Two dimensions comminution of kaolinite clay particles

Baudet, G.; Perrotel, V; Seron, Alain; Stellatelli, M

doi:10.1016/s0032-5910(99)00127-8

Cited by 28 publications

(19 citation statements)

References 2 publications

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“…chalcopyrite, tetrahedrite, enargite, pentlandite, etc. ), 634,694 Al-oxyhydroxide minerals (gibbsite, boehmite), [701][702][703] alumina, 638,651,699,[704][705][706][707] calcium carbonate, 708 olivine, 636 kaolinite, 635 wollastonite, 645 coal, 709 pigments, 700 bauxite, 710-715a cement 715b and waste materials (slag, red mud). 647,716 Fritsch 704 and Oberacker et al 707 observed that while undergoing wet milling a change of phase composition from a-alumina to an aluminum tri-hydroxide phase can occur.…”

Section: Role Of Water In Mechanochemistrymentioning

confidence: 99%

“…Under impact stress (as in a jet mill), the fragmentation mechanisms included concomitant rupture and breakage, which produce a more uniform-sized product. 701 Baudet et al 635 observed that delamination and transverse breakage occur sequentially during stirred media milling and simultaneously in high-energy kneading in a pug mill. Baláž et al 636 compared the mechanical activation of olivine in attritor and planetary mills.…”

Section: Role Of Water In Mechanochemistrymentioning

confidence: 99%

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Hallmarks of mechanochemistry: from nanoparticles to technology

et al. 2013

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The aim of this review article on recent developments of mechanochemistry (nowadays established as a part of chemistry) is to provide a comprehensive overview of advances achieved in the field of atomistic processes, phase transformations, simple and multicomponent nanosystems and peculiarities of mechanochemical reactions. Industrial aspects with successful penetration into fields like materials engineering, heterogeneous catalysis and extractive metallurgy are also reviewed. The hallmarks of mechanochemistry include influencing reactivity of solids by the presence of solid-state defects, interphases and relaxation phenomena, enabling processes to take place under non-equilibrium conditions, creating a well-crystallized core of nanoparticles with disordered near-surface shell regions and performing simple dry time-convenient one-step syntheses. Underlying these hallmarks are technological consequences like preparing new nanomaterials with the desired properties or producing these materials in a reproducible way with high yield and under simple and easy operating conditions. The last but not least hallmark is enabling work under environmentally friendly and essentially waste-free conditions (822 references).

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Section: Role Of Water In Mechanochemistrymentioning

confidence: 99%

Section: Role Of Water In Mechanochemistrymentioning

confidence: 99%

Hallmarks of mechanochemistry: from nanoparticles to technology

et al. 2013

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“…The literature also abounds with studies of the influence of mechanical processes on the structural and physico-chemical properties of a variety of clay minerals (Suray et al, 1997;Baudet et al, 1999;Sanchez-Soto et al, 2000;Frost et al, 2001;Franco et al, 2004;Dellisanti and Valdré, 2005;Hrachová et al, 2007;Vertuccio et al, 2009). The rapid development of the new, composite claybased materials has advanced the research and processing of fine-milling and reinforcing methods.…”

Section: Introductionmentioning

confidence: 99%

The surface properties of clay minerals modified by intensive dry milling — revisited

Vdović

Jurina

Škapin

et al. 2010

Applied Clay Science

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The present study broadened the research on the effect of the intensive physical disintegration of clay minerals (kaolinite and "Otay" montmorillonite) and mica (ripidolite), carried out by high-energy ball milling (HEBM), on their surface physicochemical characteristics, i.e., the specific surface area (SSA), the cation exchange capacity (CEC), and the electrokinetic properties. The mechanical disintegration of clay minerals occurred in two consecutive processes. Significant changes of the size, morphology and structure were followed by the change of the physico-chemical properties. The decrease of the particle size of the clay minerals resulted in significant increases in the SSA and CEC values, and in the exposure of new, amphoteric surfaces, significantly changing the electrophoretic mobility (EPM).Prolonged milling produced amorphous alumina-silicate aggregates. These solids exhibited the same morphological properties, SSA and CEC, despite the fact that they were formed from initially different clay minerals. In contrast, the electrophoretic mobility of these samples was significantly changed, exemplifying the significance of the initial chemical composition and the formation of different types of surface structures on the physico-chemical processes at amorphous solid-surface-liquid interfaces.

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“…The traditional way to make particle size reduction is by either wet or dry grinding on kaolinite [3][4][5] . This kind of single mechanical treatment not only makes physical disintegration along with the formation of particularly active surfaces of kaolinite, but also causes undesirable effect that the crystal structure of kaolinite is degraded [5] .…”

Section: Introductionmentioning

confidence: 99%

“…This kind of single mechanical treatment not only makes physical disintegration along with the formation of particularly active surfaces of kaolinite, but also causes undesirable effect that the crystal structure of kaolinite is degraded [5] . The situation is that a short time grinding cannot make the delamination effect reach to the nanometer level, but a more marked transverse breakage of kaolinite flakes occurs as the treatment is prolonged [4] . The intercalation reaction has also been used to delaminate kaolinite.…”

Section: Introductionmentioning

confidence: 99%

Highly effective delamination of kaolinite and emergence of a novel nanoclub-like crystal

Yan

Zhang

Zheng

2008

J. Wuhan Univ. Technol.-Mat. Sci. Edit.

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The delamination of kaolinite was performed via the combination of intercalation and sonication. The morphology including shape, size, and crystal structure before and after the treatment were investigated by using XRD, SEM, TEM and SED (selective electron diffraction). The results not only show that the particle size is signifi cantly reduced after short time sonication treatment, such as BET area up to 52.29 m 2 /g after only 1 h sonication treatment, but also indicate that the treated particles keep good crystal structure. A new aluminum silicate nanoclub-like crystal formed after sonication treatment.

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Two dimensions comminution of kaolinite clay particles

Cited by 28 publications

References 2 publications

Hallmarks of mechanochemistry: from nanoparticles to technology

Hallmarks of mechanochemistry: from nanoparticles to technology

The surface properties of clay minerals modified by intensive dry milling — revisited

Highly effective delamination of kaolinite and emergence of a novel nanoclub-like crystal

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