• Nenhum resultado encontrado

Clay - Analysis

Adsorption of methylene blue on clay minerals particles: analysis of the clay particle sizes.

Adsorption of methylene blue on clay minerals particles: analysis of the clay particle sizes.

... ON CLAY MINERALS PARTICLES: ANALYSIS OF THE CLAY PARTICLE ...with clay particles in aqueous suspension have been extensively ...the clay modiies signiicantly the particle sizes ...

5

Numerical Analysis of the Excavation of a Shaft in London Clay

Numerical Analysis of the Excavation of a Shaft in London Clay

... numerical analysis of a circular shaft recently built in London that crosses a thick London Clay ...London Clay, study of circular shafts phenomenology, construction methods and design, and thorough ...

179

Study of selection and purification of brazilian bentonite clay by elutriation: a XRF, SEM and rietveld analysis

Study of selection and purification of brazilian bentonite clay by elutriation: a XRF, SEM and rietveld analysis

... bentonite clay extracted from a mine in Vitória da Conquista - Bahia / ...by analysis of X-ray diffraction, X-ray fluorescence and scanning electron ...

10

Thermal Analysis: A Complementary Method to Study the Shurijeh Clay Minerals

Thermal Analysis: A Complementary Method to Study the Shurijeh Clay Minerals

... thermal analysis including differential thermal analysis (DTA), and thermogravimetric analysis (TGA) techniques were utilized in the characterization of the Shurijeh clay minerals in ten ...

13

Clay slurries analysis using inductively coupled plasma optical emission spectrometry with axial view configuration.

Clay slurries analysis using inductively coupled plasma optical emission spectrometry with axial view configuration.

... SLURRIES ANALYSIS USING INDUCTIVELY COUPLED PLASMA OPTICAL EMISSION SPECTROMETRY WITH AXIAL VIEW ...of clay slurries in an inductively coupled plasma optical emission spectrometer with axial view ...

3

Determination of the numerical parameters of a continuous damage model for the structural analysis of clay brick masonry

Determination of the numerical parameters of a continuous damage model for the structural analysis of clay brick masonry

... Models based on the continuous damage theory present good responses in representing the nonlinear behavior of reinforced concrete structures with loss of strength and stiffness of the material. However, damage theory is ...

9

Adsorption and pre-adsorption for the detailed characterisation of clay catalysts

Adsorption and pre-adsorption for the detailed characterisation of clay catalysts

... Ion exchange and acid activation are easy and appropriate modification treatments for obtaining versatile clay derived catalysts which can be tailored for a precise reaction of interest. Depending on the specific ...

9

Effect of Resin on the Strength Characteristics of Thonnakkal Clay

Effect of Resin on the Strength Characteristics of Thonnakkal Clay

... Anagnostopoulos(2012) studied experiments were conducted using resins with different epoxy resin-to-water (ER/W) ratios. The results indicate that the epoxy resins improve the physical and mechanical properties of sand ...

3

Synthesis of polyurethane/clay nanocomposites based palm oil polyol coating

Synthesis of polyurethane/clay nanocomposites based palm oil polyol coating

... Iodine palm oil oleic acid 56.72 g I2 / 100 g decreased from 54.29 I2 to 100 g, and oksirana numbers increased from 0.64% to 7.12%. The decrease in number of the iodine identified the oxidation processes of bonding ...

7

Potential of Spectroradiometry to Classify Soil Clay Content

Potential of Spectroradiometry to Classify Soil Clay Content

... The minimum Kappa index in this study was 0.64 for the calibration set and the maximum value 0.67 for the validation set. The Kappa index is defined as a measure of association to describe and test the degree of ...

8

Properties of Extruded Xanthan-Starch-Clay Nanocomposite Films

Properties of Extruded Xanthan-Starch-Clay Nanocomposite Films

... FT-IR analysis of the films were performed to identify the potential interactions between the starch, xanthan, nanoclays and glycerol. Infrared spectra of the film samples are shown in Figure 4. All the spectra ...

12

Hydration-Induced Local Molecular Structures in Nano-Layered Clay Particles

Hydration-Induced Local Molecular Structures in Nano-Layered Clay Particles

... thermal analysis (TG-DTA) were conducted for synthetic smectite clay minerals to investigate local molecular structures i n- duced by water adsorption and ...

3

Caracterização de argilas plásticas do tipo "ball clay" do litoral paraibano.

Caracterização de argilas plásticas do tipo "ball clay" do litoral paraibano.

... Deposits of high quality ball clays are not common. They are mainly located in the United States and in the United Kingdom. Ball clays are used in several industries, from the ceramic industry to the cosmetic one. Thus, ...

8

Pillaring of bentonite clay with Al and Co

Pillaring of bentonite clay with Al and Co

... This work describes the synthesis and characterization of mixed Al/Co pillared clays. The materials were prepared using different Co concentrations: 10%, 25%, 50%, 75% and 100%. The samples were analyzed by XRD, N2 ...

8

METODOLOGY FOR LATERÍTICS CU-BEARING CLAY MINERALS CHARACTERIZATION

METODOLOGY FOR LATERÍTICS CU-BEARING CLAY MINERALS CHARACTERIZATION

... Finally, EDS analysis showed that the element Cu is specially associated to micas and secondarily to smectite. Ildefonse et al. (1986) and Toledo-­‐Groke et al. (1985) had already found Cu associated to biotite at ...

10

Evaluation of Red Cabbage Anthocyanins after Partial Purification on Clay

Evaluation of Red Cabbage Anthocyanins after Partial Purification on Clay

... the clay and the red cabbage anthocyanins was avoided, preserving the dye molecules ...chromatography analysis permits to conclude that the use of buffer solution during the adsorption process to adjust the ...

8

Evaluation of the effect of clay in polyethersulfone membranes

Evaluation of the effect of clay in polyethersulfone membranes

... of clay affects the hydrophilic- ity property of the casting solution and altered mem- brane formation during phase inversion ...visual analysis, it is possible to identify changes in the internal pore ...

8

Trimetoprim adsorption onto pillared clay using a full factorial design

Trimetoprim adsorption onto pillared clay using a full factorial design

... A general factorial design (STATGRAPHICS Centurion, StatPoint technologies, Inc, VA 20186, USA) consisting of 32 + 3 (central points) experimental trials have been designed. In order to determine the factors that ...

8

The implications of embodiment and Putty-Clay to economic development

The implications of embodiment and Putty-Clay to economic development

... assumption. Analysis of this model and comparison to alternative models (that exclude one or more of these three ingredients) shows that per capita income is more sensi- tive to distortions in our model than in ...

74

A SEM, EDS and vibrational spectroscopic study of the clay mineral fraipontite

A SEM, EDS and vibrational spectroscopic study of the clay mineral fraipontite

... component analysis was undertaken using the Jandel ‘Peakfit’ soft- ware package which enabled the type of fitting function to be selected and allows specific parameters to be fixed or varied ...

5

Show all 10000 documents...

temas relacionados