Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 461432-23-5, Name is 4-Bromo-1-chloro-2-(4-ethoxybenzyl)benzene, molecular formula is , belongs to chlorides-buliding-blocks compound. In a document, author is Valeev, Dmitry, HPLC of Formula: C15H14BrClO.
High-pressure HCl leaching of coal ash to extract Al into a chloride solution with further use as a coagulant for water treatment
In the present paper a novel process of the coal ash treatment was developed and analyzed: a high-pressure autoclave HCl leaching of the coal bottom and fly ash from an Omsk coal-fired power plant. This process was applied to extract aluminum from the coal ash into a chloride solution, which can further be used as a coagulant for water treatment. The Al extraction efficiency in this process can reach over 90% at certain process parameters discussed in the present study. Kinetics of the leaching process were evaluated using different kinetic (e.g. shrinking core) models. A semi-empirical equation was proposed for description of the kinetics of the leaching process as a function of the HCl concentration, solid-to-liquid ratio and temperature. Different mechanisms of the leaching process were also discussed and proposed. Water treatment by the obtained Al-chloride showed good results compared to an industrial coagulant; the treated water parameters were within the limits recommended by the World Health Organization for drinkable water. (C) 2020 Elsevier Ltd. All rights reserved.
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