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Study on concentrating sulfuric acid solution by membrane distillation with metal-PTFE composite membrane

  • Membrane Technology In Metallurgical Processes
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Abstract

concentrating sulfuric acid by membrane distillation in a flat-sheet direct-contact membrane distillation device with a self-made metal-PTFE composite membrane has been studied. The effect of sulfuric acid concentration of feed, the flowrate and liquor temperature in high-temperature side and low-temperature side on the flux and separation efficiency is investigated. The stability of this composite membrane is also inspected. The experimental results show that the metal-PTFE composite membrane can be used in membrane distillation, and its properties are very stable. It is feasible to concentrate sulfuric acid by membrane distillation with this membrane.

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Authors and Affiliations

  1. Department of Metallurgical Science and Engineering, Central South University of Technology, 410083, Changsha, China

    Zhang Guiqing, Zhang Qixiu, Zhou Kanggen & Luo Aiping

Authors
  1. Zhang Guiqing
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  2. Zhang Qixiu
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  3. Zhou Kanggen
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  4. Luo Aiping
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Additional information

Project supported by the Key Program of the 9th Five-year Plan of China

Synopsis of the first author Zhang Guiqing, Doctoral student, born in 1969, majoring in separation science and engineering of metallurgy.

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Zhang, G., Zhang, Q., Zhou, K. et al. Study on concentrating sulfuric acid solution by membrane distillation with metal-PTFE composite membrane. J Cent. South Univ. Technol. 6, 95–98 (1999). https://doi.org/10.1007/s11771-999-0006-6

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  • DOI: https://doi.org/10.1007/s11771-999-0006-6

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