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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 101 - 111 (11page)
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초록· 키워드
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The present work aimed to optimize the lanthanum extraction efficiency in the pilot-scale asymmetric rotating disc contactor. Optimal batch-scale extraction conditions were determined for the preparation of feed for extraction column (D2EHPA 0.08 mol/L; pH~8). In continuous mode, the optimization with the central composite design approach was performed by using three main parameters, such as continuous phase flow rate, agitation intensity, dispersed phase flow rate. Three responses studied were slip velocity, dispersed phase holdup, and extraction efficiency. The higher value of extraction efficiency for lanthanum extraction shows the main effect of agitation intensity on the dispersed phase holdup, slip velocity, and rate of mass transfer. The optimum conditions for extraction efficiency equal 98.5% were obtained at a rotation speed equal to 7.75 1/s, and phase flow rates equal to 1.25 × 10−5 m3/s. The new correlations are estimated to describe the holdup of the dispersed phase and the slip velocity with high accuracy and R-square values equal to 0.9734 and 0.9670, respectively. The results showed that the pilot plant asymmetric rotating disc column could be used as an appropriate column for the lanthanum extraction from aqueous solution as an example of rare earth metals.
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참고문헌 (41)
참고문헌 신청
Abdeltawab, A. A. / 2002 / Separation of La and Ce with PC-88A by countercurrent mixer-settler extraction column / Separation and Purification Technology 26:265~272
Acharya, S. / 2017 / Solvent extraction of La(III)using Cyanex 921 in petrofin and modelling of data by linear and nonlinear techniques / Journal of Radioanalytical and Nuclear Chemistry 314:1813~1824
Acharya, S. / 2015 / Studies on extraction and separation of La(III)with DEHPA and PC88A in petrofin / Hydrometallurgy 156:12~16
Asadollahzadeh, M. / 2016 / Holdup, characteristic velocity and slip velocity between two phases in a multi-impeller column for high/medium/low interfacial tension systems / Chemical Engineering and Processing 100:65~78
Asadollahzadeh, M. / 2016 / Unified new correlation for prediction of dispersed phase holdup in agitated extraction columns / Separation and Purification Technology 158:275~285
Acharya, S. / 2017 / Solvent extraction of La(III)using Cyanex 921 in petrofin and modelling of data by linear and nonlinear techniques / Journal of Radioanalytical and Nuclear Chemistry 314:1813~1824
Acharya, S. / 2015 / Studies on extraction and separation of La(III)with DEHPA and PC88A in petrofin / Hydrometallurgy 156:12~16
Asadollahzadeh, M. / 2016 / Holdup, characteristic velocity and slip velocity between two phases in a multi-impeller column for high/medium/low interfacial tension systems / Chemical Engineering and Processing 100:65~78
Asadollahzadeh, M. / 2016 / Unified new correlation for prediction of dispersed phase holdup in agitated extraction columns / Separation and Purification Technology 158:275~285
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