Preparation of granulated alkaline earth metal carbonate
AssigneeSolvay Barium Strontium GmbH
InventorsJacopo Porta, Guido Riccioli, Pierino Trifoni, Christian Schiffling
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Abstract
A method for preparing granulated alkaline earth metal carbonate, especially barium carbonate and strontium carbonate, by adding a binding agent and optionally water, and granulating the carbonate material by the action of mechanical forces or by accretional granulation in, for example, a flash reactor, with simultaneous drying, and thereafter optionally subjecting the granules to a high-temperature treatment, in which method the material to be granulated and the granulated material do not come in contact with inorganic refractory material either during the granulation or during any subsequent high-temperature treatment.
Claims9
A method for preparing a granulated carbonate comprising simultaneously heating and shaping a carbonate material to be granulated into granules, wherein said carbonate is calcium carbonate, barium carbonate or strontium carbonate, and the granulation is performed in a flash reactor and in the presence of a binding agent additive, and the shaping is performed either by the action of mechanical forces or as granulation by accretion, and wherein the carbonate material to be granulated and the resulting granulated carbonate material are maintained free of contact with inorganic refractory material.
Dependencies are inferred from the claim text.