Abstract

Described herein are technologies for concentrating rare-earth elements from a heavy fraction of grit in gangue produced in kaolin mining. In some examples, grit is separated as a non-clay fraction of gangue produced in a kaolin mining operation. The grit is separated into a heavy mineral grit sub-fraction and a light mineral grit sub-fraction. Rare-earth elements, particularly heavy rare-earth elements, are thereafter extracted from the heavy mineral grit sub-fraction using various extraction technologies.

IPC Classes  ?

• B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
• B03B 5/30 - Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
• C22B 1/00 - Preliminary treatment of ores or scrap
• C22B 59/00 - Obtaining rare earth metals

Abstract

Described herein are technologies for concentrating rare-earth elements from a heavy fraction of grit in gangue produced in kaolin mining. In some examples, grit is separated as a non-clay fraction of gangue produced in a kaolin mining operation. The grit is separated into a heavy mineral grit sub-fraction and a light mineral grit sub-fraction. Rare-earth elements, particularly heavy rare-earth elements, are thereafter extracted from the heavy mineral grit sub-fraction using various extraction technologies.

IPC Classes  ?

• B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
• C22B 59/00 - Obtaining rare earth metals
• C22B 1/00 - Preliminary treatment of ores or scrap
• B03B 5/30 - Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions

Abstract

Removal of stickies from waste paper and paperboard is obtained with the use of a modified kaolin-based stickies removal composition. The modified kaolin-based stickies removal composition is produced by modifying the kaolin clay, separating the modified kaolin clay from the non-reactive kaolin clay, and then adding a nonionic surfactant to the modified kaolin-based particles. Removal of stickies is improved by the use of this modified kaolin-based stickies removal composition during the recycling of the waste paper and paperboard.

IPC Classes  ?

• D21H 21/02 - Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control
• D21C 5/02 - Working-up waste paper
• D21J 1/00 - Fibreboard
• D21H 11/14 - Secondary fibres
• D21C 9/08 - Removal of fats, resins, pitch, or waxes

Abstract

Removal of stickies from waste paper and paperboard is obtained with the use of a modified kaolin-based stickies removal composition. The modified kaolin-based stickies removal composition is produced by modifying the kaolin clay, separating the modified kaolin clay from the non-reactive kaolin clay, and then adding a nonionic surfactant to the modified kaolin-based particles. Removal of stickies is improved by the use of this modified kaolin-based stickies removal composition during the recycling of the waste paper and paperboard.

IPC Classes  ?

• D21C 9/08 - Removal of fats, resins, pitch, or waxes
• D21H 21/02 - Agents for preventing deposition on the paper mill equipment, e.g. pitch or slime control

Goods & Services

kaolin, calcined kaolin

Goods & Services

kaolin, waterwashed kaolin

Goods & Services

kaolin, waterwashed kaolin

Abstract

Described herein are technologies for concentrating rare-earth elements from a heavy fraction of grit in gangue produced in kaolin mining. In some examples, grit is separated as a non-clay fraction of gangue produced in a kaolin mining operation. The grit is separated into a heavy mineral grit sub-fraction and a light mineral grit sub-fraction. Rare-earth elements, particularly heavy rare-earth elements, are thereafter extracted from the heavy mineral grit sub-fraction using various extraction technologies.

IPC Classes  ?

• C22B 59/00 - Obtaining rare earth metals
• B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
• C22B 3/04 - Extraction of metal compounds from ores or concentrates by wet processes by leaching
• C22B 1/06 - Sulfating roasting

Abstract

Composite pigments are provided which comprise a mineral pigment (such as kaolin clay, titanium dioxide, talc, mica or a mixture of two or more of these mineral pigments) and calcium carbonate precipitated in-situ on the surfaces of the particles of the mineral pigment.

IPC Classes  ?

• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers ; Preparation of carbon black
• C09C 1/40 - Compounds of aluminium
• C09C 1/02 - Compounds of alkaline earth metals or magnesium
• C09C 1/36 - Compounds of titanium

Abstract

Composite pigments are provided which comprise a mineral pigment (such as kaolin clay, titanium dioxide, talc, mica or a mixture of two or more of these mineral pigments) and calcium carbonate precipitated in-situ on the surfaces of the particles of the mineral pigment.

IPC Classes  ?

• C09C 1/02 - Compounds of alkaline earth metals or magnesium
• C09C 1/00 - Treatment of specific inorganic materials other than fibrous fillers ; Preparation of carbon black
• C09C 1/40 - Compounds of aluminium
• C09C 1/36 - Compounds of titanium

Abstract

Fluffy powders, such as calcined kaolin clays or air floated clays, can be compacted using a process which comprises applying increasing amounts of pressure to a powder moving through a confinement area. The compacted product has an improved bulk density and improved wet out and slurry incorporation times as compared to the non-compacted starting material feed.

IPC Classes  ?

• B01J 19/00 - Chemical, physical or physico-chemical processes in general; Their relevant apparatus

Abstract

Deinking of waste paper is obtained with the use of a hydrophobic kaolin-based deinking composition. The hydrophobic kaolin-based deinking composition is produced by hydrophobizing the kaolin clay and then blending the hydrophobic kaolin-based particles with a deinking surfactant. Separation and removal of ink is achieved either by washing deinking, flotation deinking or combination of these methods.

IPC Classes  ?

• D21B 1/08 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being rags

Goods & Services

Kaolin-based compound for use in de-inking paper

Abstract

Mineral pigments (such as kaolin clay) having a high surface area and particle size in the nano scale range are provided which are useful in paper coating and filling, ink jet coating formulations, paint compositions, and as a filler in rubbers, plastics and polymers. These pigments are manufactured by intensive wet milling of a mineral composition which may have undergone prior dry grinding and then optionally subjecting the wet milled mineral composition to an acid treatment.

IPC Classes  ?

• C09C 3/04 - Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
• C09C 3/06 - Treatment with inorganic compounds
• B82B 3/00 - Manufacture or treatment of nanostructures by manipulation of individual atoms or molecules, or limited collections of atoms or molecules as discrete units

Abstract

Mineral pigments (such as kaolin clay) having a high surface area and particle size in the nano scale range are provided which are useful in paper coating and filling, ink jet coating formulations, paint compositions, and as a filler in rubbers, plastics and polymers. These pigments are manufactured by intensive wet milling of a mineral composition which may have undergone prior dry grinding and then optionally subjecting the wet milled mineral composition to an acid treatment.

IPC Classes  ?

• B02C 19/00 - Other disintegrating devices or methods

Abstract

Fluffy powders, such as calcined kaolin clays or air floated clays, can be compacted using a process which comprises applying increasing amounts of pressure to a powder moving through a confinement area. The compacted product has an improved bulk density and improved wet out and slurry incorporation times as compared to the non-compacted starting material feed.

IPC Classes  ?

• C05B 19/00 - Granulation or pelletisation of phosphatic fertilisers other than slag

Abstract

Fluffy powders, such as calcined kaolin clays or air floated clays, can be compacted using a process which comprises applying increasing amounts of pressure to a powder moving through a confinement area. The compacted product has an improved bulk density and improved wet out and slurry incorporation times as compared to the non-compacted starting material feed.

IPC Classes  ?

• B30B 11/22 - Extrusion presses; Dies therefor
• B30B 15/02 - Dies; Inserts therefor or mountings thereof; Moulds

Abstract

Kaolin clay pigments which contain a minor amount of gypsum provide improved properties of brightness, opacity and bulking to coated sheets.

IPC Classes  ?

• C09C 1/28 - Compounds of silicon
• C09C 1/40 - Compounds of aluminium

Abstract

Waste paper can be deinked by use of a composition which comprises a surfactant and a mineral-based deinking component.

IPC Classes  ?

• D21C 5/02 - Working-up waste paper

Abstract

Waste paper is deinked by a composition which comprises a surfactant and a hydrophobic-based deinking component.

IPC Classes  ?

• D21B 1/08 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being rags

Goods & Services

Calcined kaolin clay

Goods & Services

Waterwashed Coating Clay for Industrial Use

Goods & Services

Air Floated or Water Processed Fillers (Clay) for the Paper Industry

Goods & Services

Air Floated Filler (Clay), Highly Refined for the Adhesive, Rubber, Plastic, and Pharmaceutical Industries

Goods & Services

WATERWASHED COATING CLAY

Goods & Services

WATERWASHED COATING CLAY

Goods & Services

WATERWASHED FILLER CLAY

Goods & Services

WATERWASHED FRACTURED CLAY