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.
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Bentonite and calcium hydroxide are the widely used binding materials in iron ore pelletizing plants. ... 1000 – 1200 oC, was probably due to the sintering of fine hematite particles ... addition may be explained as follows: Bentonite has a layer.
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this application, the bentonite must be capable of forming a barrier or "filter cake" on the . fluids, as an alternative to bentonite, have grown in usage for bored piling . Processing methods used in the production of sodiumactivated bentonite .
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Bentonite has vide variety of uses. Special use of bentonite, where its absorbing properties are employed to provide watertight sealing is for an underground repository in granites In this paper, bentonite processing and beneficiation are described.
Acid activation of bentonite. Acid activation of bentonite using mineral acids (sulfuric or hydrochloric acids) increases its specific surface area and adsorption capacity. The exchangeable cations ( Al +3, Mg 2+ and Fe 2+) are extracted from the octahedral sheet and replaced by protons (Christidis et al., 1997, Didi et al., 2009).
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