GB1428641A - Sintering inhibitor for fused mgo grain - Google Patents

Sintering inhibitor for fused mgo grain

Info

Publication number
GB1428641A
GB1428641A GB1307173A GB1307173A GB1428641A GB 1428641 A GB1428641 A GB 1428641A GB 1307173 A GB1307173 A GB 1307173A GB 1307173 A GB1307173 A GB 1307173A GB 1428641 A GB1428641 A GB 1428641A
Authority
GB
United Kingdom
Prior art keywords
fused
alumina
magnesia
sintering inhibitor
zirconia
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
GB1307173A
Inventor
John J Scott
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.)
Saint Gobain Abrasives Inc
Original Assignee
Norton Co
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 Norton Co filed Critical Norton Co
Publication of GB1428641A publication Critical patent/GB1428641A/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
    • 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
    • C01F5/00—Compounds of magnesium
    • C01F5/02—Magnesia
    • C01F5/06—Magnesia by thermal decomposition of magnesium compounds

Abstract

1428641 Sintered magnesia; refractories NORTON CO 19 March 1973 [20 March 1972] 13071/73 Headings C1A and C1J Fused magnesia grain containing up to 3000 p.p.m. of boron is mixed with 0À5 to 7% of an agent containing titania, zirconia or alumina or mixtures thereof and heated at 950-1275‹ C. to lower its sinter index by reaction of the boron with said agent. The additive is preferably selected from zirconia, alumina, titania, fused zircon, a fused mixture of alumina and zircon or magnesium zirconate. The magnesia and the additive are preferably ground to a size of less than 325 mesh. 6% of TiO 2 or ZrO 2 are described.
GB1307173A 1972-03-20 1973-03-19 Sintering inhibitor for fused mgo grain Expired GB1428641A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23633372A 1972-03-20 1972-03-20

Publications (1)

Publication Number Publication Date
GB1428641A true GB1428641A (en) 1976-03-17

Family

ID=22889070

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1307173A Expired GB1428641A (en) 1972-03-20 1973-03-19 Sintering inhibitor for fused mgo grain

Country Status (13)

Country Link
AT (1) AT335402B (en)
AU (1) AU471542B2 (en)
BE (1) BE796664A (en)
BR (1) BR7301861D0 (en)
CA (1) CA984859A (en)
DE (1) DE2313502C2 (en)
FR (1) FR2176686B1 (en)
GB (1) GB1428641A (en)
IN (1) IN138837B (en)
IT (1) IT977925B (en)
PL (1) PL84844B1 (en)
YU (1) YU35524B (en)
ZA (1) ZA731324B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115926492A (en) * 2022-11-07 2023-04-07 广东金戈新材料股份有限公司 Preparation method and use method of mineralizer capable of reducing oil absorption value of magnesium oxide

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337916A1 (en) * 1993-11-06 1995-05-11 Aken Magnesitwerk Gmbh Shaped and unshaped refractory compositions based on magnesia

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695242A (en) * 1954-11-23 Magnesia-containing material
US3281137A (en) * 1963-09-26 1966-10-25 Corhart Refractories Co Refractory and furnace lining
US3457092A (en) * 1966-10-25 1969-07-22 Norton Co Granular electrically insulating material of magnesia and fused zircon
US3520706A (en) * 1967-10-26 1970-07-14 Dresser Ind Method of making magnesite brick

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115926492A (en) * 2022-11-07 2023-04-07 广东金戈新材料股份有限公司 Preparation method and use method of mineralizer capable of reducing oil absorption value of magnesium oxide

Also Published As

Publication number Publication date
CA984859A (en) 1976-03-02
PL84844B1 (en) 1976-04-30
ATA229473A (en) 1976-07-15
BE796664A (en) 1973-09-13
IN138837B (en) 1976-04-03
FR2176686A1 (en) 1973-11-02
DE2313502C2 (en) 1983-12-15
AU5296373A (en) 1974-09-12
DE2313502A1 (en) 1973-10-04
AU471542B2 (en) 1976-04-29
IT977925B (en) 1974-09-20
FR2176686B1 (en) 1975-10-31
YU66573A (en) 1980-10-31
BR7301861D0 (en) 1974-07-11
YU35524B (en) 1981-04-30
ZA731324B (en) 1973-11-28
AT335402B (en) 1977-03-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19930318