Process for making a ceramic particulate mixture

• Main Authors: KOSZO, Sandor, MA, Bo Wei, BADRAN, Ahmad
• Format: Patent
• Language: English
• Published: 01.08.2024
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS THEREOF; CONCRETE; INORGANIC CHEMISTRY; LIME, MAGNESIA; METALLURGY; NON-METALLIC ELEMENTS; OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL; PERFORMING OPERATIONS; REFRACTORIES; SEPARATING SOLIDS FROM SOLIDS; SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS; SLAG; SORTING; TRANSPORTING; TREATMENT OF NATURAL STONE

The present invention relates to a non-spray-drying, dry-granulation process for making a ceramic particulate mixture comprising from 4wt% to 9wt% water, wherein at least 90wt% of the particles have a particle size of from 80μm to 600μm, wherein the process comprises the steps of: (a) forming a precursor material; (b) subjecting the precursor material to a compaction step to form a compacted precursor material; (c) subjecting the compacted precursor material to a crushing step to form a crushed precursor material; and (d) subjecting the crushed precursor material to at least two air classification steps, wherein one air classification step removes at least a portion of the particles having a particle size of greater than 600μm from the crushed precursor material, and wherein the other air classification step removes at least a portion of the particles having a particle size of less than 80pm from the crushed precursor material.