Journal of Powder Materials

Research Article

[Korean]
Extraction of MgSO₄ from dolomite and synthesis of Mg(OH)₂ in Bittern: HyunSeung Shim, Jiyeon Kim, Areum Choi, Nuri Oh, YooJin Kim; J Powder Mater. 2025;32(2):122-130. Published online April 30, 2025; DOI: https://doi.org/10.4150/jpm.2025.00073

1,170 View
41 Download
2 Citations

We synthesized magnesium hydroxide using bittern and dolomite, which are domestic resources. In Bittern, there is a high concentration of Mg2+ ions, but the impurity Ca2+ ion content is also significant, requiring a purification process to remove it. There are two main methods for this purification. Firstly, there is a separation method that utilizes the difference in solubility between Mg2+ ions and Ca2+ ions by using sulfuric acid on dolomite. Adding MgSO4 solution from dolomite to Bittern removes Ca2+ ions as CaSO4. This process simultaneously purifies Ca impurities and increases the Mg/Ca ratio by adding extra Mg2+ ions. In this study, purified bittern was obtained by using dolomite and sulfuric acid to extract MgSO4, which was then used to purify Ca2+ ions. High-purity Mg(OH)2 was synthesized by optimizing the NaOH and NH4OH ratio as an alkaline precipitant.

Citations

Citations to this article as recorded by

Microwave-assisted carbonation of magnesium hydroxide in aqueous sodium bicarbonate solution
Wonseok Hur, YooJin Kim, Duk-Young Jung
Journal of Physics and Chemistry of Solids.2026; 215: 113714. CrossRef
Synthesis and Morphology Control of Needle Type 513 MHSH and Mg(OH)2 from Dolomite
Jiyeon Kim, HyunSeung Shim, Seong-Ju Hwang, YooJin Kim
Journal of Powder Materials.2025; 32(5): 399. CrossRef

First
Prev
Page of 1
Next
Last

Search