GB822763A - Improvements relating to the manufacture of refractory bricks and refractory masses from chromium ore - Google Patents

Improvements relating to the manufacture of refractory bricks and refractory masses from chromium ore

Info

Publication number
GB822763A
GB822763A GB10640/57A GB1064057A GB822763A GB 822763 A GB822763 A GB 822763A GB 10640/57 A GB10640/57 A GB 10640/57A GB 1064057 A GB1064057 A GB 1064057A GB 822763 A GB822763 A GB 822763A
Authority
GB
United Kingdom
Prior art keywords
grains
ore
refractory
alkaline earth
finest
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
GB10640/57A
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.)
Didier Werke AG
Original Assignee
Didier Werke 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 Didier Werke AG filed Critical Didier Werke AG
Publication of GB822763A publication Critical patent/GB822763A/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

Refractory masses containing chromium ore are obtained by first wetting or coating grains of the ore with silica and then with an alkaline earth metal oxide. Progenitors can be used instead of the oxides. The mol ratio of alkaline earth-metal oxide to silica is preferably 2 to 1 but an excess of the oxide can be allowed. Magnesium is included as an alkaline earth metal. The finest grains are preferably removed before the ore is treated, but this finest portion, as it contains the majority of any gangue present, can act as a flux when e.g. magnesite or corundum is added to the coarse grains of ore, but not more than 30%-relative to the total weight of additive and finest grains-is used. When the grains are wetted, waterglass, or an organic silicate, e.g. a silicone solution is used.
GB10640/57A 1956-06-07 1957-04-01 Improvements relating to the manufacture of refractory bricks and refractory masses from chromium ore Expired GB822763A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE822763X 1956-06-07

Publications (1)

Publication Number Publication Date
GB822763A true GB822763A (en) 1959-10-28

Family

ID=6744194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10640/57A Expired GB822763A (en) 1956-06-07 1957-04-01 Improvements relating to the manufacture of refractory bricks and refractory masses from chromium ore

Country Status (1)

Country Link
GB (1) GB822763A (en)

Similar Documents

Publication Publication Date Title
ES408499A1 (en) Lime composition for basic oxygen steel-making process
GB822763A (en) Improvements relating to the manufacture of refractory bricks and refractory masses from chromium ore
ES273198A1 (en) Zirconium stain for ceramic glazes
SE7611161L (en) REFRACTORY LINING OF STATIONS OR MOVING CANLES FOR RECEIVING THE RAJERN
ES309198A1 (en) Procedure for the manufacture of refractory bodies linked ceramically. (Machine-translation by Google Translate, not legally binding)
GB1021374A (en) Treatment of metals
SU128576A1 (en) Binder for ceramic molds for casting on melted models
GB659260A (en) Improvements in refractory bricks having a high heat conductivity
GB657156A (en) Process for the production of magnesium alloys containing zirconium
GB908636A (en) Light concrete mixes
ES266536A1 (en) Ceramic pigments
GB686876A (en) Method of manufacture of cristobalite
GB1037878A (en) Production of refractory silica articles
GB968457A (en) Improvements in ceramic stains
GB919322A (en) Manufacture of aluminous cement
GB770757A (en) Improvements in and relating to the casting of metals
JPS5684187A (en) Novel production of thermit
AU217015B2 (en) Improvements relating to refractory silica cements
AU2153456A (en) Improvements relating to refractory silica cements
CA575857A (en) Metal reinforced refractory brick
GB713811A (en) Improvements in and relating to basic refractory bricks and other basic refractory products
GB928458A (en) Improvements in exothermic shaped products for use in foundry practice
ES259885A1 (en) Procedure for manufacturing agglomerates for different purposes, among other construction (Machine-translation by Google Translate, not legally binding)
FR911591A (en) Improvements to processes for sealing metals or alloys to vitrified materials, such as glass, silica, porcelain and the like
GB824539A (en) Improvements in or relating to welding electrodes