Visible and near-infrared spectroscopic comparison of five
Five phyllosilicate mineral samples, including pyrophyllite (Prl), muscovite (Ms), talc (Tlc), antigorite (Atg) and kaolinite (Kln), were selected for this study (Table 1).From each mineral sample (which weighed about 1–2 kg) a section was cut with the dimensions 10 × 10 × 8 cm and stored immediately in a plastic bag to minimize …
A preliminary rheological classification of phyllosilicate group minerals
Such information has not been clearly defined for each phyllosilicate mineral. A better fundamental understanding, particularly of the rheological properties of the different phyllosilicates is required for long-term solutions to these processing problems. 1.1. Rheology in the mineral processing industry
Influence of clays on the rheology of cement pastes
Rheological Behavior of Fresh Cement Pastes. F. Rubio-Hernández. Materials Science, Engineering. Fluids. 2018. Rheology of a concrete is mainly controlled by the rheological behavior of its cement paste. This is the main practical reason for the extensive research activity observed during 70 years in this…. Expand. 40.
A preliminary rheological classification of phyllosilicate group minerals
This categorises the minerals into serpentinite, talc/pyrophillite, mica, chlorite and clay mineral groups as shown in Fig. 1. The clay minerals can be further classified into non-swelling (kaolinites and illites), and swelling clays (smectites and vermiculites). The rheological properties of suspensions of pure chrysotile (serpentine group ...
The influence of phyllosilicate mineralogy on the rheology of mineral
The influence of phyllosilicate mineralogy on the rheology of mineral slurries. Authors. Bulelwa Ndlovu; Megan Becker + 3 moreElizaveta Forbes; David Deglon; Jean-Paul Franzidis; Publication date 1 October 2011. Publisher 'Elsevier BV' Doi. Cite.
The influence of phyllosilicate mineralogy on the rheology of …
A comparison of the rheology (yield stress and viscosity) of vermiculite and muscovite suspensions relative to other phyllosilicate minerals. Effect of surface charge and …
The effect of phyllosilicate mineralogy and surface charge …
The effect of phyllosilicate mineralogy and surface charge on the rheology of mineral slurries
The effect of mineralogy and effective normal stress on …
DOI: 10.1016/J.JSG.2012.06.015 Corpus ID: 129103823; The effect of mineralogy and effective normal stress on frictional strength of sheet silicates @article{Behnsen2012TheEO, title={The effect of mineralogy and effective normal stress on frictional strength of sheet silicates}, author={Julia G. Behnsen and Daniel R. …
The influence of phyllosilicate mineralogy on the rheology of …
The influence of phyllosilicate mineralogy on the rheology of mineral slurries. October 2011. Minerals Engineering 24 (12):1314-1322. DOI: …
The influence of phyllosilicate mineralogy on the rheology of mineral
hyllosilicate minerals have been shown to present some rheological challenges during ore beneficiation, with difficulties such as reduced flotation rates and complex tailings treatment arising. This study focuses on two phyllosilicate minerals which commonly exist as major gangue components in many industrial ores: muscovite with its …
A preliminary rheological classification of phyllosilicate …
The influence of phyllosilicate mineralogy on the rheology of mineral slurries B. Ndlovu M. Becker E. Forbes D. Deglon J. Franzidis Materials Science, Chemistry
Pharmaceutical grade phyllosilicate dispersions: the influence …
The effect of mixing conditions on the flow curves of some clay–water dispersions was studied. Two Spanish fibrous phyllosilicates (sepiolite from Vicálvaro and palygorskite from Turón) and a commercial bentonite (Bentopharm ©, UK) were selected as model clays.The disperse systems were made up using a rotor-stator mixer working at …
Influence of phyllosilicate mineral assemblages, fabrics, …
However, microstructural observations show that many of the changes in mineral assemblages occurred after the cessation of faulting. Moreover, measures of phyllosilicate fabrics across the Punchbowl fault from X-ray goniometry are uniformly weak, and so phyllosilicate-induced permeability anisotropy in the zone was small.
Slurry rheology influence on the performance of mineral/coal grinding
The programme was aimed at developing a better understanding of the influence of slurry rheology on the performance of mineral and coal grinding circuits. Part 1 presents the basic concepts identified, including typical laboratory results showing the influence on grinding behaviour of controlled changes in per cent solids, particle size, slurry ...
Significance of phyllosilicate mineralogy and mineral …
Phyllosilicate mineralogy is key to understanding hydrothermal processes within accepted epithermal deposit models but little information has been published about the mineral chemistry of epithermal deposits. X-ray diffraction, optical and electronic microscopy (scanning and transmitted), electron microprobe, and Fourier transform …
Phyllosilicate
Phyllosilicates are the most common class of soil minerals. Also known as layer silicates, these minerals consist of (i) Al in octahedral coordination with O (H) that are bound to (ii) one (1:1) or two (2:1) sheets of Si in tetrahedral coordination with O. The sensitivity of IR absorbance to these bond types, their coordination, and other ...
Quantifying the contribution of phyllosilicate mineralogy …
For phyllosilicate mineralogy, vermiculite had the largest explanatory power in aggregate stability (R 2 = 54%, p < 0.001), followed by kaolilite and 1.4 nm intergrade mineral (R 2 = 28 ~ 32%, p < 0.01), while illite explained little variance (R 2 = 6%, p > 0.05), demonstrating the more prominent role of phyllosilicate mineralogy than other ...
(PDF) The influence of phyllosilicate mineralogy on the rheology …
The influence of phyllosilicate mineralogy on the rheology of mineral slurries
The effect of phyllosilicate mineralogy and surface charge …
Phyllosilicate minerals exist as common gangue components in many low grade ores. Often broadly classified as 'clays', this group of minerals is closely associated with several processing issues. Despite many good studies on the physico-chemical properties of phyllosilicates, there still remains a poor understanding of their suspension flow behaviour.
A rheological investigation of the behaviour of two Southern …
Little, however, is known about the rheology of other (non-phyllosilicate) minerals, specifically orthopyroxene (inosilicate), plagioclase (tectosilicate) and chromite (oxide) which are the major gangue constituents of UG2 ore. ... The influence of phyllosilicate mineralogy on the rheology of mineral slurries. Minerals Engineering, …
The influence of phyllosilicate mineralogy on the rheology of …
The rheology of the phyllosilicate minerals is evaluated against the rheology of a non-phyllosilicate mineral quartz which has a simple and regular …
The importance of rheology in mineral flotation: A review
The detrimental influence of gangue minerals on the rheology and yield of smithsonite was kaolinite > calcite > quartz. ... Due to the anisotropic surface charge on talc and other phyllosilicate ...
The importance of rheology in mineral flotation: A review
The pathways by which the rheology influences the flotation performance are not yet fully understood. These pathways may include various mechanisms occurring in the pulp and froth phases. However to date, little work has been done on froth rheology. ... The influence of phyllosilicate mineralogy on the rheology of mineral slurries. …
Structure, Crystal Chemistry, and Origin of the Phyllosilicate Minerals …
Clay minerals belong to the family of phyllosilicates and contain continuous two-dimensional tetrahedral sheets of composition T 2 O 5 (T = Si, Al, Fe 3 +,...) with tetrahedra linked by sharing three corners of each with a further corner pointing in any direction.The tetrahedral sheets are linked in the unit structure to octahedral sheets and to groups of …
The effect of phyllosilicate minerals on mineral
The critical effect of phyllosilicate minerals in mineral processing and in particular in flotation performance is a well-known fact (Ndlovu et al., 2013). Phyllosilicate minerals are responsible ...
Megan Becker
The influence of phyllosilicate mineralogy on the rheology of mineral slurries. B Ndlovu, M Becker, E Forbes, D Deglon, JP Franzidis. Minerals engineering 24 (12), 1314-1322, 2011. 109: 2011: A preliminary rheological …
The influence of phyllosilicate mineralogy on the rheology of …
The aim of this work is to investigate the effects of mineralogy on the rheology of muscovite and vermiculite slurries. In this study, the mineralogy is defined …
The effects of chrysotile mineralogical properties on the rheology …
The influence of phyllosilicate mineralogy on the rheology of mineral slurries. B. Ndlovu M. Becker E. Forbes D. Deglon J. Franzidis. Materials Science, Chemistry. 2011; 85. Highly Influenced ... Abstract The rheology of mineral suspensions is highly dependent on the relationship between the mineral surface properties and inter-particle ...
The effect of phyllosilicate minerals on mineral processing industry
Phyllosilicates have potential to significantly affect mineral processing operation. •. Understanding ore geology and mineralogy is critical to optimise its beneficiation. •. The presence of phyllosilicates influences the processing plant design. •. More research on the effect of phyllosilicates on mineral processing is required.
The Structure Property of Clay Minerals and Their Effects on …
Clay minerals are phyllosilicate minerals, with kaolinite and montmorillonite as two typical common gangue minerals, which are the major challenges in the flotation of low-grade minerals. ... The influence of phyllosilicate mineralogy on the rheology of mineral slurries[J]. Minerals Engineering, 2011, 24(12):1314-1322. doi: 10.1016/j.mineng ...
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