Results 41 to 50 of about 3,477 (195)
Mesoporous Materials Produced from Novel Trioctahedral Ni-Smectite
Journal of the Ceramic Society of Japan, 1992 Novel trioctahedral Ni-smectites were synthesized hydrothermally from Ni-Si hydrous oxide at 125°-300°C under autogeneous water vapour pressure for 2h. With increasing temperature of hydrothermal reaction, adsorption of methylene blue (MB) increased from 0.20meq⋅g-1 to 0.76meq⋅g-1 between 125° and 175°C, but gradually decreased from 0.76meq⋅g-1 to 0 ...
Kazuo TORII +3 more
openaire +2 more sources
Scientific Reports, 2017 The paleoclimate during the Early Eocene in Maritime Antarctica is characterized by cool conditions without a pronounced dry season. Soils formed on volcanic material under such climate conditions in modern analogue environments are usually Andosols rich
Diogo Noses Spinola +6 more
doaj +1 more source
Revista Brasileira de Ciência do Solo, 2018 Studies of heavy metals are concentrate on clay fractions, but coarser fractions of the soil can constitute significant sources of structural forms of heavy metals.
Araína Hulmnn Batista +3 more
doaj +1 more source
Hydrothermal synthesis and characterization of dioctahedral smectites: A montmorillonites series [PDF]
, 2008 International audienceThe aim of this study is to synthesize and finely characterize montmorillonite samples, dioctahedral smectites without tetrahedral charges (structural formulae Nax(Al(2 − x)Mgx)Si4O10(OH)2), to allow their use as reference samples ...
Bény, Jean-Michel +3 more
core +3 more sources
Comprehensive physicochemical study of dioctahedral palygorskite-rich clay from Marrakech High Atlas (Morocco) [PDF]
, 2013 This study is devoted to the physicochemical and mineralogical characterizations of palygorskite from Marrakech High Atlas, Morocco. The raw clay and its Na?-saturated\ 2 lm fraction were characterized using chemical, structural, and thermal analytical ...
Amjoud, M'barek +10 more
core +4 more sources
Journal of Petroleum Geology, EarlyView.ABSTRACT The Lower Cretaceous Yamama Formation of southern Iraq represents a key carbonate reservoir within Iraq and the Middle East, yet its complex depositional facies architecture and diagenetic alterations present challenges for predicting reservoir quality.
A. K. A. Mohammed +8 more
wiley +1 more source
Journal of Chemistry, 2018 The lateritic soils collected from a tea garden were used to explore the regeneration process using different O2 contents for high-temperature desulfurization. The desulfurization and regeneration experiments were carried out using a fixed-bed reactor at
Tzu-Hsing Ko, Chen-Yao Chu
doaj +1 more source
Бюллетень Почвенного института им. В.В. Докучаева, 2018 Mineralogical composition of different texture fractions of Solonetz (Calcic Gypsic Endosalic Solonetz (Columnic Cutanic differentic) was studied.
E. B. Varlamov +3 more
doaj +1 more source
Effect of filler content, size, aspect ratio and morphology on thermal, morphological and permeability properties of porous talc filled—Polypropylene obtained through MEAUS process [PDF]
, 2018 Several commercial grades of talc were selected to develop polypropylene based microporous membranes through MEAUS process (melt extrusion—annealing—uniaxial strain).
Arencón Osuna, David +3 more
core +2 more sources
Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.Abstract Extensive research over the past two decades has shown that early Mars likely had a warmer, wetter climate with widespread water activity. Ferromagnesian (Fe,Mg‐rich) clay deposits are compelling markers of these ancient environments, helping reconstruct Mars' hydrologic evolution, assess past habitability, and guide future exploration.
Jeremy Brossier +8 more
wiley +1 more source