GB867796A - Improvements relating to refractory bricks - Google Patents

Improvements relating to refractory bricks

Info

Publication number
GB867796A
GB867796A GB13568/59A GB1356859A GB867796A GB 867796 A GB867796 A GB 867796A GB 13568/59 A GB13568/59 A GB 13568/59A GB 1356859 A GB1356859 A GB 1356859A GB 867796 A GB867796 A GB 867796A
Authority
GB
United Kingdom
Prior art keywords
mgo
mesh
plus
weight
forming
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
GB13568/59A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB867796A publication Critical patent/GB867796A/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

A basic refractory brick comprises coarse MgO particles at least 90% of which are plus 28 mesh (Tyler) and forming 50%-90% by weight of the total MgO content, fine MgO particles with at least 90% minus 48 mesh forming 10%-50% by weight of the total MgO, the intermediate sized particles forming less than 10% of the MgO content, and 0,5% to 12 1/2 % by weight of calcined Al2O3 of which at least 70% is plus 35 mesh. Magnesite containing 88,6% MgO plus CaO, Al2O3, Fe2O3 and SiO2 is a suitable source of MgO and 1%-10% of minus 28 mesh iron powder is added as a bond. Additional bonding agents are: -sulphuric acid, sodium acid sulphate, chromic acid, magnesium sulphate, sulphate paper waste, lignin or kaolin, and the moistened compressed mixture may be fired above 1550 DEG C. or fired during use. The ratio of CaO to SiO2 in the brick may exceed 1. Specifications 546,220, 711,933, 778,047 and U.S.A. Specification 2,063,543 are referred to.
GB13568/59A 1958-04-21 1959-04-21 Improvements relating to refractory bricks Expired GB867796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US867796XA 1958-04-21 1958-04-21

Publications (1)

Publication Number Publication Date
GB867796A true GB867796A (en) 1961-05-10

Family

ID=22200850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13568/59A Expired GB867796A (en) 1958-04-21 1959-04-21 Improvements relating to refractory bricks

Country Status (1)

Country Link
GB (1) GB867796A (en)

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