Tuesday, August 28
Dr. Chris Roberts
Lunch 11:30 - 1:00 pm, Room L1120 - ES&T Building

Uthlaut Professor and Chair
Department of Chemical Engineering
Auburn University
Dr. Roberts works in Supercritical fluid (SCF) technologies, nano-materials synthesis and processing in SCFs, heterogeneous and homogeneous reactions in SCFs, microemulsions in SCFs, molecular thermodynamics and high pressure. http://www.eng.auburn.edu/department/che/roberts/

Wednesday, September 12
Dr. Timothy C. Frank
Lunch 11:30 - 1:00 pm, Room L1120 - ES&T Building

Scientist and Sr. Technical Leader
The Dow Chemical Company, Midland , MI
Dr. Frank is currently the technical leader for a group of 25 engineers involved in separations R&D, with responsibility for management of specialty separations projects within Dow's Core R&D function, as well as management of a pilot-plant research facility. Over the years, he has participated in the commercialization of a wide range of separation technologies including many applications of liquid-liquid extraction, distillation, pressure-swing adsorption, and crystallization from the melt and from solution. He is a member of the team presented with a Presidential Green Challenge Award by the US Environmental Protection Agency in 1999, for development and commercialization of spinosad, a low-risk insecticide. 

Seminar
Wednesday, September 12
4:00 p.m., Room L1255 ES&T Building

"An Overview of Separation Process Development at The Dow Chemical Company"

This presentation will review work processes employed at Dow for development, implementation, and improvement of separations technology. The talk will briefly introduce the Engineering & Process Sciences Laboratory at Dow, describe typical projects in general terms, and then focus on several examples involving the use of glycol ethers such as 2-butoxyethanol (commonly called ethylene glycol n-butyl ether) and 1-butoxy-2-propanol (commonly called propylene glycol n-butyl ether). The examples will include the application of glycol ethers for selective release of recombinant proteins from the periplasm of gram-negative bacteria for improved recovery of enzymes and therapeutic proteins made via bacterial cultures. The use of liquid-liquid extraction to recover glycol ether residues from aqueous effluent streams also will be described, including application of the MOSCED activity coefficient correlation for screening candidate solvents.

Wednesday, September 26
Dr. Joan Brennecke
Lunch 11:30 - 1:00 pm, Room L1120 - ES&T Building

Keating-Crawford Professor
Department of Chemical and Biomolecular Engineering
Notre Dame University
Joan's interests are in the development of environmentally benign solvents and processes. Of particular interest is the use of ionic liquids and carbon dioxide for extractions, separations, and reactions. See http://www.nd.edu/~thrils/

Seminar
4:00 p.m., Room L1255 ES&T Building

Title: TBN

Dr. Ron Chance
Professor of the Practice