| 학회 |
한국공업화학회 |
| 학술대회 |
2018년 가을 (10/31 ~ 11/02, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 |
22권 2호 |
| 발표분야 |
환경.에너지_포스터 |
| 제목 |
Improvement of Ca/Mg separation efficiency in production of Mg(OH)2 from seawater |
| 초록 |
Producing various carbonate by using cation such as Mg. Ca, Na originated from seawater and CO2 generated from a thermal power plant is attracting attention. Carbonate production has been actively utilized to CO2 storage by using this method. Problems arise in the magnesium hydroxide manufacturing process. The Mg dissolved in the seawater forms precipitation under the condition of the pH 10-12 by the addition of alkali, at the same time, calcium carbonate precipitation occurs. In order to prevent coprecipitation of CaCO3 in the precipitation of Mg(OH)2, careful control is needed for high separation factor of Ca/Mg. It is difficult to separate Mg and Ca even by using various decarboxylation methods such as acid and heat treatment. Therefore, Ca/Mg separation efficiency is improved by using a stepwise process and sodium oxalate. |
| 저자 |
이민수1, 임형미2, 김우식2, 박성수3, 정상옥4
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| 소속 |
1한국세라믹기술원 / 부경대, 2한국세라믹기술원, 3부경대, 4나노텍세라믹스 |
| 키워드 |
Purity control; CO2 storage; Coprecipitation; Separation factor
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| E-Mail |
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