(PDF) Effects of Grinding Aids Used in Grinding Calcium Carbonate
Grinding aid chemicals which are used in the grinding of calcium carbonate (CaCO3) to prevent agglomeration are chemisorbed on the surfaces of particles, and the compatibility of them with the ...
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PP Calcium Carbonate Compound
Special formula: CaCO3 compound and/or talc compound do not apparently side effect physical property of PE film, sometime the tensile strength of PE film becomes better after adding CaCO3 compound and/or talc compound. Plastic calcium carbonate additive named as CaCO3 filler additive,CaCO3-filled agent,CaCO3 composite,CaCO3 extender,CaCO3 granule.
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Dispersant for heavy calcium carbonate wet grinding process
In the heavy calcium carbonate pulverization step (microparticulated heavy calcium carbonate slurry production step), the dispersant for heavy calcium carbonate wet pulverization step is excellent in the dispersion effect and stability of the particles used. That is, a dispersant used in a step of wet-grinding heavy calcium carbonate having a volume average particle size of Y μm to …
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WO2013095961A1
A process is provided for making a calcium carbonate slurry comprising the steps of (a) forming a mixture comprising water, an acidic dispersant system, and calcium carbonate, (b) grinding said mixture to form a preliminary slurry of particles of said calcium carbonate, wherein 50% or more by weight of said calcium carbonate in said preliminary slurry, based on the total weight of said …
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(PDF) Dispersion, Stabilisation and Casting of Calcium Carbonate
In absence of dispersant, electrophoretic measurement showed a very low surface charge density on calcium carbonate particles that do not allow the preparation of stable suspensions suitable for ...
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DISPERSANTS FOR WET-GRINDING CALCIUM CARBONATE.
Sodium Polyacrylate dispersant, which can be used for pigment dispersing and WGCC grinding. Efficient dispersant for WGCC pre-grinding process. It has higher anionic charge. C60/C65. …
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Detergents and Dispersants
Enhanced future lubricant specifications and new engine hardware require development of innovative dispersant technologies. ... the mineral oil solubility characteristics are poor. However, a process to make a soluble crystalline calcium carbonate detergent was recently published [14]. ... these sulphur oxide compounds interact with oxidized ...
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Masterbatch and compounding
In many plastic manufacturing processes, it is necessary to pre-disperse fillers and additives in a masterbatch or compound. Omya has a wealth of experience in the production of masterbatches and compounds based on calcium carbonate including enhanced white and color masterbatches. Omya is continuously expanding its product portfolio with new developments that make it …
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JPH04334536A
JPH04334536A JP91133565A JP13356591A JPH04334536A JP H04334536 A JPH04334536 A JP H04334536A JP 91133565 A JP91133565 A JP 91133565A JP 13356591 A JP13356591 A JP 13356591A JP H04334536 A JPH04334536 A JP H04334536A Authority JP Japan Prior art keywords dispersant calcium carbonate maleic anhydride pref copolymer Prior art date 1991 …
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The Use of Polymers to Improve Control of Calcium …
phosphorus containing compounds also exhibit some dispersancy activity for suspended matter such as clay, silt, and calcium carbonate. Although there are many phosphonates available, the three most commonly used phosphonates in industrial water …
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EP1585860A2
EP1585860A2 EP04701794A EP04701794A EP1585860A2 EP 1585860 A2 EP1585860 A2 EP 1585860A2 EP 04701794 A EP04701794 A EP 04701794A EP 04701794 A EP04701794 A EP ...
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ACUMER™ 9400 Polymer | Dow Inc.
A polycarboxylate dispersant as high-performance mining polymer. Uses Typically used to disperse and stabilize high solids mineral slurries which include calcium carbonate (pcc, gcc), kaolin clay, talc, titanium dioxide, lime and aluminum hydroxide
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Preparation and property analysis of polyacrylate dispersant …
Two types of dispersants for calcium carbonate were synthesized by condensation polymerization. One was the acrylic homopolymer (Dispersant-A), and the other was …
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Reinforcing polypropylene with calcium carbonate of …
Reinforcing polypropylene with calcium carbonate of different morphologies and polymorphs DOI 10.1515/secm-2015-0307 Received June 30, 2015; accepted February 25, 2017; previously ... Abbreviations Compounds PP/CWs PP and rod-like calcite whiskers PP/AWs PP and rod-like aragonite whiskers PP/CPs PP and granular-calcite particles. Y. Jing et al ...
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EP0946418B1
Japanese Kokai Patent No.: Hei 2-277541 discloses a method of producing calcium carbonate aqueous dispersions whereby a high concentration of at least 60% by weight of calcium carbonate is dispersed in water by using an acrylic dispersant in the presence of non-ionic surfactant.
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CN103025416A
The present invention relates to: a dispersant for calcium carbonate, which can produce a calcium carbonate slurry having a reduced initial viscosity by wet-grinding and can prevent the significant increase in viscosity of the slurry over time; and a process for continuously producing the dispersant. This dispersant for calcium carbonate is produced through a polymerization step …
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WO2004067840A3
In a process for preparing a white pigment mixture suitable for coating paper wherein a cationically bulked kaolin clay pigment is dispersed in water in the presence of an anionic dispersant and mixed with a calcium carbonate pigment, the improvement which comprises using an epichlorohydrin amine complex to bulk said kaolin, and employing as the dispersant the …
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Preparation and property analysis of polyacrylate dispersant …
Furthermore, Dispersant-B and SN5040 are found to be the suitable dispersants for the dispersion of nanometer calcium carbonate. The grinding experiment of 325-mesh calcium carbonate reveals a linear relation between log tgrind and the weight percentage of fine particles, i.e. w (≤2 μm) or w (≤1 μm). Moreover, a power function is well ...
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JP5370360B2
JP5370360B2 - Dispersant for calcium carbonate - Google Patents Dispersant for calcium carbonate Download PDF Info Publication number JP5370360B2 ... dispersant salt alcohol Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no ...
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Calcium Carbonate(CaCO3)
Calcium carbonate is a compound composed of calcium, carbon, and oxygen atoms. Its chemical formula is CaCO 3. It forms a crystalline structure commonly found in rocks, shells, and pearls. This mineral is widely used in various industries, including agriculture, construction, and pharmaceuticals.
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WO2012011368A1
The present invention relates to: a dispersant for calcium carbonate, which can produce a calcium carbonate slurry having a reduced initial viscosity by wet-grinding and can prevent the significant increase in viscosity of the slurry over time; and a process for continuously producing the dispersant. This dispersant for calcium carbonate is produced through a polymerization step …
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KR20020084907A
PURPOSE: A method for preparing a dispersant is provided, to obtain the sodium polyacrylate with an average molecular weight of 2,800-3,800 useful for the production of calcium carbonate slurry. CONSTITUTION: The method comprises the steps of polymerizing acrylic acid in a solvent in the presence of a catalyst to prepare an acryl polymer; and reacting the obtained acryl …
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Stabilization of calcium carbonate slurries
EXAMPLE II 4 kilograms of an aqueous calcitic calcium carbonate slurry containing 75% by weight calcium carbonate and 1% by weight of the previously defined Calgon T dis-. persant was made up in a vessel equipped with a conventional sigma blade mixer by adding calcium carbonate, water and dispersant to the vessel and mixing until an evenly ...
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Synthesis and application of a polyacrylate dispersant on the
The development of coating technology has dramatically increased the demand for ultrafine ground calcium carbonate, which is used especially for top-coating, and the required …
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Dispersants Improve Processing and Filler Loading in …
Dispersants, like Solplus™ D540, enable higher loading of calcium carbonate to function as a cost-effective extender to improve mechanical properties without impacting …
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Dispersing Agent
A dispersant is known as a substance that reduces the cohesive forces between particles of same type. ... Powder binder formulation and compound manufacture in metal injection molding (MIM) ... (above about 1 micron) disperse perfectly, whereas particles smaller than that tended to agglomerate. Nano calcium carbonate with a datasheet particle ...
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WO/2014/189020 DISPERSANT FOR CALCIUM CARBONATE …
This dispersant for calcium carbonate is capable of providing a calcium carbonate slurry, which has a sufficiently low viscosity and good long-term stability, both by wet …
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WO1992000347A1
A method for producing a high solids aqueous slurry of particulate calcium carbonate having highly stable aging characteristics, comprising dispersing in water at at least 70 % by weight solids, a finely divided particulate calcium carbonate, utilizing as a dispersing agent from 20 to 34 lbs/ton of dry mineral (expressed as 40 % actives), of a copolymer of acrylic acid and a …
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Calcium carbonate
Calcium carbonate crystallizes in three anhydrous polymorphs, [12] [13] of which calcite is the thermodynamically most stable at room temperature, aragonite is only slightly less so, and vaterite is the least stable. [14]Crystal structure. The calcite crystal structure is trigonal, with space group R 3 c (No. 167 in the International Tables for Crystallography [15]), and Pearson symbol hR10. …
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Calcium Carbonate Fillers
Calcium carbonate is the chemical compound CaCO 3 and occurs widely in nature. Calcium carbonate fillers are finely divided forms of this chemical and are derived from various mineral sources. As such they usually contain significant levels of other materials, especially magnesium carbonate (MgCO 3) and dolomite (CaCO 3.MgCO 3). They are one of ...
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