| Sulfuric acid recovery from rare earth sulphate solutions by diffusion dialysis |
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| 作者姓名： | 唐建军 周康根 张启修 |
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| 作者单位： | School of Construction and Environmental Engineering Shenzhen Polytechnic Shenzhen 518055 China，School of Metallurgical Science and Engineering Central South University Changsha 410083 China，School of Metallurgical Science and Engineering Central South University Changsha 410083 China |
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| 摘 要： | 1 Introduction As an important industrial chemical, sulfuric acids are widely used in metallurgical and chemical processes, in which some waste solutions containing free sulfuric acids and metallic ions are therefore produced1, 2]. If these waste acids …
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| 关 键 词： | 腹膜透析 硫磺酸 恢复 稀土 数学模型 |
| 收稿时间： | 2005-09-27 |
Sulfuric acid recovery from rare earth sulphate solutions by diffusion dialysis |
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| TANG Jian-jun,ZHOU Kang-gen,ZHANG Qi-xiu.Sulfuric acid recovery from rare earth sulphate solutions by diffusion dialysis[J].Transactions of Nonferrous Metals Society of China,2006,16(4):951-955. |
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| Authors: | TANG Jian-jun ZHOU Kang-gen ZHANG Qi-xiu |
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| Affiliation: | 1. School of Construction and Environmental Engineering, Shenzhen Polytechnic, Shenzhen 518055, China;2. School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China;1. Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia;2. Department of Mechanical and Aerospace Engineering, Monash University, Clayton, Victoria 3800, Australia;3. CAS Key Laboratory of Soft Matter Chemistry, Laboratory of Functional Membrane, School of Chemistry and Material Science, University of Science and Technology of China, Hefei 230026, People’s Republic of China;1. Department of Environmental Engineering, Sangmyung University, 300 Anseo-dong, Dongnam-gu, Cheonan 330-720, Republic of Korea;2. School of Environmental Science and Engineering, Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro, Buk-gu, Gwangju 500-712, Republic of Korea;3. Fuel Cell Research Center, Korea Institute of Energy Research, Yuesong-gu, Daejeon 305-343, Republic of Korea;4. ENERTEC Co. Ltd., 138 Gongdanbukgil, Chilseo-myeon, Haman-gun, Gyeongsangnam-do 637-941, Republic of Korea |
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| Abstract: | Sulfuric acid recovery from rare earth sulphate solutions by diffusion dialysis was studied. The mass transfer model of diffusion dialysis was established, the comparison between the experimental results and mathematical results was carried out, and the numerical analysis on the effects of operational parameters was studied. The results indicate that the derived mathematical model shows good quantitative relation between sulphuric acid recovery ratio and operational parameters, and the mathematical results agree with the experimental results well. The numerical analysis results indicate that it is appropriate to keep the ratio of water and feed flow rates, processing capacity per membrane area and recovery ratio of sulphuric acid to be 1, 20 L/(m2·d) and 0.7-0.8, respectively. |
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| Keywords: | diffusion dialysis sulfuric acid recovery rare earth mathematical model |
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