Comparison of ultrasonic distillation to sparging of liquid mixtures

POSTER

Abstract

The application of intense ultrasound to a liquid-gas interface results in the formation of an ultrasonic fountain and generates both mist and vapor from the liquid. Here, the composition of the vapor and aerosol above an ultrasonic fountain is determined as a function of irradiation time and compared with the results of sparging for five different solutions. The experimental apparatus for determining the efficiency of separation consists of a glass vessel containing a piezoelectric transducer driven at either 1.65 or 2.40 MHz. Dry nitrogen is passed over the ultrasonic fountain to remove the vapor and aerosol. The compositions of the liquid solutions are recorded as a function of irradiation time using gas chromatography, refractive index measurement, nuclear magnetic resonance, or spectrophotometry. Data are presented for ethanol-water and ethyl acetate-ethanol solutions, cobalt chloride in water, colloidal silica, and colloidal gold. The experiments show that ultrasonic distillation produces separations that are somewhat less complete than what is obtained using sparging.

Authors

  • Han Jung Park

    Brown University / Department of Chemistry

  • Richard D. Averitt

    Trinity College, Department of Physics, Joint appointment in Teacher Education, Wright State University, Graduate School of Education, University of Massachusetts Lowell, Littleton High School, Department of Physics, Boston College, Department of Physics and Applied Physics, University of Massachusetts Lowell, North Carolina State University, University of Massachusetts at Lowell, University of Massachusetts Lowell, Harvard Medical School, Massachusetts General Hospital, Boston, MA, Harvard University, Department of Chemistry University of Massachusetts Amherst, Center for Advanced Materials and Department of Plastics Engineering University of Massachusetts Lowell, Center for Advanced Materials and Department of Physics and Applied Physics University of Massachusetts Lowell, RMD Inc., Watertown MA, UMass Lowell, Lowell MA, Radiation Monitoring Devices Inc., Watertown, MA, USA, University of Massachusetts, Lowell, MA, USA, Argonne National Laboratory, Argonne, IL, USA, ANL, IL, UMass Lowell, Brown University / Department of Chemistry, Sciprint.org, Physics Department, LESIMS Laboratory, Badji Mokhtar University, 23000 Annaba, Algeria, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Physics Department, Boston University

  • Richard D. Averitt

    Trinity College, Department of Physics, Joint appointment in Teacher Education, Wright State University, Graduate School of Education, University of Massachusetts Lowell, Littleton High School, Department of Physics, Boston College, Department of Physics and Applied Physics, University of Massachusetts Lowell, North Carolina State University, University of Massachusetts at Lowell, University of Massachusetts Lowell, Harvard Medical School, Massachusetts General Hospital, Boston, MA, Harvard University, Department of Chemistry University of Massachusetts Amherst, Center for Advanced Materials and Department of Plastics Engineering University of Massachusetts Lowell, Center for Advanced Materials and Department of Physics and Applied Physics University of Massachusetts Lowell, RMD Inc., Watertown MA, UMass Lowell, Lowell MA, Radiation Monitoring Devices Inc., Watertown, MA, USA, University of Massachusetts, Lowell, MA, USA, Argonne National Laboratory, Argonne, IL, USA, ANL, IL, UMass Lowell, Brown University / Department of Chemistry, Sciprint.org, Physics Department, LESIMS Laboratory, Badji Mokhtar University, 23000 Annaba, Algeria, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Physics Department, Boston University

  • Richard D. Averitt

    Trinity College, Department of Physics, Joint appointment in Teacher Education, Wright State University, Graduate School of Education, University of Massachusetts Lowell, Littleton High School, Department of Physics, Boston College, Department of Physics and Applied Physics, University of Massachusetts Lowell, North Carolina State University, University of Massachusetts at Lowell, University of Massachusetts Lowell, Harvard Medical School, Massachusetts General Hospital, Boston, MA, Harvard University, Department of Chemistry University of Massachusetts Amherst, Center for Advanced Materials and Department of Plastics Engineering University of Massachusetts Lowell, Center for Advanced Materials and Department of Physics and Applied Physics University of Massachusetts Lowell, RMD Inc., Watertown MA, UMass Lowell, Lowell MA, Radiation Monitoring Devices Inc., Watertown, MA, USA, University of Massachusetts, Lowell, MA, USA, Argonne National Laboratory, Argonne, IL, USA, ANL, IL, UMass Lowell, Brown University / Department of Chemistry, Sciprint.org, Physics Department, LESIMS Laboratory, Badji Mokhtar University, 23000 Annaba, Algeria, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Physics Department, Boston University