Results 181 to 190 of about 41,111 (226)

Hydrocyclone performance for bentonite clay purification

Chemical Engineering Research and Design, 2020
Abstract This work evaluates the performance of commercial hydrocyclone for removing contaminant larger particles (silt fraction) in bentonite clays, which improves its commercial value. A steady-state Eulerian–Eulerian 14-phases CFD model was verified with experimental data.
A.J.A Gama, G.A. Neves, P.L. Barros, A.T.P. Neto, J.J.N. Alves   +4 more
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Role of bentonite clays on cell growth

Chemosphere, 2016
Bentonites, naturally occurring clays, are produced industrially because of their adsorbent capacity but little is known about their effects on human health. This manuscript reports on the effect of bentonites on cell growth behaviour. Bentonites collected from India (Bent-India), Hungary (Bent-Hungary), Argentina (Bent-Argentina), and Indonesia (Bent ...
Javiera, Cervini-Silva, María Teresa, Ramírez-Apan, Stephan, Kaufhold, Kristian, Ufer, Eduardo, Palacios, Ascención, Montoya   +5 more
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Sorption of Anthocyanins on Bentonite Clay

Russian Journal of Physical Chemistry A, 2020
Patterns of the static sorption of anthocyanins on bentonite clay are determined. It is found that the approach used for static sorption is an alternative to dynamic solid phase purification on DIAPAK C18 concentrating cartridges. A way of determining the relative sorption capacity of anthocyanins characterized by different structures on bentonite clay
V. I. Deineka, A. G. Doronin, E. Yu. Oleinits, I. P. Blinova, L. A. Deineka, A. N. Chulkov   +5 more
openaire   +1 more source

Diffusion of Water in Bentonite Clay

Journal of the Physical Society of Japan, 2013
Diffusion of water confined in sodium bentonite clay is studied using the quasi-elastic neutron scattering (QENS) technique. Hydration of bentonite clay is characterized by several methods including X-ray diffraction and thermogravimetric measurements.
Reshma R. Dessai, V. K. Sharma, S. A. Prabhudesai, S. Mitra, J. A. E. Desa, R. Mukhopadhyay   +5 more
openaire   +1 more source

Structural Investigations on Processed Bentonite Clays

Transactions of the Indian Ceramic Society, 1982
Two bentonite samples from Gujarat have been investigated for elucidation of their structures and constituents. Physico-chemical analyses and infra-red, X-ray and thermal studies have been carried out, on raw as well as acid treated clay samples, to understand the structural changes on acid treatment of clays. Different degrees of swelling shown by the
A. Datta, J. Mukhopadhyay, A. N. Bhat
openaire   +1 more source

Bentonite Clays for Therapeutic Purposes and Biomaterial Design

Current Pharmaceutical Design, 2020
Background:Bentonite is a natural clay composed mainly of montmorillonite with other associated minerals such as feldspar, calcite and quartz. Owing to its high cation exchange, large surface area and ability to form thixotropic gels with water and to absorb large quantities of gas, it presents a large medicinal application.Objective:This review ...
Ezzeddine Srasra, Imene Bekri-Abbes
openaire   +2 more sources

Bentonites - Clays for Molecular Engineering

Elements, 2009
Smectites are the main components of bentonites; their characteristics define the remarkable range for their uses in industry and technology. Their application depends on their fundamental properties, namely, their atomic structure with a rather flexible crystal lattice, their variable chemical composition, their particle size, and their morphology ...
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Industrial clays: kaolin (china clay), ball clay and bentonite

1995
Kaolin (or china clay), ball clay and bentonite are the dominant ‘industrial clays’, and are mined for a wide variety of uses (Table 3.1), which exploit the special properties of each of the three clay types: Kaolin (china clay) — is chemically inert and can be prepared as a white powder specified (in part) according to its whiteness and ...
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Polymer-treated bentonite clay for chemical-resistant geosynthetic clay liners

Geosynthetics International, 2015
ABSTRACT: The purpose of hydraulic barriers, such as geosynthetic clay liners (GCLs), is to isolate waste liquids from the environment. Bentonite clay is widely used in GCLs because of its elevated sealing capacity in the presence of water and its ability to restrict the migration of solutes (chemico-osmotic efficiency or semi-permeable membrane ...
G. Di Emidio, F. Mazzieri, R.-D. Verastegui-Flores, W. Van Impe, A. Bezuijen   +4 more
openaire   +1 more source

Swell Behavior of Organo Clay and Organo Clay-Bentonite Mixtures

Geo-Congress 2014 Technical Papers, 2014
A conventional mineral lining system with a minimal hydraulic conductivity is usually found to exhibit no appreciable sorption capacity against most of the organic contaminants. The widespread occurrence of organic contaminants demands the use of an innovative barrier system to address this problem. Organic modification of clay minerals by ion exchange
Vandana Sreedharan, P. V. Sivapullaiah
openaire   +1 more source