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광물에서 물질로 - 용매 추출공정 기술에 대한 자료입니다.
목차
1. 용매 추출 4
1) 정의 ························································································ 4
2) 원리 ························································································ 4
(1) 액-액 추출 ··························································································· 4
(2) 침출 ···································································································· 5
(3) 액-액 추출장치 ······················································································ 6
(4) 고-액 추출장치 ······················································································ 10
(5) 용제의 조건 ·························································································· 11
2. 용매 추출 공정 관련 기술 12
1) Carver-Greenfield 공정 ···························································· 12
2) B.E.S.T 용매 추출 기술 ······························································· 14
3) 액화가스 용매 추출 기술 ······························································ 16
4) SoPE 공정 ·················································································· 18
5) 고농도 염화물 추출법 ·································································· 20
6) 산 처리 추출법 ··········································································· 21
7) 회분식 증기 증류법과 금속 추출법 ··············································· 22
8) 초임계 유체, 이산화탄소 추출법 ··················································· 24
9) 용매추출법을 이용한 조인산의 정제 ·············································· 29
10) 용매추출법을 이용한 오염물질의 최소화 ······································ 31
3. 산업동향 33
1) 용매추출에 의한 초정정 연료 개발 동향 ········································ 33
2) 초임계 유체 활용 국내 개발 동향 ················································· 33
3) 조류의 용매추출을 통한 바이오 디젤의 생산 동향 ························ 35
그 림 목 차
[그림 Ⅰ-1] 속실렛 추출장치 ·············································· 5
[그림 Ⅰ-2] 믹서 세틀러 추출 공정 ····································· 6
[그림 Ⅰ-3] 분무탑 추출장치 ·············································· 7
[그림 Ⅰ-4] 다공판탑 추출장치 ··········································· 8
[그림 Ⅰ-5] 방해판탑 추출 장치 ········································· 9
[그림 Ⅰ-6] 쉬벨 교반 추출장치 ········································· 10
[그림 Ⅰ-7] 교반식 추출 장치 ············································ 11
[그림 Ⅱ-1] Carver-Greenfield 공정 ·································· 13
[그림 Ⅱ-2] B.E.S.T 용매 추출 기술 ··································· 15
[그림 Ⅱ-3] 액화 가스 용매 추출 기술 ································ 17
[그림 Ⅱ-4] 산 처리 추출 시스템 ······································· 21
[그림 Ⅱ-5] 회분식 증기 증류법과 금속 추출 ······················· 23
[그림 Ⅱ-6] 초임계 ··························································· 25
[그림 Ⅱ-7] 초임계 이산화탄소 추출 기술 ··························· 25
[그림 Ⅱ-8] 용매추출법을 이용한 조인산의 정제 ·················· 27
[그림 Ⅲ-1] 초임계 유체 특징 및 공정의 장점 ····················· 29
표 목 차
[표 Ⅱ-1] 초임계유체 추출법의 응용분야 ····························· 27
본문내용
1. 용매추출
1) 정의
액체의 용매를 사용해서 고체 또는 액체 속에서 어떤 특정한 물질을 용해, 분리하여 조작하는 것을 추출이 한다. 혼합물 속에서 산, 알칼리에 의한 반응 또는 킬레이트 생성과 같은 화학반응에 의해서 추출하거나 용매만 이용하여 추출한다. 고체에서 추출하는 경우를 ‘고-액 추출’ 또는 ‘침출’이라하며 액체에서 추출하는 경우를 ‘액-액 추출’이라 한다.
2) 원리
추출(extraction)이란 액체 혼합물과 고체 혼합물에 포함되어 있는 가용성 성분을 용매를 가하여 분리하는 조작이다. 추출은 크게 침출과 용매 추출로 나눌 수 있다. 그리고 추출에 쓰이는 용어 중 용저(solvent)는 추출에 사용하는 용매이며, 추출상(extract phase)은 용질을 많이 함유한 상, 추진상(raffinate phase)은 용질이 빠져나간상, 추질(solute)은 혼합물 속에 들어 있는 목적 성분을 말한다.
(1) 액-액 추출
액-액 추출은 액체 혼합물에 용매를 가하여 특정한 성분을 분리하는 용매 추출 (solvent extraction) 조작이다. 용매 추출은 액체 혼합물의 끓는점이 비슷해서 증류에 의해 분리하기가 곤란하거나 열 을 가하면 안 되는 물질이 있을 때에 적용한다.
가. 용매 추출 조작의 응용
가) 구리의 산 용액에서 구리의 정제
나) 중유에서 고급휘발유의 추출
다) 식물유의 정제
라) 폐수 속의 중금속 추출
참고문헌
1. 국가환경산업기술정보시스템 [전자자료].
http://www.konetic.or.kr/?p_name=dbsv&sub_page=practical_use
(2012년 4월 7일자 자료)
2. 국가지식포털 [전자자료].
https://www.knowledge.go.kr/
(2012년 4월 7일자 자료)
3. 이성풍, 최성수, 운문섭, 김상일(2011), ‘환경기술 기술동향보고서’, 전자자료
4. ‘국내 최초 고순도 바이오디젤 개발 성공’, ,2011년 9월 6일, http://www.daara.co.kr/news/141990, (2012년 4월 8일자 자료)
5. Solvent Extraction(Chemical Extraction),
http://boyilet.com.ne.kr/solv.html,
(2012년 4월 8일자 자료)
6. 초임계 유체 추출공정,
http://blog.daum.net/hannong72/8457352
(2009년 10월 17일자 자료)