Method of preparing hardened granules from a particulate material.

摘要

Invention Patent: B "METHOD OF PREPARING HARDENED GRANULES FROM A PARTICLE-SHAPED MATERIAL" D. A method for preparing hardened granules from a particulate material that comprises mixing the particulate material with an aqueous inorganic binder, converting the resulting wet mixture into granules and hardening such granules, characterized by the fact that comprises the steps of: (i) selecting a particulate material comprising appropriate ingredients as a raw material or an agent in a selected chemical or physical process; (ii) where applicable, bring the particulate material into an appropriate particle size distribution for aggregation into granules; (iii) composition and mixing of a mixture comprising: the particulate material; an aqueous inorganic binder selected from the group consisting of a limestone binder, cement binder, hydraulic cement, Portland cement, high aluminum cement, a mixture of a calcium hydroxide source with a source of silica, lime, plaster and dolomite ; causing a moisture content so that a granulable mixture is obtained; (iv) granule formation; (v) hardening of such granules at a temperature above room temperature and below the boiling temperature of moisture while avoiding the agglutination of the granules and, where applicable, excess moisture from the granules is extracted; (vi) removing the hardened granules as a component of the feed stock for said selected process.