ALUMINA MASS HAVING GOOD MECHANICAL STRENGTH AND METHOD OF MAKING SAME

摘要

P alumina agglomerates with a good mechanical strength, of a particle size is adjustable so that it is adapted to the technical requirements of the user, obtained by compacting of a intermediate product from the decomposition incomplete sulphite of aluminium containing 3% to 15% by weight of s, expressed as so2 corresponding to the formula al2 o3, x so2, yh2 o, followed by granulation of the compacted product, and heat treatment of the granulated product, as well as their preparation process. / p & & p & the alumina agglomerates have a specific surface area of between 2 and 130 m * * 2 / g and may be in various forms, such as granules, spheres, cylinders, solid or hollow, plates, etc, 1 / p