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1次/2次 資源으로부터 Os과 Ru 回收技術

Technology for the Recovery of Os and Ru from Primary/Secondary Resources

이만승|SUNPAN PAN
한국자원리싸이클링학회|2012.12|자원리싸이클링 (Resources Recycling)|제21권 제6호|pp. 3-11|DOI 10.7844/kirr.2012.21.6.3

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recoveryOsmium증발distillationsolvent extraction용매추출오스뮴루테늄회수Abstractruthenium
주제분류자원공학

초록

오스뮴과 루테늄을 함유한 1차와 2차 자원으로부터 두 금속의 회수 방법을 조사했다. 오스뮴과 루테늄은 휘발성이 있는 산화물을 형성하므로 증발법을 통해 다른 백금족금속으로부터 분리가 가능하다. 두 금속은 염산용액에서 다양한 산화상태의 착물을 형성한다. 아민계 또는 아민계 혼합추출제는 침출용액으로부터 루테늄의 추출에 이용된다. 용매화 추출제는 루테늄과 오스뮴의 분리에사용된다. 기존에 발표된 용매추출공정의 추출과 탈취조건을 조사했다. 용매추출에 대한 대체 공정으로 미량성분의 회수에 이용될수 있는 고체-액체법을 소개하였다.

Abstract

Some methods used for the recovery of osmium and ruthenium from primary/ secondary sources are reviewed. Both Ru and Os could form volatile oxides which enable their separation from the other PGMs by distillation as a traditional method. In hydrochloric acid solution, they also form chloro-complexes with different valence states. Amines or amine based mixture have been used to extract Ru. Solvating extractants are employed to separate Ru and Os. The detailed extraction and stripping conditions of several solvent extraction processes have been reviewed. As an alternative to solvent extraction, solid-liquid method can be applied to recover trace amount of these metals.

참고문헌 (40)

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