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Method of activation of bentonite clay russianpatents

Method of activation of bentonite clay, comprising mixing the crushed wet bentonite clay with sodium reagent activator, heating the mixture up to 40-75 o, Characterized in that the mixing bentonite clay is carried out at a moisture content of clay equal to 20-45%, and heating the obtained mixture is performed with simultaneous governanee mixture.

Activation modification of bentonite

2021-11-15  Acid activation method: There are currently two methods for activating bentonite with acid solution, namely dry method and wet method . Dry activation is to immerse a certain fineness of bentonite (120-200 mesh) in sulfuric acid, hydrochloric acid or phosphoric acid solution and mix thoroughly, squeeze, dry, and then pulverize to obtain

Method for activation of bentonites AZRAD (WEISZ); ANAT

A method for activation of bentonites is described. The method comprises a prior treatment of the bentonite with an organic polymer and/or an aqueous alkaline solution as known from prior art. Subsequently, an amount of 0.01 10% by weight from the treated bentonite of a heavy metal salt is incorporated into the pretreated bentonite and then

[PDF] METHOD OF ACTIVATING BENTONITE CLAYS

This invention relates to methods of activating benton ite clays containing montmorillonites and the like. Clays of the above indicated type are used in the found ry industry as bending clays, in the chemical, pharma ceutical and cosmetic industries, for the production of colors and varnishes, and in the oil industry for boring and so forth. Methods of preparing clays have evolved based on ben

US3240616A Method of activating bentonite clays

bentonite activation activator Prior art date 1962-08-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired Lifetime Application number US219733A Inventor Harasowski Jerzy Paczek Helena Original

Effects of Bentonite Activation Methods on Chitosan

2018-12-11  Effects of Bentonite Activation Methods on Chitosan Loading Capacity Tao Yu1, Chengtun Qu2*, Daidi Fan1, Renjun Xu3 1School of Chemical Engineering, Northwest University, Xi’an 710069, P.R. China 2College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, P.R. China 3Department of Chemical Engineering, Xi’an Light Industry Research Institute, Xi’an 710001

(PDF) Effects of Bentonite Activation Methods on Chitosan

2018-4-2  Effects of Bentonite Activation Methods on Chitosan. Loading Capacity . Tao Yu 1, Chengtun Qu 2*, Daidi Fan 1, Renjun Xu 3. 1 School of Chemical Engineering, Northwest University, Xi’an 710069

Activation conditions of bentonite supports over gold

2020-3-16  The activation of the bentonites was carried out by two methods, (i) thermal activation and (ii) acidic activation. The operating range of the thermal activation studies was determined as 100, 300, 500, 700 °C. Bentonite samples were sieved and the samples having less than 45

Thermal and Acid Activation (TAA) of Bentonite as

2018-8-30  2.2 Methods 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. Thermal activation was conducted by heating the sample using muffle furnace at 400 °C for 3 hours then cooled and stored

One step acid activation of bentonite derived adsorbent

2020-11-19  Similarly, bentonite activation is a complex phenomenon that involves the substitution of exchangeable cations, Al 3+, Mg 2+, and Fe 2+ against protons from the

Activation modification of bentonite

2021-11-15  Acid activation method: There are currently two methods for activating bentonite with acid solution, namely dry method and wet method . Dry activation is to immerse a certain fineness of bentonite (120-200 mesh) in sulfuric acid, hydrochloric acid or phosphoric acid solution and mix thoroughly, squeeze, dry, and then pulverize to obtain

[PDF] METHOD OF ACTIVATING BENTONITE CLAYS

This invention relates to methods of activating benton ite clays containing montmorillonites and the like. Clays of the above indicated type are used in the found ry industry as bending clays, in the chemical, pharma ceutical and cosmetic industries, for the production of colors and varnishes, and in the oil industry for boring and so forth. Methods of preparing clays have evolved based on ben

Effects of Bentonite Activation Methods on Chitosan

2018-12-11  Effects of Bentonite Activation Methods on Chitosan Loading Capacity Tao Yu1, Chengtun Qu2*, Daidi Fan1, Renjun Xu3 1School of Chemical Engineering, Northwest University, Xi’an 710069, P.R. China 2College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, P.R. China 3Department of Chemical Engineering, Xi’an Light Industry Research Institute, Xi’an 710001

bentonite activation methods for iron ore pelletization

2013-6-10  Activation of Iraqi Bentonite AM Publisher|Journal in Science. Key words — Bentonite, thermal activation, specific Pore volume of high plasticity with water, iron

Activating natural bentonite as a cost-effective adsorbent

2015-1-25  The bentonite is a widely available and abundant natural mineral, and can be a low cost adsorbent for water and wastewater treatment. This study reported here was directed towards identifying a cost-effective activation protocol for enhancing the adsorption capacity of Australian bentonite for removal of toxic contaminants in wastewater.

Thermal and Acid Activation (TAA) of Bentonite as

2018-8-30  2.2 Methods 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. Thermal activation was conducted by heating the sample using muffle furnace at 400 °C for 3 hours then cooled and stored

Activation conditions of bentonite supports over gold

2020-3-16  The activation of the bentonites was carried out by two methods, (i) thermal activation and (ii) acidic activation. The operating range of the thermal activation studies was determined as 100, 300, 500, 700 °C. Bentonite samples were sieved and the samples having less than 45

One step acid activation of bentonite derived adsorbent

2020-11-19  Similarly, bentonite activation is a complex phenomenon that involves the substitution of exchangeable cations, Al 3+, Mg 2+, and Fe 2+ against protons from the

Modification of bentonite by combination of reactions of

2014-9-1  The bentonite was first activated (A-Bent) by treatment with mineral acid, and then silylated (S–A-Bent). The treatment of the clay with mineral acid (e.g. acid activation) dissolves impurities such as calcite, opens the edges of the platelets and consequently increases the surface area and the pore diameters (Kooli, 2008).

Alkalische Aktivierung von Bentoniten als Beitrag der

Alkaline Activation of Bentonites. Die europäischen Bentonite liegen in Form von Ca 2+ ‐Bentoniten vor und müssen zur Erzielung relevanter Eigenschaften in Na + ‐Bentonit umgewandelt werden. Es wurde festgestellt, dass die Vollständigkeit der Aktivierung zum einen von der zu dosierenden Menge an Soda, zum anderen von der Effizienz

Activation conditions of bentonite supports over gold

2020-3-16  The activation of the bentonites was carried out by two methods, (i) thermal activation and (ii) acidic activation. The operating range of the thermal activation studies was determined as 100, 300, 500, 700 °C. Bentonite samples were sieved and the samples having less than 45

Synergistic modification of bentonite by acid activation

2020-4-1  The results show that acid activation leached out the Ca 2+ and Mg 2+ ions and increased the porosity of bentonite, thus elevating the adsorption capacity to 149 mg/g. Chinoune et al. (2016 ) prepared Mg(OH) 2 coated bentonite and found it is efficient for adsorption treatment of reactive blue 2 and reactive blue 19.

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

ALTERNATIVE METHOD OF THE ACTIVATION PROCESS

Three methods of activation process had been conducted,namely 60°C-heating; 60°C-heating followed by 1 week settling and 2 weeks settlement. Each method was performed in sulphuric acid and the chemical content of Al 2 O 3 and SiO 2 was observed. An activated bentonite has a molar ratio of SiO 2 and Al 2 O 3 between 6 9.

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

sulfuric acid activation of bentonite clay

activation of bentonite ekk-cl.nl. Sulphuric Acid Activation of a Calcium Bentonite 31 Downloaded by [Ankara Universitesi] at 03:44 06 October 2015 gure, about 60% of the original bentonite is less than 1 m m in size, whereas 70.7% Activation of Non-Swelling Bentonite Clay Minerals. activation methods of bentonite budgetmeister.nl

Preparation of activated bentonite and its adsorption

2017-3-29  bentonite from Algeria (Korichi et al., 2009) and Brazil (Foletto et al., 2013) under microwave radiation. A suitable microwave power could provide a stable and uniform activation atmosphere, promoting the activation rate of sample in the microwave oven, and

bentonite activation methods for iron ore pelletization

bentonite activation plant bentonite activation methods for iron ore pelletization. bentonite activation methods for iron ore pelletization,Results 1 30 of 95 YL Bentonite Wikipedia The main uses of bentonite are for drilling mud, binder (e.g. foundry-sand bond, iron ore pelletizer), purifier, absorbent (e.g. pet litter), and as a

HY Series Organic Bentonite Use-method ZheJiang

HY Series Organic Bentonite Use Method. HY series organic bentonite is made by excelent bentonite with the processing of highly purified, modied and ion exchange into organic covering agent, it is a sheet stucure prouct, if you want the organc bentonite to play a better perfomance, you need to separate its shee-structure as much as possible.

Alkalische Aktivierung von Bentoniten als Beitrag der

Alkaline Activation of Bentonites. Die europäischen Bentonite liegen in Form von Ca 2+ ‐Bentoniten vor und müssen zur Erzielung relevanter Eigenschaften in Na + ‐Bentonit umgewandelt werden. Es wurde festgestellt, dass die Vollständigkeit der Aktivierung zum einen von der zu dosierenden Menge an Soda, zum anderen von der Effizienz