Tsapatsis, Michael

The good news is that such a filter exists. Recent work by Steven Kuznick and Valerie Bell at Engelhard Corporation in New Jersey and Michael Tsapatsis at the University of Massachusetts has produced a molecular sieve m which the pore (passage) sizes can be adjusted precisely enough to separate N2 molecules from CH4 molecules. The material involved is a special hydrated titanosilicate (contains H20, Ti, Si, O, and Sr) compound... 

Michael Tsapatsis, University of Minnesota, Department of Chemical Engineering and Materials Science 421 Washington Ave. SE, Minneapohs, MN 55455, USA... 

Financial support from NIST ATP Program on Multi-Terabyte Tape Storage is acknowledged. We also thank Christopher Merton in IMATION Co., Prof. Andreas Stein, Prof. Michael Tsapatsis and Prof. William Smyrl in Univ. of Minnesota for valuable discussion and help with property measurements. 

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