Production of SrCO3 from SrSO4 through the Black Ash Process

Jungshin Kang; Jin-Young Lee

doi:10.7844/kirr.2021.30.5.49

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2021 Vol.30, Issue 5 Preview Page Next Page

Research Paper

Production of SrCO₃ from SrSO₄ through the Black Ash Process Black Ash법을 이용한 SrSO₄로부터 SrCO₃ 제조

31 October 2021. pp. 49-56

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Abstract

In this study, using strontium sulfate (SrSO₄) recovered from magnetite ore in Hongcheon, the Black Ash process was used to produce strontium carbonate (SrCO₃). In the carbothermic reaction step, SrSO₄ was reacted with carbon (C) at 1273 K under Ar gas atmosphere using a gas-tight quartz reactor to produce strontium sulfide (SrS). Afterward, water leaching of the residues produced from the carbothermic reaction at 353 K and carbonation of the leaching solution using sodium carbonate (Na₂CO₃) at 298 K were conducted to produce SrCO₃. The results of this study demonstrate the feasibility of the production of SrCO₃ via the Black Ash process using domestic magnetite ore containing strontium (Sr).

Keywords

Black Ash process

strontium sulfate

strontium carbonate

본 연구에서는 Black Ash법을 이용하여 홍천 자철광으로부터 회수된 황산스트론튬 (SrSO₄)으로부터 탄산스트론튬 (SrCO₃)을 제조하였다. Carbothermic 반응 단계에서는 황화스트론튬 (SrS)을 제조하기 위해 1273 K의 Ar 가스 분위기의 석영반응기를 사용하여 SrSO₄를 탄소와 같이 반응시켰다. 이후 353 K에서 carbothermic 반응으로 회수된 잔사의 수침출 및 298 K에서 탄산나트륨 (Na₂CO₃)를 이용한 침출액의 탄산화 반응을 통해 SrCO₃을 제조하였다. 본 연구결과로부터 Black Ash법 활용 시 국내산 자철광 내 함유된 스트론튬 (Sr)으로부터 고순도 탄산스트론튬 제조가 가능함을 실험적으로 증명하였다.

키워드

Black Ash법

황산스트론튬

탄산스트론튬

References

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Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 30
No :5
Pages :49-56
Received Date : 2021-09-27
Revised Date : 2021-10-12
Accepted Date : 2021-10-12
DOI :https://doi.org/10.7844/kirr.2021.30.5.49

Resources Recycling ISSN:2765-3439(Print) 2765-3447(Online) 자원리싸이클링

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