Solvent Extraction of Hydrochloric Acid Using Commercial Extractants and Synthesized Ionic Liquids

Viet Nhan Hoa Nguyen and Man Seung Lee

doi:10.7844/kirr.2020.29.6.79

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2020 Vol.29, Issue 6 Preview Page Next Page

Research Paper

Solvent Extraction of Hydrochloric Acid Using Commercial Extractants and Synthesized Ionic Liquids 상용화 추출제 및 이온성액체에 의한 염산의 용매추출

December 2020. pp. 79-87

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Abstract

염산의 용매추출 및 탈거 거동을 조사하기 위해 상용화추출제인 LIX 63 단독 및 TEHA/ Cyanex 923/ Aliquat 336의 혼합추출제와 ALi-SCN과 ALi-PC 이온성액체를 사용하였다. 상기 추출제중에서 ALi-PC가 가장 높은 추출률(80%)을 보였으나 탈거가 어려웠다. 반면 LIX 63의 경우 추출률은 낮았으나, 탈거율은 81%로 가장 높았다. 옥탄올을 유기상에 첨가하면 염산 추출이 오히려 감소했다. 에탄올을 염산용액에 첨가하면 LIX 63, ALi-PC, ALi-SCN에 의한 염산의 추출과 탈거 거동이 크게 개선되었다.

키워드

염산회수

용매추출

탈거

개질제

The extraction and stripping of HCl from aqueous solutions by commercial extractants like LIX 63 and its mixture with TEHA/ Cyanex 923/ Aliquat 336 and ionic liquids like ALi-SCN, ALi-PC in kerosene was investigated. Among these extractants, ALi-PC showed the best extraction effectivity (above 80%), but it was difficult to strip HCl from the loaded phase. Although the extraction percentage of HCl by LIX 63 was not high, the stripping performance was above 81%. The addition of octanol to the organic phase led to negative effect on the extraction performance of HCl. The addition of C₂H₅OH into aqueous solutions significantly increased the extraction and stripping percentage of HCl by LIX 63, ALi-PC and ALi-SCN.

Keywords

Hydrochloric acid recovery

Solvent extraction

Stripping

Modifier

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Information

Publisher :The Korean Institute of Resources Recycling
Publisher(Ko) :한국자원리싸이클링학회
Journal Title :Journal of the Korean Institute of Resources Recycling
Journal Title(Ko) :자원리싸이클링
Volume : 29
No :6
Pages :79-87
Received Date :2020. 11. 13
Revised Date :2020. 12. 03
Accepted Date : 2020. 12. 10
DOI :https://doi.org/10.7844/kirr.2020.29.6.79

Journal of the Korean Institute of Resources Recycling ISSN:1225-8326(Print) 2287-4380(Online) 자원리싸이클링

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