Method of producing MgO and Cr.sub.2 O.sub.3 based refractories

Details Method of producing MgO and Cr.sub.2 O.sub.3 based refractories Method of producing MgO and Cr.sub.2 O.sub.3 based refractories

1976-05-19

1977-02-15

Poer, J.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

C04B 3542

Patent

active

040080927

ABSTRACT:
A method is provided for the production of magnesium oxide -- chromic oxide wherein magnesium chromite of about 3 to 82 weight percent Cr.sub.2 O.sub.3 is mixed with 0.05 to 4 weight percent of CaO or SrO and sintering the mixture at a temperature above about 1750.degree. C.

REFERENCES:
patent: 2068641 (1937-01-01), Carrie et al.
patent: 2270220 (1942-01-01), Pitt et al.
patent: 3574144 (1971-04-01), Yerouchalmi
patent: 3715223 (1973-02-01), Wright

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