W. M. Youssef, A. A. Elzoghby, E. M. Helmy, Khalil A. Khalil, H. S. Gado, A. A. Rateb
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引用次数: 0
Abstract
Purification of phosphoric acid (H3PO4) is considered major problem and several ways have been evaluated. In this study, two different types of clay, raw kaolinite clay (RKC) and chemical kaolinite clay (CKC) were used for the removal of organic matter (OM). The used samples were characterized by X-ray diffraction, SEM, FT-IR, and chemical analysis. The adsorptive capacities of the samples were investigated by using them to adsorb organic matter from crude-strength phosphoric acid. Removal of organic matter from crude phosphoric acid was carried out by adsorption using RKC and СKC minerals. The different factors affecting the adsorption process were investigated. The experimental data exhibited that the clay treated with sulfuric acid had the highest organic matter adsorption capacity. The equilibrium adsorption data were analyzed using the Langmuir and Freundlich isotherms. The results showed that the equilibrium adsorption capacities for the two adsorbents followed the Langmuir model.
期刊介绍：
Russian Journal of Applied Chemistry (Zhurnal prikladnoi khimii) was founded in 1928. It covers all application problems of modern chemistry, including the structure of inorganic and organic compounds, kinetics and mechanisms of chemical reactions, problems of chemical processes and apparatus, borderline problems of chemistry, and applied research.
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