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A Study on the Preparation of Precipitated Calcium Carbonate from Steelmaking Slag
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- 발행기관
- 국제문화기술진흥원 바로가기
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- 간행물
- International Journal of Advanced Culture Technology(IJACT) KCI 등재 바로가기
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- 통권
- Volume 10 Number 1 (2022.03)바로가기
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- 페이지
- pp.284-293
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- 저자
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- 언어
- 영어(ENG)
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- URL
- https://www.earticle.net/Article/A409966
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
- 영어
- After extracting the calcium component from the KR slag and the converter slag using ammonium chloride solution, the extract was reacted with carbon dioxide to synthesize precipitated calcium carbonate (PCC). In order to understand the effect of ultrasonic waves on calcium extraction from slags and calcium carbonate synthesis, the efficiency of calcium carbonate synthesis according to the with or without of ultrasonic waves was analyzed. The synthetic efficiency of PCC was investigated according to various experimental conditions, and the synthesized calcium carbonate was analyzed using XRD and SEM. In both slags, the amount of PCC decreased as the reaction temperature increased. The pH at the end of the experiment capable of synthesizing the maximum PCC in the carbonation reaction was 7 (irradiated with ultrasound) and 8 (irradiated without ultrasound), respectively. Because the pH of the extraction filtrate is different when irradiated with or without ultrasound, the pH was adjusted to 9 by injecting an additive (10 M NaOH) before the carbonation experiment, and then the experiment was performed. When calcium was extracted from KR slag, the crystal phase appeared as calcite regardless of the pH at the end of the experiment. However, when calcium was extracted from the converter slag and the pH was set to 7 at the end of the experiment, the crystal phase of PCC appeared as a mixture of calcite and vaterite.
목차
Abstract
1. INTRODUCTION
2. THEORETICAL CONSIDERATION
2.1 Steel slag
2.2 Ca extraction from slag
2.3 Calcium carbonate synthesis
3. EXPERIMENTS
3.1 Sample
3.2 Method
3.3 Analysis
4. RESULTS AND DISCUSSION
4.1 Ca extraction
4.2 Effect of temperature on PCC synthesis
4.3 Effect of end pH on PCC synthesis
4.4 Effect of additives on PCC synthesis
5. CONCLUSION
REFERENCES
키워드
Calcium extraction Calcite Carbonation Precipitated calcium carbonate(PCC) Slag저자
간행물 정보
발행기관
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- 발행기관명
- 국제문화기술진흥원 [The International Promotion Agency of Culture Technology]
- 설립연도
- 2009
- 분야
- 공학>공학일반
- 소개
- 본 진흥원은 문화기술(Culture Technology) 관련 산·학·연·관으로 구성된 비영리 단체이다. 문화기술(CT)은 정보통신기술(ICT), 문화적 사고 기반의 예술, 인문학, 디자인, 사회과학기술이 접목된 신융합기술(New Convergence Technology, NCT)로 정의한다. 인간의 삶의 질을 향상시키고, 진보된 방향으로 변화시키고, 문화기술 관련 분야의 학술 및 기술의 발전과 진흥에 공헌하기 위하여, 제3조의 필요한 사업을 행함을 그 목적으로 한다.
간행물
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- 간행물명
- International Journal of Advanced Culture Technology(IJACT)
- 간기
- 계간
- pISSN
- 2288-7202
- eISSN
- 2288-7318
- 수록기간
- 2013~2025
- 등재여부
- KCI 등재
- 십진분류
- KDC 600 DDC 700
이 권호 내 다른 논문 / International Journal of Advanced Culture Technology(IJACT) Volume 10 Number 1
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