The dispersant PSIA1 used in ultrafine grinding has a suitable viscosity of the suspension and generates more hydrogen bonds on the particle surface, and sulfonic acid group in the dispersant ...
The invention provides a dispersant used for wet grinding of heavy calcium carbonate and the preparation method thereof. The dispersant is composed of Alpha and Beta-unsaturated carboxylic acid of 80 to 100 parts by weight, and other monomers of 0 to 20 parts by weight, which are polymerized together, and a neutralizing agent in the polymer …
The invention discloses a dispersant used for wet grinding of ultrafine calcium carbonate, and a preparation method and application thereof. The preparation method of the dispersant comprises the following steps of: mixing a reducing agent and a monomer mixture, and heating to 65-75 DEG C; dropwise adding an oxidant solution within 0.5-1 …
Three sodium polyacrylate water-based dispersants, PD01, PD02, and PD03, were prepared by free radical polymerization for wet grinding of the S-ZnF …
Dispersants are chemical substances that serve to stabilize solids/particles (pigments) in a liquid dispersion/suspension. In the coatings industry these are in the …
Wet grinding chemical. Wet grinding is a commonly used process in mineral industry because of its high efficiency and its weak energy consumption. The use of a grinding …
Dispersant PMASH1 used for grinding the pigment particles for 120 min gives an increased product fineness with a narrower particle size distribution. ... Recent work has shown that wet grinding ...
With over 100 years of experience in wet grinding and dispersing, we have unrivaled expertise in plant and machine solutions across all industries, enabling you to create higher quality products with improved production processes at lower cost.
Huang et al. believe that during the wet grinding of particles, ... adding 5wt% dispersant WF211, grinding time is 100min, grinding speed is 2000rpm. Under the same grinding conditions, compared ...
Allwin has engineered and crafted a series of wet grinding machinery, dedicated for producing exceptional blends through advanced grinding and dispersion techniques. Bead Mill Designed for precision …
The use of Dispersant S40 can improve the slurry flowability by decreasing viscosity and eliminating Casson yield stress. It is therefore used as a grinding aid for the wet ultrafine grinding of limestone. The rheological behaviors of ground limestone slurries vary with grinding from a starting dilatant flow-ability to a resulting pseudoplastic ...
Rheology of slurry significantly influenced the grindability, fine grinding performance and energy consumption of industrial minerals in wet grinding. The solid concentration, particle size, temperature and the dispersant, which affected the rheological characteristics of pyrite slurry and the biooxidation process were investigated in this study.
The best experiment condition is using DF with a 5% (by weight) sludge mixing proportion, 1.2% (by weight) dosage of dispersant and 14 min wet-grinding time. The highest C FV values of DF and DX are 53.35% and 53.33% (by weight), while the C FV values of WF and WX are 50.78% and 50.35% (by weight), respectively. According to …
Also, the wet ability is ineffective when using polycarboxylates as a dispersant due to the poor adsorption on particle surface, leading to a decreased grinding efficiency in wet ultrafine grinding [[19], [20], [21]]. Praseodymium-doped zirconium silicate (PZS/Pr-ZrSiO 4) is widely used as a yellow ceramic pigment in ceramic industry [22].
BASF's Solutrix™ dispersants for mineral slurries are effective dispersants and rheology modifiers for calcium carbonate, kaolin and other minerals suspensions. In wet grinding …
The key is not to formulate on a pinhead. In Figure 12, we see that the red curve has the lowest viscosity and is the preferred dispersant, but its curve has a narrower plateau than the green or purple curves. At dispersant concentration 1, the red dispersant is the obvious choice. It uses less dispersant and has the lowest viscosity.
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 …
Small quantities of dispersants can remarkably improve the grinding efficiency, and have been widely used in ultrafine wet grinding processes. The effects …
The wet grinding dispersant for the cement-based building waste slurry is liquid at normal temperature, has good homogeneity and small application mixing amount; the consumption per ton of the cement-based building waste slurry with the water content of 40-80 percent is 1-2.5 kilograms, and the cement-based building waste slurry is dropwise ...
A dispersant for the wet grinding of heavy calcium carbonate which is excellent both in the effect of dispersing the particles used in the process of grinding heavy calcium carbonate (i.e., the process of producing a slurry of finely ground heavy calcium carbonate) and in the stability in the process, namely, a dispersant to be used in the process of …
In light of these drawbacks, Industrial Sonomechanics has developed a flow-through, ultrasonic wet milling process, which employs high-amplitude ultrasound to quickly reduce the size of CaCO 3 particles down to the required d 50 < 3 µm level. This method is directly scalable, has no need for expensive steel or silica media, requires reduced …
the dispersant for the heavy calcium carbonate wet grinding step of the present invention has a high degree of pulverization, a particle dispersing effect and stability in the heavy calcium carbonate wet grinding step (microparticulated heavy 'calcium carbonate slurry production step). Very good. Further, even when the slurry concentration is increased, a …
1. Process for the manufacture of mineral fillers, especially natural calcium carbonates, by wet grinding, whereby 70-80% or more of the particles are < 1 mu m but a maximum of 15% of the particles are < 0.2 mu m, characterised in that the grinding is carried out without dispersant and at a solids concentration of less than 60% by weight, in that the ground …
The general use of chemical grinding aids involving several different mechanisms for increasing throughput in the wet grinding of ores has been discussed in a number of recent publications. It appears from industrial scale testing that the use of selective dispersants with certain prespecified operating conditions is an approach which …
wet grinding component dispersant dispersant component grinding 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 representation as to the accuracy of the status listed.) Expired - Lifetime Application number DE1997617558 Other ...
A water-based dispersant PMASH 1 was synthesized and applied to wet ultrafine grinding. In ultrafine grinding, Dispersant PMASH 1 results in finer particles …
A dispersant for the wet grinding of heavy calcium carbonate which is excellent both in the effect of dispersing the particles used in the process of grinding heavy calcium carbonate (i.e., the process of producing a slurry of finely ground heavy calcium carbonate) and in the stability in the process, namely, a dispersant to be used in the ...
Wet ultra-fine grinding of a limestone powder (< 100 μm) has been investigated in a stirred media mill with respect to the effect of slurry rheology.The grinding results obtained by various parameters (i.e., molecular weight of a dispersant, solids concentration, additive dosage, addition method and beads load) are evaluated in terms …
The products were characterized by Fourier transform infrared (FT-IR) spectroscopy, liquid gel permeation chromatography (GPC) and thermogravimetric analysis (TGA). When the synthetic grinding dispersant was used in the ultrafine wet grinding of GCC, the fluidity of the GCC slurry was remarkably enhanced.
However, homopolymer of macromolecules is usually not a good dispersant, because homopolymer has either a preferable solvation chain or preferable anchor groups, which did not meet the requirements of a good dispersant. ... The grinding aid was used in the ultrafine wet grinding of grinding calcium carbonate (GCC) exhibited a remarkably ...
One of the possible strategies is based on the use of ionic dispersants. However, the ionized state of an ionic dispersant cannot be maintained during the paint drying step ... was applied in a glass plate (20 cm × 10 cm × 0.5 cm) using a 300 μm thickener applier. The film with a wet thickness of 300 μm was left to dry for 24 h in a ...
Effect of amine and glycol-based grinding aids utilization rate on grinding efficiency and rheological properties of cementitious systems. Journal of Building Engineering 2022, 47 …