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Modeling natural bentonite, thermal-modified bentonite

2020-11-22  In this research, modification for the natural bentonite clay was achieved using thermal activation and iron modification. The ability of different adsorbents (natural bentonite, thermal-activated bentonite and iron-modified bentonite) in removing tetracycline from contaminated water was examined utilizing artificial neural network consisting of three layers and 315 batch experiments. The ...

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Obtaining adsorbents from acid and acid-thermal

2020-7-16  The acid and thermal activation of bentonite affects the structure of clay minerals, especially montmorillonite and kaolinite. Therefore the specific surface area was enhanced with increasing sulfuric acid concentration and decreased when the temperature of treatment increased.

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(PDF) Thermal and Acid Activation (TAA) of Bentonite as ...

Natural bentonite grounded from Sarolangun District of Jambi Province has been modified based on Thermal and Acid Activation (TAA). The thermal activation was conducted

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Thermal and Acid Activation (TAA) of Bentonite as ...

2.2.1 Natural bentonite activation Natural bentonite activation was performed by a two-step procedure based on the work done by Toor et al. [28], thermal activation followed by acid activation ...

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Thermal Activation of a Pure Montmorillonite Clay and Its ...

Bentonite is a mixture of clay and non-clay minerals. Montmorillonite clay mineral is a dominant mineral in bentonite. Silica and alumina bond in the crystal structure of montmorillonite.

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Investigation on the thermal activation of montmorillonite ...

2017-11-1  The thermal activation montmorillonite has potential application for the removal of U(VI) in wastewater. Abstract. ... Sorption kinetics and equilibrium for the removal of nickel ions from aqueous phase on calcined Bofe bentonite clay. J Hazard Mater, 177 (1) (2010), pp. 362-371.

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Thermal analysis of a white calcium bentonite SpringerLink

2010-1-5  Activation energies for dehydration and dehydroxylation of the smectite, the major clay mineral, are estimated from thermal analysis data. Experimental A white calcium bentonite (CaB) taken from Ankara region, Turkey, was used in the experiments after

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Impact of adding activated bentonite to thermally aged ...

2021-3-7  The thermal analysis of bentonite and activated bentonite was carried using an SDT Q600 thermal analyser under a nitrogen ambience with a heating rate of 5ºC/min. The flow rate of the inert gas was maintained at 100 ml/min and the crucible was made of alumina.

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Studies on the development of activated binary clay and ...

2020-1-1  Activation of bentonite by acid is an important step for adsorption of some impurities by activated clay. Studies revealed that, bentonite clay is used as an earth enhancement material. Bentonite, a naturally occurring clay mostly comprised of the mineral montmorillonite, is hygroscopic and absorbs moisture from the surrounding environment.

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Calcined kaolinite–bentonite clay blends as supplementary ...

2015-5-1  The clay nomenclature used throughout this paper is as follows: Texas kaolinite–calcium bentonite (KCaB), laboratory blended kaolinite–sodium bentonite (KNaB), Georgia kaolinite (K), and quartz (Q). When calcined, the clay name is followed by the selected calcination temperature. For example, the kaolinite–sodium bentonite calcined to 830 ...

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Modeling natural bentonite, thermal-modified bentonite

2020-11-22  In this research, modification for the natural bentonite clay was achieved using thermal activation and iron modification. The ability of different adsorbents (natural bentonite, thermal-activated bentonite and iron-modified bentonite) in removing tetracycline from contaminated water was examined utilizing artificial neural network consisting of three layers and 315 batch experiments. The ...

Get Price

Obtaining adsorbents from acid and acid-thermal

2020-7-16  The acid and thermal activation of bentonite affects the structure of clay minerals, especially montmorillonite and kaolinite. Therefore the specific surface area was enhanced with increasing sulfuric acid concentration and decreased when the temperature of treatment increased.

Get Price

Thermal Activation of a Pure Montmorillonite Clay and Its ...

Bentonite is a mixture of clay and non-clay minerals. Montmorillonite clay mineral is a dominant mineral in bentonite. Silica and alumina bond in the crystal structure of montmorillonite.

Get Price

Thermal and Acid Activation (TAA) of Bentonite as ...

2.2.1 Natural bentonite activation Natural bentonite activation was performed by a two-step procedure based on the work done by Toor et al. [28], thermal activation followed by acid activation ...

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(PDF) Thermal and Acid Activation (TAA) of Bentonite as ...

Natural bentonite grounded from Sarolangun District of Jambi Province has been modified based on Thermal and Acid Activation (TAA). The thermal activation was conducted by calcination at ...

Get Price

Investigation on the thermal activation of montmorillonite ...

2017-11-1  The thermal activation montmorillonite has potential application for the removal of U(VI) in wastewater. Abstract. ... Sorption kinetics and equilibrium for the removal of nickel ions from aqueous phase on calcined Bofe bentonite clay. J Hazard Mater, 177 (1) (2010), pp. 362-371.

Get Price

Impact of adding activated bentonite to thermally aged ...

2021-3-7  The thermal analysis of bentonite and activated bentonite was carried using an SDT Q600 thermal analyser under a nitrogen ambience with a heating rate of 5ºC/min. The flow rate of the inert gas was maintained at 100 ml/min and the crucible was made of alumina.

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Activating natural bentonite as a cost-effective adsorbent ...

2015-1-25  2015-1-25  The combined acid and thermal activation of the bentonite was conducted by a two-step procedure. The bentonite was first activated by HCl over a concentration range from 0.05 to 0.5 M, as described above. The acidified bentonite was then subjected to thermal activation at a low temperature range of 50–150 °C for 20 min in a muffle furnace ...

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Studies on the development of activated binary clay and ...

2020-1-1  Activation of bentonite by acid is an important step for adsorption of some impurities by activated clay. Studies revealed that, bentonite clay is used as an earth enhancement material. Bentonite, a naturally occurring clay mostly comprised of the mineral montmorillonite, is hygroscopic and absorbs moisture from the surrounding environment.

Get Price

Calcined kaolinite–bentonite clay blends as supplementary ...

2015-5-1  The clay nomenclature used throughout this paper is as follows: Texas kaolinite–calcium bentonite (KCaB), laboratory blended kaolinite–sodium bentonite (KNaB), Georgia kaolinite (K), and quartz (Q). When calcined, the clay name is followed by the selected calcination temperature. For example, the kaolinite–sodium bentonite calcined to 830 ...

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Bentonite Clay Manufacturers Activated Bentonite Clay ...

Bentonite contains more than 85% clay mineral called montmorillonite. Though there are many variations, calcium and sodium bentonite are the two major types. While sodium bentonite is the highly swelling type, calcium bentonite is the non-swelling type. Calcium bentonite is the Fuller’s earth used in cosmetic industry. What is Bentonite Clay

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Effect of Thermal Stabilization of Soil, Bentonite ...

2021-8-24  aluminosilicate materials (bentonite, kaolin and zeolite) for the thermal improvement of clay soils. This research discussed the soil pore size obtained at 0 to 650 °C and the SEM images were used for the soil structural analysis [12]. Mohammed et al. (2016) optimized the Algerian clay, which is composed of clay

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PAPER OPEN ACCESS Activation Iraqi bentonite for using

3.2.2.2 Alkali Activation and Thermal Activation 10 g of prepared Iraqi bentonite was mixed with 1, 3, 5, 7 and 9 g of NaoH dissolved in 100 ml distilled water with mixing time 2, 4 6 hours and mixing temperature 70 100 ⁰C. The mixture was dried in

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Physico-Chemical Activation of South African Bentonite ...

2015-3-13  bentonite, kaolinite, montmorillonite, smectite and beidellite [6]. The aim of this study is to determine the influence of acid activation on the metal adsorption capacities of bentonite clay focusing mainly on the influence of temperature, time and concentrations of acids. II. METHODOLOGY A.Materials Bentonite clay

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REFINING OF WASTE FRIED PALM OIL BY MODIFIED

2020-7-12  After thermal activation of natural bentonite clay, the colour changed from brown to dark colour. The heat activated bentonite clay is darker than acid activated bentonite clay. This is because of the clay minerals generally calcined prior to their use in order to remove any impurities or

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Method of activation of bentonite clay - russianpatents

(57) Abstract: The invention relates to the activation of bentonite clay. The method comprises mixing crushed bentonite clay and sodium reagent-activator at a relative humidity of clay equal to 20-45%, heating the resulting mixture up to 40-75 o With simultaneous governanee mixture. The method allows to speed up the activation process and improve the quality of clay by improving its physical ...

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UTILIZATION OF LOCALLY AVAILABLE BENTONITES FOR

2016-12-27  bentonite clay may be used as a good adsorbent of arsenic from drinking water, and by activation of bentonite its adsorption capacity is enhanced to get better results. Both natural and commercial bentonites can be used for adsorption because it is an inexpensive way to remove arsenic from drinking water.

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Research Article Thermal Stability and Kinetic Study of ...

2019-7-31  Bentonite. Prior to its use as nano ller in iPP matrix, OBT was rst characterized by FTIR spectroscopy and X-ray di raction to evidence its organic modi cation. Figure illustrates FTIR spectra of pure and organically modi ed bentonite clay. Pure bentonite clay shows characteristic vibration bands located at cm 1 (OH stretching from lattice ...

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Thermophysical properties of bentonite

2018-2-26  The thermal characteristics of different highly compacted bentonite blocks as well as granular material of compacted bentonite were characterised in actual HLW disposal research projects (e.g. EURATOM HE FIKW-CT-2001-00132). EXPERIMENTAL CONCEPT The investigated bentonites were a Ca,Mg-bentonite from Almeria (Spain) and a natural sodium bentonite

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Application of Quadratic Polynomial Model for the

The modification of clay minerals has been applied recently [31]. There are several methods for bentonite modifications, such as acid activation, thermal activation and cationic surfactant [32, 33]. Such activation processes resulted in obvious modifications in the physical structures

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