Abstract

50 of about 12 microns or less, and a moisture content of about 0.15% by mass or less.

IPC Classes  ?

• C08K 3/26 - CarbonatesBicarbonates
• B02C 17/16 - Mills in which a fixed container houses stirring means tumbling the charge
• B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
• C01F 11/18 - Carbonates
• C08K 9/04 - Ingredients treated with organic substances
• C09C 1/02 - Compounds of alkaline earth metals or magnesium
• B02C 21/00 - Disintegrating plant with or without drying of the material
• B02C 23/12 - Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
• C08J 5/18 - Manufacture of films or sheets
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09J 11/04 - Non-macromolecular additives inorganic

Abstract

Methods for preparing and compositions including untreated and surface-treated alkaline earth metal carbonate particulates are described. For example, a method for processing alkaline earth metal carbonate may include introducing alkaline earth metal carbonate into a stirred media mill, and dry grinding the alkaline earth metal carbonate in the stirred media mill to produce an untreated alkaline earth metal carbonate particulate having certain characteristics. In some examples, the method may include introducing carboxylic acid and/or carboxylic acid salt into the stirred media mill, and dry grinding the alkaline earth metal carbonate and the carboxylic acid and/or carboxylic acid salt in an integrated dry grinding and surface-treating process in the stirred media mill to produce a surface-treated alkaline earth metal carbonate particulate. In some examples, heating may be added during the dry grinding process.

IPC Classes  ?

• C08K 3/26 - CarbonatesBicarbonates
• B02C 17/16 - Mills in which a fixed container houses stirring means tumbling the charge
• B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
• B02C 21/00 - Disintegrating plant with or without drying of the material
• B02C 23/12 - Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
• C01F 11/18 - Carbonates
• C08J 5/18 - Manufacture of films or sheets
• C08K 9/04 - Ingredients treated with organic substances
• C09C 1/02 - Compounds of alkaline earth metals or magnesium
• C09D 11/037 - Printing inks characterised by features other than the chemical nature of the binder characterised by the pigment
• C09J 11/04 - Non-macromolecular additives inorganic

Abstract

Methods for reducing moisture content of alkaline earth metal carbonate may include introducing alkaline earth metal carbonate having a moisture content ranging from about 0.1% by mass to about 10% by mass into a primary crusher and operating the primary crusher to obtain alkaline earth metal carbonate particles having a top cut particle size d90 of 90 microns or less. The method may also include introducing the particles into a primary grinder and operating the primary grinder to obtain reduced-size alkaline earth metal carbonate particles having a median particle size d50 of about 60 microns or less. The method may further include introducing the reduced-size particles into a classifier mill and operating the classifier mill to obtain further-reduced-size alkaline earth metal carbonate particles having a median particle size d50 of about 12 microns or less, and a moisture content of about 0.15% by mass or less.

IPC Classes  ?

• B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
• C01B 32/60 - Preparation of carbonates or bicarbonates in general
• C01F 11/18 - Carbonates
• C08K 3/26 - CarbonatesBicarbonates
• C08K 9/00 - Use of pretreated ingredients
• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
• C08L 27/06 - Homopolymers or copolymers of vinyl chloride
• C08L 75/04 - Polyurethanes

Abstract

Methods for preparing and compositions including untreated and surface-treated alkaline earth metal carbonate particulates are described. For example, a method for processing alkaline earth metal carbonate may include introducing alkaline earth metal carbonate into a stirred media mill, and dry grinding the alkaline earth metal carbonate in the stirred media mill to produce an untreated alkaline earth metal carbonate particulate having certain characteristics. In some examples, the method may include introducing carboxylic acid and/or carboxylic acid salt into the stirred media mill, and dry grinding the alkaline earth metal carbonate and the carboxylic acid and/or carboxylic acid salt in an integrated dry grinding and surface-treating process in the stirred media mill to produce a surface-treated alkaline earth metal carbonate particulate. In some examples, heating may be added during the dry grinding process.

IPC Classes  ?

• B01F 23/60 - Mixing solids with solids
• B02C 17/16 - Mills in which a fixed container houses stirring means tumbling the charge
• B02C 23/12 - Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone with return of oversize material to crushing or disintegrating zone
• C01B 32/60 - Preparation of carbonates or bicarbonates in general
• C01F 11/18 - Carbonates
• C08K 3/26 - CarbonatesBicarbonates
• C08K 9/04 - Ingredients treated with organic substances
• C09C 1/02 - Compounds of alkaline earth metals or magnesium
• C09C 3/04 - Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
• C09C 3/08 - Treatment with low-molecular-weight organic compounds

Goods & Services

Calcium carbonate

Goods & Services

Calcium carbonate

Goods & Services

Calcium carbonate