227th ACS National Meeting, Anaheim, CA, March 28-April 1, 2004

Molecular Receptors for Anion Binding
The symposium will focus on aspects of chemistry relative to the development of effective molecular hosts for anion complexation. Topics will include fundamental studies of the structural and thermodynamic aspects of anion-host interactions, how information from such studies is being applied in the design of host architectures, and the preparation, characterization, and coordination chemistry of novel anion receptors. Oral papers by invitation only. For further information, please contact Benjamin P. Hay, W. R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, PO BOX 999, Richland, WA 99352, ben.hay@pnl.gov; or Kristin Bowman-James, Department of Chemistry, University of Kansas, Lawrence, Kansas 66045 kbowman-james@ku.edu

Techniques and Experiences in Scaling up Chemical Separation Processes
Papers describing scale-up of advanced separation processes from bench to either pilot or manufacturing scales in all chemical industrial sectors are encouraged. The organizers particularly want to encourage your participation in creating a forum to share techniques and experiences from across the chemical industry. Please provide initial expressions of interest with paper subjects to: Stuart T. Arm, Radiochemical Science and Engineering Group, Environmental Technology Division, Battelle Pacific Northwest Division, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, stuart.arm@pnl.gov; or to Harish Santhanam harish.k.santhanam@pharmacia.com

Separations for the Nuclear Fuel Cycle in the 21st Century
The focus of this symposium is on assessing the current state-of-the art in nuclear separations science and technology, and on identifying directions research and development should take to enable nuclear separations to meet 21st Century demands for waste minimization, environment protection, safety and security. Future options must respond to considerations like environmental sustainability and nuclear non-proliferation while at the same time improving separation efficiency. Analysis of the entire fuel cycle from uranium mining and plutonium production to fuel fabrication, actinide recycle/transmutation and waste disposal is needed. Papers related to all aspects of nuclear fuel cycle but particularly separations are solicited in this call. Potential topical subjects include new methodologies in uranium mining and processing, recycling of uranium and plutonium from irradiated fuel, recovery of useful isotopes from irradiated fuel, and partitioning and transmutation of long-lived isotopes in high-level waste. We also seek papers on the subject of the impact of separations on nuclear waste repositories. For more information, contact one of the symposium organizers: Gregg J. Lumetta, Radiochemical Processing Group, Pacific Northwest National Laboratory, P.O. Box 999, MSIN P7-22, Richland, WA 99352, gregg.lumetta@pnl.gov; Kenneth L. Nash, Chemistry Division, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, klnash@anl.gov; Sue Clark, Washington State University, Department of Chemistry, PO Box 644630, Pullman, WA 99164-4630; s_clark@wsu.edu; Judah I. Friese, Pacific Northwest National > Laboratory, PO Box 999, MSIN P8-50, Richland, > WA 99352; Judah.Friese@pnl.gov;