| 학회 | 한국화학공학회 |
| 학술대회 | 2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 | 19권 1호, p.156 |
| 발표분야 | 공정시스템 |
| 제목 | Zirconium and Hafnium Tetrachloride Separation by Extractive Distillation with Molten Mixture of NaCl-KCl (8:29M) |
| 초록 | Zirconium alloys have been used for fuel cladding in nuclear industry due to the combination of their low thermal neutron capture cross-section, good corrosion resistance in high temperature water. Since the starting materials for the production of zirconium and hafnium metal by Kroll process, the separation of ZrCl4 and HfCl4 mixture has been investigated under high pressure condition to obtain pure zirconium tetrachloride. However, technical difficulties at the required high pressures prevented the process from becoming commercially feasible. In this study, the development of an extractive distillation operation under ambient pressure is highly desirable. The results of the simulation carried out on ASPEN HYSYS simulator with the hypothetical components are presented. The beneficial performance of using molten salt in extractive distillation has been demonstrated through the total cost reduction compared with the high pressure operation. This research was supported by a grant from the Fundamental R&D Program for Integrated Technology of Industrial Materials funded by the Ministry of Knowledge Economy, Republic of Korea. |
| 저자 | Le Quang Minh, 정영미, 이문용 |
| 소속 | 영남대 |
| 키워드 | Zirconium; Hafnium; Distillation; Molten salt |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
