesia-containing refractories - Google Patents

An improved manufacture of magnesia-containing refractories

Info

Publication number
GB571693A
GB571693A GB11437/43A GB1143743A GB571693A GB 571693 A GB571693 A GB 571693A GB 11437/43 A GB11437/43 A GB 11437/43A GB 1143743 A GB1143743 A GB 1143743A GB 571693 A GB571693 A GB 571693A
Authority
GB
United Kingdom
Prior art keywords
magnesia
refractory
silicate
fluoride
per cent
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
GB11437/43A
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.)
Basic Refractories Inc
Original Assignee
Basic Refractories Inc
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 Basic Refractories Inc filed Critical Basic Refractories Inc
Publication of GB571693A publication Critical patent/GB571693A/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

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

Refractories containing magnesia and a magnesium silicate have 1-10 per cent of calcium fluoride added to them in order to react with any low-melting silicate such as monticellite and transform it to a silicate of higher melting point. On firing, the fluoride flows readily throughout the mass of the refractory and is finally decomposed. The refractory contains at least 70 per cent magnesia, and may also contain chromite. The amount of fluoride required is obtained by subtracting the molecular equivalent of lime in the refractory from twice the molecular equivalent of silica and multiplying the result by 78.
GB11437/43A 1942-07-28 1943-07-14 An improved manufacture of magnesia-containing refractories Expired GB571693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US571693XA 1942-07-28 1942-07-28

Publications (1)

Publication Number Publication Date
GB571693A true GB571693A (en) 1945-09-05

Family

ID=22008924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11437/43A Expired GB571693A (en) 1942-07-28 1943-07-14 An improved manufacture of magnesia-containing refractories

Country Status (1)

Country Link
GB (1) GB571693A (en)

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