The effects of soil minerals on chromate (CrVIO42-, noted as Cr(VI)) reduction by sulfide were investigated in the pH range of 7.67 to 9.07 under the anoxic condition. The examined minerals included montmorillonite (Swy-2), illite (IMt-2), kaolinite (KGa-2), aluminum oxide (gamma-Al2O3), titanium oxide (TiO2, P-25, primarily anatase), and silica (SiO2). Based on their effects on Cr(VI) reductio...

The surface area of the individual phyllosilicates (clay minerals) in Athabasca oil sands determined from XRD crystallite size measurements was found to be comparable to the bulk surface area measured by ethylene glycol monoethyl ether adsorption. The primary phyllosilicates are kaolin and illite but the large surface area is imparted by varying degrees of smectitic interstratifications in the ...

quaternary sediments have occupied most of the agricultural and natural resources of urmia region. recognition of physicochemical and mineralogical properties of these soils is essential to optimum and stable use of these lands. in this study, eight soils profiles excavated on quaternary sediments of urmia region were investigated. the results showed that little thickness and evolution of studi...

Effects of oil charge on illite dates and stopping quartz cement: calibration of basin models R. Stuart Haszeldine*, Andrew J. Cavanagh, Gavin L. England Department of Geology and Geophysics, School of GeoSciences, University of Edinburgh, West Mains Road, Edinburgh EH9 3JW,

The uptake of Zn by Illite du Puy (IdP) and two argillaceous rocks, Opalinus Clay (OPA) Boda Claystone (BODA) was investigated. illite studied in 0.1 M NaCl at near-neutral pH loadings varying from 2.1 to 42 mmol/kg. the rock systems carried out 7.2 their respective porewaters 8.0 evaluate influence porewater composition. varied 1.8 86 mmol/kg 1.7 60 for OPA BODA, respectively. simplified “bott...

Abstract Excess bisphenol A (BPA) is a pollutant of concern in different water sources. In this work, magnetic illite clay-composite material (Fe3O4@illite) was synthesized via the coprecipitation method by loading Fe3O4 nanoparticles (nano-Fe3O4) onto surfaces clay. Results from characterizations showed that nano-Fe3O4 embedded into clay nanosheets and existed on clay, thereby reducing degree ...

The micro-nano pore structure of conglomerate in the Lower Karamay Formation Xinjiang Oilfield, Junggar Basin, northern China is characterized to predict its impact on fluid reserves and seepage. Authigenic clay minerals are mainly kaolinite (67%), followed by an illite/smectite mixed layer (18%), illite (10%), chlorite (5%). For kaolinite, throats between 0–200 nm dominant, accounting for 90% ...

In this study, clay and non-clay minerals in the cement of Cretaceous volcanogenic–sedimentary rocks from bottom marginal seas north-western Pacific Ocean adjacent areas were studied. Corrensite mixed-layer chlorite–smectite, rectorite illite–smectite, chlorite, swelling chlorite (?), illite, kaolinite, smectite calcite, ankerite, barite, gypsum, epsomite, zeolites (laumontite, analcime, stilbi...