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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 of Bentonite by Hydrochloric Acid The hydrochloric acid (HCl) (98%, g/cm 3) and other chemicals used are of analytical grade. The purified bentonite was prepared for acid activation: 15 g ± 0.01 g of the purified sample was weighed into a flask and 200 mL of 1.0 M HCl was added. A method for the activation of bentonite which comprises treating the bentonite with 0.25-10% by weight of bentonite of an organic polymer and an aqueous alkaline solution, both known, the improvement being the incorporation into the treated bentonite of an amount of 0.01-10% by weight from the pretreated bentonite of a heavy metal salt selected from salts of Fe, Ni, Zn, Co, Cr and Mn and drying the The acid activation of bentonite from Middle Anatolia, consisting of mostly montmorillonite, with a hot solution of H 2 SO 4 with different concentrations was 2020-6-10 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 treatment for the removal of ciprofloxacin. 2017-3-29 Abstract: The present research work focuses on effective preparation of activated bentonite (AB) and its application in removal of oil-soluble green pigment (OSGP) from either vegetable oils or food-processing wastewater. Mono-factor experiments were carried out to explore the effects of operation factors in preparation of AB. Acid activation of Bentonite for use as a vegetable oil bleaching agent The design of various experiments in order to assess and simulate the effects of the acid activation of an Algerian bentonite on the bleaching capacity of Colza oil is described. Three key parameters of the acidic activation, namely acid 2021-3-12 Acid Activated Indian Bentonite, an Efficient Catalyst for Esterification of Carboxylic Acids. Catalysis Letters 2009, 128 (1-2),183-189. https://doi/10.1007/s10562-008-9729-5; H. Noyan, M. Önal, Y. Sarıkaya. A model developed for acid dissolution thermodynamics of a Turkish bentonite. 2020-12-1 Acid activation of bentonite and beads preparation The acid-activation of bentonite was performed by adopting the previously reported methodology and the activated clay in the form of fine powder was utilized for the beads preparation. The beads preparation was carried out by adapting the ionic gelation method [ 27 ]. There are various methods of activation which may be applied according to classifying coefilcient. There are three principal methods of activation, the socalled wet methods, which consist of...
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