CARBONATE GENERATION AND PURIFICATION THROUGH SELECTIVE RECOVERY OF CALCIUM IONS IN SEAWATER-DERIVED WASTEWATER

An embodiment of the present invention provides a method for manufacturing carbonate comprising following steps of: (a) mixing sodium sulfate in industrial wastewater generated in a salt purification process to precipitate and separate calcium sulfate; (b) conducting a reaction of the calcium sulfat...

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Bibliographic Details
Main Authors KIM INJUN, KANG DONGWOO, YOO YUNSUNG, PARK JINWON, CHOI EUNJI
Format Patent
LanguageEnglish
Korean
Published 16.10.2019
Subjects
CHEMISTRY
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
INORGANIC CHEMISTRY
METALLURGY
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Summary:An embodiment of the present invention provides a method for manufacturing carbonate comprising following steps of: (a) mixing sodium sulfate in industrial wastewater generated in a salt purification process to precipitate and separate calcium sulfate; (b) conducting a reaction of the calcium sulfate with carbon dioxide; and (c) separating and purifying carbonate in a product of the step (b). 본 발명의 일 실시예는 (a) 소금정제 공정에서 발생하는 산업폐수에 황산나트륨을 혼합하여 황산칼슘을 침전시켜 분리하는 단계; (b) 상기 황산칼슘을 이산화탄소와 반응시키는 단계; 및 (c) 상기 (b) 단계의 생성물 중 탄산염을 분리, 정제하는 단계;를 포함하는, 탄산염의 제조방법을 제공한다.
Bibliography:Application Number: KR20180064031