Alumina agglomerates with good mechanical strength and a method

Details Alumina agglomerates with good mechanical strength and a method Alumina agglomerates with good mechanical strength and a method

1977-07-22

1979-06-26

Garvin, Patrick

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

423626, 423631, 423556, C01F 702

Patent

active

041593138

ABSTRACT:
Alumina agglomerates with high mechanical strength and selectable particle size are obtained by compacting an intermediate product resulting from incomplete decomposition of a substance of the group comprising hexahydrated aluminum chloride, hydrated aluminum nitrate, hydrated aluminum sulfate of the formula Al.sub.2 O.sub.3, xSO.sub.3, yH.sub.2 O and hydrated aluminum sulfite of the formula Al.sub.2 O.sub.3, xSO.sub.2, yH.sub.2 O, which after thermal decomposition contain from 0.5 to 15% by weight of Cl, of nitrogen oxide expressed as N.sub.2 O.sub.5 or of sulfur expressed as SO.sub.3 or SO.sub.2, which compacted product is then granulated and the granulated product subjected to heat treatment.

REFERENCES:
patent: 2006851 (1935-07-01), Wiedbrauck
patent: 3169827 (1965-02-01), De Rosset
patent: 3366446 (1968-01-01), Kelly et al.

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