Clean Technology, Vol.23, No.4, 393-400, December, 2017
파일럿 규모에서 철-니켈 합금 에칭폐액 재생
Recovery of Iron-Nickel Alloy Etching Waste Solution in Pilot Scale
초록
본 연구에서는 염화제이철의 재생공정으로 기존 용매추출법에서 사용하고 있는 용매인 TBP 및 Alamine336 대신에 새로운 용매를 통해 용액 내에 존재하는 Ni과 Fe를 분리 및 회수하는 공정을 개발하였다. Lab 실험을 통하여 실험조건을 최적화하였으며, 이를 바탕으로 상업화를 위한 10 L h-1급 파일럿 설비를 구축하였다. 또한 파일럿 실험을 통하여 양산을 위한 공정 데이터를 확보하였으며, 제조된 염화제이철의 부식실험을 통하여 사용할 수 있는 제품 품질에 문제없음을 확인하였다.
In this study, we have developed a process for separating and recovering Ni and Fe in solution through a new solvent instead of TBP and Alamine336, which are solvents used in the conventional solvent extraction method. Experimental conditions were optimized through lab test and a 10 L h-1 pilot plant was constructed for commercialization. In addition, the process data for mass production were obtained through pilot experiment and it was confirmed that there is no problem in product quality that can be used through the corrosion test of ferric chloride.
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