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activating bentonite methods

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US3240616A US219733A US21973362A US3240616A US 3240616 A US3240616 A US 3240616A US 219733 A US219733 A US 219733A US 21973362 A US21973362 A US 21973362A US 3240616 A US3240616 A US 3240616A Authority US United States Prior art keywords clay solution bentonite activation activator Prior art date 1962-08-27 Legal status (The legal status is an assumption and is

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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 dried at a temperature not higher than 400*C.

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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 ...

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Method of activation of bentonite clay

(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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Method for activation of bentonites - AZRAD (WEISZ); ANAT

A method for the activation of bentonite according to claim 3 wherein the amount of alkali is in the range of 0.2-10% by weight of the bentonite-organic polymer mass or bentonite. 5. A method for the activation of bentonite according to claim 1 wherein the heavy metal salt

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Jan 25, 2015  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.

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method of activating bentonite clays - greenrevolution.org

Patent US3779782 - Bentonite binder composition - Google Patents. A bentonite binder composition and method of preparation is disclosed. ... Aug 27, 1962, Mar 15, 1966, Paczek Helena, Method of activating bentonite clays...

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Sep 01, 2003  Naturally occurring bentonite is able to adsorb phenol from aqueous solutions. Sodium-treated bentonite underwent several activation methods before its exposure to the phenol solution. It was treated with cetyltrimethyl ammonium bromide (CTAB) as a cationic surfactant, with aluminum-hydroxypolycation as a pillaring agent and a combination of ...

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[PDF] METHOD OF ACTIVATING BENTONITE CLAYS Semantic

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 ...

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(PDF) Effects of Bentonite Activation Methods on Chitosan ...

Apr 02, 2018  The chitosan loading was further increased to 256.30, 233.70, and 208.83 mg/g, when using bentonite clay activated through 6 min of microwave irradiation (800

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method of activating bentonite clays - greenrevolution.org

Patent US3779782 - Bentonite binder composition - Google Patents. A bentonite binder composition and method of preparation is disclosed. ... Aug 27, 1962, Mar 15, 1966, Paczek Helena, Method of activating bentonite clays...

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Adsorption of phenol using different types of activated ...

Sep 01, 2003  Naturally occurring bentonite is able to adsorb phenol from aqueous solutions. Sodium-treated bentonite underwent several activation methods before its exposure to the phenol solution. It was treated with cetyltrimethyl ammonium bromide (CTAB) as a cationic surfactant, with aluminum-hydroxypolycation as a pillaring agent and a combination of ...

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bentonite activation methods for iron ore pelletization ...

Jun 10, 2013  Study on Sodium Modification of Inferior Ca-Based Bentonite by . The sodium modification of the sample is studied by suspension method in this study. Thus, improving the bentonite quality has great importance to the iron and steel .. “Effects of bentonite fiber formation in iron ore pelletization,” International cation-exhange capacity of bentonite by alkali activated ...

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One step acid activation of bentonite derived adsorbent ...

Nov 19, 2020  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

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Effective Approach of Activated Jordanian Bentonite by ...

Jul 07, 2021  Enhancing the adsorption capacity of bentonite achieved by different activation methods which include acid activation [2, 3], organic activation [4, 5], nanobentonite composite [6, 7], polymer, and surfactant bentonite composite [8, 9], along with the combinations of bentonite-zeolite with bentonite-alum and bentonite-limestone was examined.

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Chapter 7.1 Acid Activation of Clay Minerals - ScienceDirect

Jan 01, 2006  Bentonite has always had a multitude of markets and acid-activated bentonite was a traditional product for many decades. It is usually a Ca 2+ -bentonite that was treated with inorganic acids to replace divalent calcium ions with monovalent hydrogen ions and to leach out ferric, ferrous, aluminium and magnesium ions thus altering the layers of ...

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HY Series Organic Bentonite Use Method - Products ...

Dry powder method is that add the dry powder directly into the system during the prodution process, it doesn't need the polar activator, such as HY-2, HY-S2, HY-S34,HY-120,HY-170. p re-gel Method: For por wetability resin systems (such as epoxy polester, short oil alkyd resin etc.) it is better to use HY seies organic bentonite by pre gel.

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The Removal of Methylene Blue Dye from Aqueous Solutions ...

bentonite towards water pollutants such as Methylene Blue dye (MBD) is certainly needed. For this purpose, sodium bentonite was activated by two methods: (1) treatment with sodium dodecyl sulphate (SDS) as an ionic surfactant and (2) thermal treatment in

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Processing Of Activation Bentonite Crusher Mills, Cone ...

The bentonite clay processing plant can process both Sodium and Calcium based Bentonite. bentonite quarry equipment for sale bentonite activation processing line – Ore Crusher, Ore activating bentonite methods Solution for Mining bentonite production line.

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crusher plant for bentonite

Processing Of Activation Bentonite Crusher Mills, Cone . The bentonite clay processing plant can process both Sodium and Calcium based Bentonite. bentonite quarry equipment for sale bentonite activation processing line Ore Crusher, Ore activating bentonite methods Solution for Mining bentonite

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Characterization of activated bentonite clay mineral and ...

Jun 10, 2020  Therefore, acid activation of bentonite could be considered as one of the excellent bentonite modification techniques, which significantly enhanced the sorption capacity of CIP. The wide availability of bentonite, simple modification method, and most likely low operating costs show that modified bentonite is a very suitable sorbent in water ...

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Synthesis of Zeolite X from Bentonite via Hydrothermal Method

Zeolite X were successfully synthesized from bentonite from Lopburi province, in Thailand using the two-step of hydrothermal method under optimum condition without calcination. The first step of hydrothermal were obtained at 200 °C for 3 h to remove unreacted impurity minerals such as quartz and muscovite. The secondary step of hydrothermal were obtained at 90 °C for 120 h for synthesis of ...

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ALTERNATIVE METHOD OF THE ACTIVATION PROCESS FOR

Bentonite has layer structures and a potential to be used as solid catalyst by 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 2O3 and SiO2 was observed. An

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method of activating bentonite clays - greenrevolution.org

Patent US3779782 - Bentonite binder composition - Google Patents. A bentonite binder composition and method of preparation is disclosed. ... Aug 27, 1962, Mar 15, 1966, Paczek Helena, Method of activating bentonite clays...

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method of activating bentonite clays

The method of activation smectite clay (options), and , In particular, the invention relates to a method of making smectites the clays ability to swelling and/or dispersion in an aqueous solution containing dissolved therein an inorganic electrolyte such as a salt solution (eg, ve marine clay, and activated smectite clay obtained by this method Bentonite, containing the greater part of the clay .

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Optimized Activation of Bentonite for Adsorption of ...

The purified bentonite must be activated later by the same method described for the purification and activation, The cation exchange capacity (CEC) determined by the methylene blue method after purification activation was about 120,82 meq/100g air-dried bentonite. Table 2 presents the chemical composite of the crude bentonite “WTcr”, simple ...

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bentonite activation methods for iron ore pelletization ...

Jun 10, 2013  Study on Sodium Modification of Inferior Ca-Based Bentonite by . The sodium modification of the sample is studied by suspension method in this study. Thus, improving the bentonite quality has great importance to the iron and steel .. “Effects of bentonite fiber formation in iron ore pelletization,” International cation-exhange capacity of bentonite by alkali activated ...

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ALEKSANDAR S. APPLICATION OF ACTIVATED BENTONITE

Activation of bentonite clay Acid activation of bentonite clay was performed. Bentonite was activated with 1 M HCl (the mass ratio of clay and acid has been 1:5) at 100 rpm (magnetic stirrer, MSH-30A, Witeg, Germany), at an increased temperature of 70 °C. After 5 h of activation, the sus-pension was filtrated through a Büchner funnel. Acti-

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Improvement of Used Transformer Oils with Activated

refining process and activated Bentonite treament of thet same long operating used transformer oil. By operating the oil for the test period of half year and one year, it has been proved that used oil treated with activated Beto- n nite gives better results. 2.2. Methods of Preparation and Acidic Activation for BENTONITE

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Methods for Using Bentonite to Remove Pesticides from ...

What is claimed is: 1. A method for removing one or more pesticides from an oil extract of plant matter, the method comprising the step of extracting the plant matter to produce an extract, the step of filtering the extract with alumina and silica to produce a filtrate, the step of mixing the filtrate with one or both of (1) A suspension of bentonite in phosphoric acid, and (2) A suspension of ...

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BENTONITE, KAOLIN, AND SELECTED CLAY MINERALS

PROPERTIES, AND ANALYTICAL METHODS 8 2.1 Introduction 8 2.2 Identity 9 2.2.1 Bentonite 9 2.2.2 Kaolin 11 2.2.3 Other clays 12 2.3 Physical and chemical properties 14 2.3.1 Bentonite 14 2.3.2 Kaolin 15 2.3.3 Other clays 15 2.3.4 Surface chemistry 17 2.3.5 Trace elements in clays 18 2.4 Analytical methods

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Separation and characterisation of montmorillonite from a ...

May 29, 2019  Bentonite is usually found in its Ca form with lower CEC, which is an essential property for many applications. To improve CEC, Na-activation is a promising method to enrich bentonite with Na cations without any structural damages [].Furthermore, the Na-activation could help to separate the montmorillonite layers from impurities such as α-quartz and cristobalite usually found in fine sizes [].

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Acid Activated Bentonite TR 3.3.2016

Technical Evaluation Report Acid-Activated Bentonite Livestock March 3, 2016 Page 3 of 13 89 Use instructions for Poultry Guard® state that 2an application rate of 50 lbs/1,000 ft should be used in ideal 90 situations (e.g., when litter is less than a year old, with cake being taken out in between flocks), and a rate

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Activation of Jordanian Bentonite by Hydrochloric Acid and ...

Mar 12, 2018  3.1.4. Determination of BET Surface Area. The surface area of bentonite shows a significant increase with activation by acid. Measured values are 66.2 and 287.8 m 2 g −1 for raw and activated bentonite, respectively. Since this increase is a result of removing impurities, replacement of exchangeable cations, such as K +, Na +, and Ca 2+, with H + ions, and leaching out A1 3+, Fe 3+,

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8-A Novel Method for the Fabrication of Granular ...

A Novel Method for the Fabrication of Granular Hydroxyapatite-bentonite Composite Adsorbents for the Removal of Pb2+ from an Aqueous Solution 374 Fig. 2 FT-IR pattern of the granular HApB composite. shown in Fig. 3. The activated bentonite and HAp particles exhibit a uniform structure with estimated particle sizes of 100 nm.

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Characterization of activated bentonite clay mineral and ...

Jun 10, 2020  Therefore, acid activation of bentonite could be considered as one of the excellent bentonite modification techniques, which significantly enhanced the sorption capacity of CIP. The wide availability of bentonite, simple modification method, and most likely low operating costs show that modified bentonite is a very suitable sorbent in water ...

Read More