activation bentonite thermal

(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

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

2018-8-30  thermal and acid activation is a simple modification procedure that applicable to enhance the surface properties of the bentonite sample prior used as adsorbent materials. This study is subjected to enhance bentonite adsorption capacity to the methylene blue dye by physical and chemical activation. Bentonite activation has been

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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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Thermal Activated of Indonesian Bentonite as A Low

The thermal activation of natural bentonite was performed using Thermolyne muffle furnace from Thermo Scientific. The chemical structure of bentonite before and after the thermal activation process was conducted using Shimadzu X-Ray Diffractometer Lab-X type 6000 with scanning speed one deg min-1. The functional group of the natural bentonite

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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

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Investigation on the thermal activation of montmorillonite ...

2017-11-1  Although some work for the thermal treatment of bentonite have been proposed , the activation parameters of sample seem not to be well optimized because of the insufficient experimental data. In addition, the interpretation of variation of montmorillonite before and after thermal activation is not clear although the enhancement of U(VI ...

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Obtaining adsorbents from acid and acid-thermal

2020-7-16  In the case of thermal activation, the calcination of bentonite at 100 or 200 °C affects the structure of the montmorillonite. The surface area of the BAT increased with the temperature increase up to 100 °C and then gradually decreased beyond 100 °C. Thermal activation under a high temperature can remove water molecules and other impurities.

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

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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Investigations of the Changes in the Bentonite Structure ...

2015-4-27  Thermal activation 11 Samples of bentonite, each with a mass of 20 g, were heated at temperatures ranging from 100 0C to 1100 0C for 1 hour. After cooling, the mass of the samples was measured. Samples were then placed into PET containers for use in further experiments. 3. Results and Discussion

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Thermal and chemical stability of Romanian bentonite ...

2011-2-27  Ca–bentonite originating from a Romanian deposit was leached in 0.5–8.0 M HCl solution at 90 °C for 4 h. This material was fully characterized through BET, thermogravimetry, X-rays diffraction, and elemental analysis. The acid treatment at high temperature altered the crystallinity, but produced an increase in the surface area and thermal stability. The resulting

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Thermal Activated of Indonesian Bentonite as A Low

The thermal activation of natural bentonite was performed using Thermolyne muffle furnace from Thermo Scientific. The chemical structure of bentonite before and after the thermal activation process was conducted using Shimadzu X-Ray Diffractometer Lab-X type 6000 with scanning speed one deg min-1. The functional group of the natural bentonite

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Obtaining adsorbents from acid and acid-thermal

2020-7-16  In the case of thermal activation, the calcination of bentonite at 100 or 200 °C affects the structure of the montmorillonite. The surface area of the BAT increased with the temperature increase up to 100 °C and then gradually decreased beyond 100 °C. Thermal activation under a high temperature can remove water molecules and other impurities.

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Activation of Bentonite and Application for Reduction pH ...

2014-1-30  Chemical composition of bentonite may undergo change if when given treatment with ion exchange or by activation. Activation that is often used is thermal activation and chemical activation, in this study used activator is 6% HCl. Bentonite is used as the sample obtained in five villages in the district. Sample preparation is done by the process of drying with sunlight and

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Investigations of the Changes in the Bentonite Structure ...

2015-4-27  Thermal activation 11 Samples of bentonite, each with a mass of 20 g, were heated at temperatures ranging from 100 0C to 1100 0C for 1 hour. After cooling, the mass of the samples was measured. Samples were then placed into PET containers for use in further experiments. 3. Results and Discussion

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Acid-activated Sodium Bentonite and Kaolin Clay ...

2021-8-20  Keywords:Kaolin clay, sodium bentonite clay, acid-activation, physicochemical properties, thermal analysis, characterization. Abstract: Aims and Objective: This paper aims to reveal the useful industrial aspects of kandite and montmorillonite group of clays using as a catalyst after acid activation.

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Investigation of the Surface Acidity of a Bentonite Modi ...

activation of KB samples such that the mass percent of the acid in the bentonite-acid mixture during activation was respectively 10, 20, 30, 40, 50, 60 and 70, and K200-K1300 coded samples18 obtained by the thermal treatment of KB samples at respectively 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200 and 1300 C.

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Thermal and chemical stability of Romanian bentonite ...

2011-2-27  Ca–bentonite originating from a Romanian deposit was leached in 0.5–8.0 M HCl solution at 90 °C for 4 h. This material was fully characterized through BET, thermogravimetry, X-rays diffraction, and elemental analysis. The acid treatment at high temperature altered the crystallinity, but produced an increase in the surface area and thermal stability. The resulting

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Acid-activated Sodium Bentonite and Kaolin Clay ...

The novelty of this study is about sodium bentonite characterization and the results show the prominent behaviour with structural, elemental, morphological, and thermal analysis. Acid-activated kaolin sample has less effect in comparison with acid-activated sodium bentonite. As the removal of the hy

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Sulphuric Acid Activation of a Calcium Bentonite ...

2010-6-4  The objective of this work was to determine the changes of thermal and surface properties of a bentonite from Çankιrι after activation using different concentrations of H 2 SO 4 solutions (0.5–4 M). XRD, FTIR, DTA, and TG analyses of the samples were performed to examine the structural changes of the bentonite before and after acid activation.

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Physico-chemical variation in bentonite by sulfuric acid ...

2010-2-5  [7]. Activation of bentonite by acid is an important step for adsorp-tion of some impurities by active clay. This is so-called “activation process.” The activation of bentonite is carried out in a continuous stirred tank reactor at low temperatures between 70 and 120oC in the presence of activation agents, mostly sulfuric acid. During the

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Acid-thermal Activated Nanobentonite as an Economic ...

2021-9-11  Acid and thermal activation of nano bentonite The acid-thermal activation of nano bentonite was followed by a two-step methodology. Primarily, bentonite was enacted utilizing 0.1 M HCl at 30 °C and stirred for 1 h. Then, the acidified nano bentonite was washed with excess double-ionized water. The samples were comprehensively washed

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Activation of Bentonite and Application for Reduction pH ...

2014-1-30  Chemical composition of bentonite may undergo change if when given treatment with ion exchange or by activation. Activation that is often used is thermal activation and chemical activation, in this study used activator is 6% HCl. Bentonite is used as the sample obtained in five villages in the district. Sample preparation is done by the process of drying with sunlight and

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Sulphuric Acid Activation of a Calcium Bentonite ...

2010-6-4  The objective of this work was to determine the changes of thermal and surface properties of a bentonite from Çankιrι after activation using different concentrations of H 2 SO 4 solutions (0.5–4 M). XRD, FTIR, DTA, and TG analyses of the samples were performed to examine the structural changes of the bentonite before and after acid activation.

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Optimization on Na and Ca bentonite activation using ...

Based on the parameter of methylene blue number, the most optimum concentration of H 2 SO 4 used for activation was 0.17 N for both natural bentonite. The heating temperature was 358°C for Na-bentonite and 481°C for Ca bentonite.

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Physico-chemical variation in bentonite by sulfuric acid ...

2010-2-5  [7]. Activation of bentonite by acid is an important step for adsorp-tion of some impurities by active clay. This is so-called “activation process.” The activation of bentonite is carried out in a continuous stirred tank reactor at low temperatures between 70 and 120oC in the presence of activation agents, mostly sulfuric acid. During the

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Examination of the Effectiveness of Physical and

2021-7-8  Al-bentonite. Thermal bentonite The results obtained from thermal analysis performed on a sample of natural bentonite showed that the sample weight changed as a function of temperature, with 13.7% of the bentonite weight loss having occurred when the temperature had reached 700º C. Further heating up to 900º C did not cause any further weight ...

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Academic Journals

The Effect of Acid Activation on Some Physicochemical Properties of a Bentonite . Authors: MÜŞERREF ÖNAL, YÜKSEL SARIKAYA, TÜLAY ALEMDAROĞLU, İHSAN BOZDOĞAN Abstract: A white calcium bentonite (CaB) from the K\"{u}tahya region/Turkey was activated by heating it for 6 hours at 97°C in H_{2}SO_{4} solution. The mass percentage of H_{2}SO_{4}

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Investigations of the Changes in the Bentonite Structure ...

2017-12-13  The bentonite was treated in different ways and the changes in structure were monitored. Acid activation with sulphuric acid of investigated bentonite caused the increase in specific volume of micropore-mesopore. It was shown that activation by acid obtained at a constant temperature and constant period of time provides the possibility to obtain samples of

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Thermal Stability and Kinetic Study of Isotactic ...

Isotactic polypropylene (iPP)/bentonite nanocomposites were prepared via melt blending using bentonite clay originated from Maghnia (Algeria). This clay was, at a first stage, used in its pure form (PBT) and then organically modified by Hexadecyl ammonium chloride (OBT). The effect of Maghnia bentonite dispersion on the iPP matrix was investigated by X-ray diffraction (XRD)

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Rheological Properties of Drilling Fluids Containing ...

2021-2-1  This performance is attributed to the polymers thermal degradation, mainly through hydrolysis and oxidization mechanisms (Flynn, 2002). This thermal degradation makes these additives unsuitable for high-temperature and geothermal drilling applications. Bentonite mud showed a better performance with an apparent viscosity of 70 cP until 200℉.

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