GB1133371A - Improved method of preparing magnesia spinel - Google Patents

Improved method of preparing magnesia spinel

Info

Publication number
GB1133371A
GB1133371A GB14394/66A GB1439466A GB1133371A GB 1133371 A GB1133371 A GB 1133371A GB 14394/66 A GB14394/66 A GB 14394/66A GB 1439466 A GB1439466 A GB 1439466A GB 1133371 A GB1133371 A GB 1133371A
Authority
GB
United Kingdom
Prior art keywords
alumina
magnesia spinel
pressed
particle size
improved method
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
GB14394/66A
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.)
Alcan Research and Development Ltd
Original Assignee
Aluminium Laboratories 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
Priority claimed from US507568A external-priority patent/US3304153A/en
Application filed by Aluminium Laboratories Ltd filed Critical Aluminium Laboratories Ltd
Publication of GB1133371A publication Critical patent/GB1133371A/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
    • C04B35/44—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
    • C04B35/443—Magnesium aluminate spinel
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/16—Preparation of alkaline-earth metal aluminates or magnesium aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/162—Magnesium aluminates
    • 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
    • C04B35/10—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 aluminium 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
    • C04B35/12—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
    • C04B35/42—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
    • 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

Abstract

1,133,371. Magnesia spinel. ALUMINIUM LABORATORIES Ltd. 31 March, 1966 [12 Nov., 1965], No. 14394/66. Addition to 1,038,573. Heading C1A. MgO.Al 2 O 3 is prepared by calcining at 850- 1000‹ C. a homogeneous mixture of alumina hydrate, lightly calcined alumina, or alphaalumina, at least 40% of which has a particle size less than 10Á, and magnesium hydroxide, magnesium carbonate, basic magnesium carbonate, or lightly calcined magnesium oxide, at least 90% of which has a particle size less than 10Á, together with 0À2-4% of a fluorinecontaining material, except when α-alumina is used. The Mg compound is preferably present in excess, which is subsequently removed by leaching with dil. HC1. The fluorine containing material may be AlF 3 , HF, F 2 , NH 4 F, or CaF 2 . The mixture may be pressed, e.g. at 4000 p.s.i. The product may be reground to 92% less than 10Á (size distribution specified) and pressed and fired to give a body of density above 3.45 g./c.c.
GB14394/66A 1963-04-16 1966-03-31 Improved method of preparing magnesia spinel Expired GB1133371A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US27331063A 1963-04-16 1963-04-16
US507568A US3304153A (en) 1965-11-12 1965-11-12 Method of preparing magnesia spinel

Publications (1)

Publication Number Publication Date
GB1133371A true GB1133371A (en) 1968-11-13

Family

ID=26956104

Family Applications (2)

Application Number Title Priority Date Filing Date
GB13503/64A Expired GB1038573A (en) 1963-04-16 1964-04-01 Improved method of preparing magnesia spinel
GB14394/66A Expired GB1133371A (en) 1963-04-16 1966-03-31 Improved method of preparing magnesia spinel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB13503/64A Expired GB1038573A (en) 1963-04-16 1964-04-01 Improved method of preparing magnesia spinel

Country Status (2)

Country Link
DE (2) DE1275935B (en)
GB (2) GB1038573A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701701A1 (en) * 1993-02-19 1994-08-26 Daimler Benz Ag MgAl2O4 over-stoichiometric spinel, as well as method for its synthesis and use of MgAl2O4 over-stoichiometric spinel.
WO1997008113A1 (en) * 1995-08-28 1997-03-06 Hudribusch, Leopold Blend for the preparation of spinel refractory material

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108840690A (en) * 2018-07-10 2018-11-20 武汉科技大学 A kind of micro-nano hierarchical porous structure magnesium aluminate spinel and preparation method thereof
CN111072049B (en) * 2019-12-28 2022-09-27 海城市中昊镁业有限公司 Preparation method of high-density medium-grade sintered magnesia
CN114804168A (en) * 2022-05-07 2022-07-29 湖北晶耐新材料有限公司 Preparation method of high-purity aluminum-rich magnesium spinel

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR350016A (en) * 1904-06-24 1905-08-24 Alexandre De Karischeff Products refractory to physical and chemical agents and manufacturing process
DE628575C (en) * 1932-05-20 1936-04-07 Ton & Steinzeug Werke Akt Ges Building material for the manufacture of turbine blades and components that are subjected to similar mechanical and thermal stresses
DE1128352B (en) * 1959-01-21 1962-04-19 Electrodes Et Refractaires Ias Process for the production of refractory masses based on magnesium aluminate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701701A1 (en) * 1993-02-19 1994-08-26 Daimler Benz Ag MgAl2O4 over-stoichiometric spinel, as well as method for its synthesis and use of MgAl2O4 over-stoichiometric spinel.
WO1997008113A1 (en) * 1995-08-28 1997-03-06 Hudribusch, Leopold Blend for the preparation of spinel refractory material

Also Published As

Publication number Publication date
GB1038573A (en) 1966-08-10
DE1275935B (en) 1968-08-22
DE1571299B2 (en) 1969-12-04
DE1571299A1 (en) 1969-12-04

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