COPRECIPITATO DI MG-AI SPINELLO DA ESSO COSTITUITO RELATIVO METODO DI PREPARAZIONE ED OGGETTI DA ESSO PRODOTTI

Several methods are set forth for preparing polymetallic spinels by coprecipitating two or more metal compounds in a proportion to provide a total of eight positive valences when combined in the oxide form in the spinel crystal lattice. The methods disclosed require coprecipitation of the metals in...

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Main Authors HENSLEE WALTER WARREN, LINDSEY JOHN SUTTON, STROTHER GERRENE WALLACE JR, WHITWORTH CHARLES ROBERT, PERIARD JOHN NEIL, ECKERT WILLIAM MARK, BERTELSMAN DALE MARION, MORROW STANLEY JOSEPH
Format Patent
LanguageItalian
Published 10.06.1987
Edition4
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Abstract Several methods are set forth for preparing polymetallic spinels by coprecipitating two or more metal compounds in a proportion to provide a total of eight positive valences when combined in the oxide form in the spinel crystal lattice. The methods disclosed require coprecipitation of the metals in the hydroxide form or convertible to the hydroxide-oxide form, calcining the coprecipitate, and finally sintering the calcined material at about one-half its melting point or greater, thereby forming a spinel which has a density of greater than 50 percent of the theoretical density of spinel crystal. Also disclosed are techniques for preparing less dense spinels, spinels having more than two metals incorporated into the spinel lattice, as well as a separate oxide phase associated with the spinel crystallites, and slipcasting compositions.
AbstractList Several methods are set forth for preparing polymetallic spinels by coprecipitating two or more metal compounds in a proportion to provide a total of eight positive valences when combined in the oxide form in the spinel crystal lattice. The methods disclosed require coprecipitation of the metals in the hydroxide form or convertible to the hydroxide-oxide form, calcining the coprecipitate, and finally sintering the calcined material at about one-half its melting point or greater, thereby forming a spinel which has a density of greater than 50 percent of the theoretical density of spinel crystal. Also disclosed are techniques for preparing less dense spinels, spinels having more than two metals incorporated into the spinel lattice, as well as a separate oxide phase associated with the spinel crystallites, and slipcasting compositions.
Author WHITWORTH CHARLES ROBERT
HENSLEE WALTER WARREN
LINDSEY JOHN SUTTON
MORROW STANLEY JOSEPH
PERIARD JOHN NEIL
ECKERT WILLIAM MARK
STROTHER GERRENE WALLACE JR
BERTELSMAN DALE MARION
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– fullname: ECKERT WILLIAM MARK
– fullname: BERTELSMAN DALE MARION
– fullname: MORROW STANLEY JOSEPH
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Snippet Several methods are set forth for preparing polymetallic spinels by coprecipitating two or more metal compounds in a proportion to provide a total of eight...
SourceID epo
SourceType Open Access Repository
SubjectTerms ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
COMPOUNDS THEREOF
CONCRETE
INORGANIC CHEMISTRY
LIME, MAGNESIA
METALLURGY
NON-METALLIC ELEMENTS
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
Title COPRECIPITATO DI MG-AI SPINELLO DA ESSO COSTITUITO RELATIVO METODO DI PREPARAZIONE ED OGGETTI DA ESSO PRODOTTI
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