GB1386013A - Process of producing refractory magnesia-chrome bricks and compositions - Google Patents

Process of producing refractory magnesia-chrome bricks and compositions

Info

Publication number
GB1386013A
GB1386013A GB2046672A GB2046672A GB1386013A GB 1386013 A GB1386013 A GB 1386013A GB 2046672 A GB2046672 A GB 2046672A GB 2046672 A GB2046672 A GB 2046672A GB 1386013 A GB1386013 A GB 1386013A
Authority
GB
United Kingdom
Prior art keywords
per cent
compositions
cro
chrome
added
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
GB2046672A
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.)
Osterreichisch Amerikanische Magnesit AG
Original Assignee
Osterreichisch Amerikanische Magnesit 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 Osterreichisch Amerikanische Magnesit AG filed Critical Osterreichisch Amerikanische Magnesit AG
Publication of GB1386013A publication Critical patent/GB1386013A/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
    • C04B35/047—Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • C04B35/0473—Refractories from grain sized mixtures containing chromium oxide or chrome ore obtained from fused grains

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

1386013 Refractory linings OSTERREICHISCH-AMERIKANISCHE MAGNESIT AG 2 May 1972 [7 May 1971] 20466/72 Heading ClJ [Also in Division F4] Linings in degasifying vessels and in converters for the oxygen-argon process (Jocelyn process) consist of magnesia-chrome bricks formed from a granulated, fused material which contains 10-35 wt. per cent Cr 2 O 3 , up to 4À5 wt. per cent CaO + SiO 2 and has a Cr 2 O 2 : Fe 2 O 3 ratio of at least 3À0. The material may be obtained by fusing a mixture of MgO or precursor thereof with chrome ore with or without added Cr 2 O 3 or CrO 3 , either under non-reducing or reducing conditions (in which latter case, resulting metallic iron is removed magnetically). Manganese and aluminium oxides are stated to be present as impurities. In one embodiment, up to 10 wt. per cent of finely-ground Cr 2 O 3 or CrO 3 is added to the fused material.
GB2046672A 1971-05-07 1972-05-02 Process of producing refractory magnesia-chrome bricks and compositions Expired GB1386013A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT397971A AT319838B (en) 1971-05-07 1971-05-07 Material for lining degassing vessels, converters and electric furnaces

Publications (1)

Publication Number Publication Date
GB1386013A true GB1386013A (en) 1975-03-05

Family

ID=3558005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2046672A Expired GB1386013A (en) 1971-05-07 1972-05-02 Process of producing refractory magnesia-chrome bricks and compositions

Country Status (6)

Country Link
AT (1) AT319838B (en)
ES (1) ES402226A1 (en)
FR (1) FR2137640B1 (en)
GB (1) GB1386013A (en)
IT (1) IT951293B (en)
NL (1) NL7206143A (en)

Also Published As

Publication number Publication date
AT319838B (en) 1975-01-10
IT951293B (en) 1973-06-30
FR2137640A1 (en) 1972-12-29
FR2137640B1 (en) 1980-04-18
NL7206143A (en) 1972-11-09
ES402226A1 (en) 1975-03-16

Similar Documents

Publication Publication Date Title
ES470960A1 (en) Thermal processes for the production of magnesium
GB1406608A (en) Lime composition
GB1369655A (en) Process for making stainless steel
GB1386013A (en) Process of producing refractory magnesia-chrome bricks and compositions
US3915696A (en) Sintered preformed slag for the steel industry
GB1503278A (en) Gate valves made of refractory basic material
GB999436A (en) Refractory and method of making same
US3106447A (en) Recovering magnesium-aluminum spinel from ferro-chromium slag
GB1397200A (en) Process of producing metallic iron from iron oxides
FR2060010A6 (en) Partial basic monolithic lining for vac - uum degassing vessel
GB1327749A (en) Process of producing a sintered refractory material
ES386444A1 (en) Sintered preformed slag for the steel industry
ES298884A1 (en) Improvements introduced in the manufacture of refractory bricks (Machine-translation by Google Translate, not legally binding)
GB1213530A (en) Basic fused refractory material
GB1282206A (en) Process of manufacturing refractory magnesia-chrome and chrome-magnesia bricks
GB1418653A (en) Lining induction crucible furnaces
SU206608A1 (en)
US1811314A (en) Refractory material
US2851350A (en) Process for producing titanium enriched slag
US2286577A (en) Pyrometallurgical process for the production of pig-iron and ferrochromium
GB1506656A (en) High fired basic direct bonded magnesia-chrome ore refractory shapes and their method of manufacture
GB1339670A (en) Metallothermic production of magnesium in the presence of a substantially static atmosphere of inert gas
SU431236A1 (en) METHOD OF PREPARATION OF CHARGE TO GET SILICON AND ITS ALLOYS
GB1153153A (en) Refractory bodies and process for manufacturing them
GB1316802A (en) Process for the production of ferromanganese

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee