摘要:
The invention relates to a process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties of dispersant, using at least one lithium ion-containing compound, the calcium carbonate material obtained by this process, the use of the calcium carbonate materials in paper, paints and plastics, as well as the use of the lithium ion-containing compounds in the manufacturing process.
摘要:
The invention relates to a process for manufacturing calcium carbonate materials having a particle surface with improved adsorption properties of dispersant, using at least one lithium ion-containing compound, the calcium carbonate material obtained by this process, the use of the calcium carbonate materials in paper, paints and plastics, as well as the use of the lithium ion-containing compounds in the manufacturing process.
摘要:
The invention relates to a process for manufacturing aqueous mineral material suspensions or dried mineral materials using at least one lithium ion neutralised water-soluble organic polymer, the ground mineral materials obtained by this process, the use of the mineral materials in paper, paints and plastics, as well as the use of the lithium ion neutralised water-soluble organic polymer in the manufacturing process as a dispersing and/or grinding enhancer.
摘要:
The invention relates to the use of a weakly ionic and water-soluble copolymer as a grinding aid agent for grinding mineral matter in aqueous suspension in order to obtain aqueous suspensions of refined mineral matter, with a dry matter concentration that can be high, with a low Brookfield™ viscosity that remains stable over time, having the property that it presents a pigmentary surface area the ionic charge of which, as determined by ionic titration, is low.The invention relates to the aqueous suspensions of mineral matter obtained and their use in the fields of paper, paint and plastics.
摘要:
The present invention consists of a process of preparation of at least one mineral matter and/or of at least one pigment, including a calcium carbonate made at once partially organophilic and partially hydrophilic, in which the carbonate is blended and/or ground and/or concentrated in an aqueous medium, in the presence of at least one salt of ethylene acrylic acid, one dispersing agent and/or one grinding aid agent, which is introduced before and/or during this treatment stage.Another object of the invention lies in the aqueous dispersions and suspensions of calcium carbonate thus obtained. They may be dried and the dry pigments obtained also constitute an object of the invention.Use of these aqueous dispersions and these dry pigments in the field of plastic, paints and paper constitutes another object of the invention.
摘要:
The present invention relates to a process for preparing self-binding pigment particles from an aqueous mineral pigment material suspension having a solid content of 45 to 80 wt.-%, based on the total weight of the suspension.
摘要:
The present invention relates to a process for the production of a surface-treated calcium carbonate, the use of this surface-treated calcium carbonate in a process for the control of organic material in an aqueous medium, as well as to a composite of surface-treated calcium carbonate and organic material, such as a composite of surface-treated calcium carbonate and to the use of such a composite.
摘要:
The present invention provides a process for dry grinding one or more mineral materials which include at least calcium carbonate. The process includes a) crushing the mineral material or materials in at least one crushing unit until a crushed material is obtained with a d95 of less than 10 cm, and dry grinding the material in at least one grinding unit (i) in the presence of at least one comb-type hydrophilic polymer containing at least polyalkylene oxide function grafted on to at least one unsaturated ethylene monomer, and (ii) in such a manner that the quantity of liquid in the grinding unit is less than 15% by dry weight of the material crushed in the crushing unit, wherein recovered material has a d50 of 0.5 to 500 microns.
摘要:
The object of the invention consist of a process for the manufacture of aqueous suspensions of calcium carbonate using an acrylic polymer with an average by weight molecular weight of between 8,000 g/mole and 15,000 g/mole and a molar content of less than 20% of polymeric chains of molecular weight less than 3,000 g/mole. It also concerns the aqueous suspensions obtained, possibly dried, and their uses in the paper, paint, plastics and mastics industry.
摘要:
The present invention concerns a method for sizing of mineral matter using a sizing aid additive comprising glycerol and/or at least one polyglycerol allowing the efficiency of air sizing to be increased, or involving a specific sizing energy which is reduced relative to an additive-free air sizing, whilst obtaining a sized mineral matter compatible with an application in an aqueous medium.It also concerns the use of the product obtained in this manner, in paint, plastic, food applications destined for human or animal consumption, pharmaceutical formulation, paper pulp or paper coating.