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http://dx.doi.org/10.14478/ace.2020.1001

A Study on the Characteristics of Calcium Ion Separation by Adding Acidic/Basic Reagents  

Lee, Ye Hwan (Department of Environmental Energy Engineering, Graduate School of Kyonggi University)
Kim, Jeongeun (Department of Environmental Energy Engineering, Kyonggi University)
Kim, Sung Su (Department of Environmental Energy Engineering, Kyonggi University)
Publication Information
Applied Chemistry for Engineering / v.31, no.1, 2020 , pp. 103-107 More about this Journal
Abstract
The purpose of this study is to resource calcium ions contained in most industrial by-products, and confirm the characteristics of calcium ions by extraction and separation conditions. Calcium oxide was used as a calcium extraction source, and hydrochloric acid as an extraction solvent, and the extraction amount according to the concentration of the extraction solvent and the pH dependent characteristics of the extract were analyzed. As the extractant concentration increased, the extracted amount increased while the pH for the extraction was kept constant. In order to separate extracted calcium ions, an acid-basic solution was injected and the formation of precipitates and also the form of precipitates were analyzed. When the sulfuric acid and sodium hydroxide solution of acid and basic substances were injected into the calcium extract, precipitates were formed and separated into CaSO4 and Ca(OH)2 forms.
Keywords
Calcium; Extraction; Separation; pH;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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