Results 51 to 60 of about 78,705 (221)

Performance of Cationic Surfactant Modified Sepiolite and Bentonite in Lead Sorption from Aqueous Solutions

open access: yesمجله آب و خاک, 2014
The remediation of soils and water contaminated with heavy metals generate a great need to develop efficient adsorbents for these pollutants. This study reports the sorption of lead (Pb) by bentonite (Bent), and sepiolite (Sep), that were modified with ...
H.R. Rafiei, M. Shirvani, T. Behzad
doaj   +1 more source

Water partitioning and migration in unsaturated bentonites by low‐field NMR characterization

open access: yesVadose Zone Journal, 2023
Water behavior in bentonite clay pores is influenced by soil–water interaction mechanisms such as capillary and adsorptive forces. Quantitative measurement of these water statuses remains challenging, leading to the adoption of advanced techniques.
Ling Peng, Fan Zhang, Yi Dong, Chi Zhang
doaj   +1 more source

Dataset regarding calcium bentonite and sodium bentonite as stabilizers for roads unbound

open access: yesData in Brief, 2022
The collected dataset derives from the laboratory testing of bentonite clay investigated as a stabilization technology for the unbound layers of road pavements.
Diego Maria Barbieri   +6 more
doaj   +1 more source

Comparative evaluation of clays from Abakaliki Formation with commercial bentonite clays for use as drilling mud [PDF]

open access: yes, 2015
The characteristics of clays from Abakaliki Formation, Southeastern Nigeria was evaluated to establish its suitability as drilling mud when compared with commercial bentonite such as Wyoming bentonite.
Nnabo, PN, Igwe, EO, Nweke, OM
core   +1 more source

Three Locally Clays as A Surfaces for Adsorption of Cephalexin Monohydrate From Aqueous Solution: Thermodynamic and Desorption Equilibrium

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2018
    The  adsorption of cephalexin.H2O from aqueous solution on attapulgite, bentonite and kaolin has been studied at the human body temperature (37.5ËšC) and at 5, 27, 47ËšC in 0.1M hydrochloric acid (pH 1.2).
Saja S. Al-Taweel   +2 more
doaj   +1 more source

Ru Nanoparticle Supported by Mesoporous SiOx and Pillared Montmorillonite: Suppressing Catalyst Inhibition in Carbon Dioxide Hydrogenation

open access: yesChemistry – A European Journal, EarlyView.
Ru nanoparticles confined within mesoporous SiOx‐pillared montmorillonite exhibit exceptional performance for CO2 methanation. The catalyst maintains a high reaction rate even at elevated CO2 conversion while preserving high Ru mass–specific activity, overcoming typical inhibition by H2O and CO observed in conventional supported Ru catalysts.
Seunghwan Jung   +4 more
wiley   +1 more source

Study on the Improvement Performance of Different Clay Components with Desulfurization Gypsum-Containing Cementitious Material

open access: yesBuildings
The use of cementitious materials to improve clay is a common technique in engineering. However, the effectiveness of these materials, particularly desulfurized gypsum, on clays with different mineral compositions remains unclear, resulting in a lack of ...
Tingzhu Chen   +6 more
doaj   +1 more source

Water‐based drilling fluids formulated with mature fine tailings

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Mature fine tailings (MFT) are persistent, highly stable colloidal suspensions generated as byproducts of bitumen extraction from oil sands. Given their environmental risks, identifying viable applications for MFT could reduce their accumulation while offsetting natural resource use.
Haichao Li   +2 more
wiley   +1 more source

Caracterização de argilas naturais e ativadas aplicadas na clarificação de óleo de soja [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013No presente trabalho foram selecionados 5 tipos diferentes de argilas (argilas esmectíticas do tipo ...
Patricio, Juliano Selinguer
core  

Bentonites from Boa Vista, Brazil: physical, mineralogical and rheological properties

open access: yesMaterials Research, 2004
The aim of this work is to characterize physically and mineralogically six samples of natural and industrialized bentonites from Paraíba, Brazil, and to study its rheological properties to be used as a components of water based drilling fluids.
Luciana Viana Amorim   +4 more
doaj   +1 more source

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