Electrodialysis technology for salt recovery from aluminum salt cake

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Electrodialysis technology for recovering salt from aluminum salt cake is being developed at Argonne National Laboratory. Salt cake, a slag-like aluminum-industry waste stream, contains aluminum metal, salt (NaCl and KCl), and nonmetallics (primarily aluminum oxide). Salt cake can be recycled by digesting with water and filtering to recover the metal and oxide values. A major obstacle to widespread salt cake recycling is the cost of recovering salt from the process brine. Electrodialysis technology developed at Argonne appears to be a cost-effective approach to handling the salt brines, compared to evaporation or disposal. In Argonne's technology, the salt brine is concentrated ... continued below

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12 p.

Creation Information

Hryn, J. N.; Krumdick, G.; Graziano, D. & Sreenivasarao, K. February 2, 2000.

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  • Argonne National Laboratory
    Publisher Info: Argonne National Laboratory, Argonne, IL (United States)
    Place of Publication: Argonne, Illinois

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Description

Electrodialysis technology for recovering salt from aluminum salt cake is being developed at Argonne National Laboratory. Salt cake, a slag-like aluminum-industry waste stream, contains aluminum metal, salt (NaCl and KCl), and nonmetallics (primarily aluminum oxide). Salt cake can be recycled by digesting with water and filtering to recover the metal and oxide values. A major obstacle to widespread salt cake recycling is the cost of recovering salt from the process brine. Electrodialysis technology developed at Argonne appears to be a cost-effective approach to handling the salt brines, compared to evaporation or disposal. In Argonne's technology, the salt brine is concentrated until salt crystals are precipitated in the electrodialysis stack; the crystals are recovered downstream. The technology is being evaluated on the pilot scale using Eurodia's EUR 40-76-5 stack.

Physical Description

12 p.

Notes

OSTI as DE00751894

Medium: P; Size: 12 pages

Source

  • 17th Annual Membrane Technologies/Separations Planning Conference, Newton, MA (US), 12/06/1999--12/07/1999

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  • Report No.: ANL/ES/CP-100979
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 751894
  • Archival Resource Key: ark:/67531/metadc712513

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • February 2, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • April 6, 2017, 7:58 p.m.

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Hryn, J. N.; Krumdick, G.; Graziano, D. & Sreenivasarao, K. Electrodialysis technology for salt recovery from aluminum salt cake, article, February 2, 2000; Argonne, Illinois. (digital.library.unt.edu/ark:/67531/metadc712513/: accessed October 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.