Grinding method

• Main Authors: JARVIS NIGEL V, HUSBAND JOHN C, PAYTON CHARLES D, SKUSE DAVID R
• Format: Patent
• Language: English
• Published: 18.05.2006
• Subjects: ADHESIVES; ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS; CONCRETE; CORRECTING FLUIDS; CRUSHING, PULVERISING, OR DISINTEGRATING; CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; DYES; FILLING PASTES; IMPREGNATING OR COATING OF PAPER; INKS; INORGANIC CHEMISTRY; LIME, MAGNESIA; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MILLING GRAIN; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; NATURAL RESINS; PAINTS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; PREPARATION OF CARBON BLACK; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PREPARATORY TREATMENT OF GRAIN FOR MILLING; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; REFRACTORIES; SLAG; TEXTILES; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES; TREATMENT OF NATURAL STONE; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention provides a method of grinding an inorganic particulate material such as calcium carbonate or kaolin in an aqueous suspension, preferably at a solids level below about 50% by weight, wherein the aqueous suspension includes a sub-effective amount of a dispersing agent for the inorganic particulate material.