| 摘要 |
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 Al2O3, xSO3, yH2O and hydrated aluminum sulfite of the formula Al2O3, xSO2, yH2O, which after thermal decomposition contain from 0.5 to 15% by weight of Cl, of nitrogen oxide expressed as N2O5 or of sulfur expressed as SO3 or SO2, which compacted product is then granulated and the granulated product subjected to heat treatment. |
