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Silicotitanate molecular sieve and condensed phases

United States Patent

November 19, 2002
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
A new microporous crystalline molecular sieve material having the formula Cs.sub.3 TiSi.sub.3 O.sub.95.cndot.3H.sub.2 O and its hydrothermally condensed phase, Cs.sub.2 TiSi.sub.6 O.sub.15, are disclosed. The microporous material can adsorb divalent ions of radionuclides or other industrial metals such as chromium, nickel, lead, copper, cobalt, zinc, cadmium, barium, and mercury, from aqueous or hydrocarbon solutions. The adsorbed metal ions can be leached out for recovery purposes or the microporous material can be hydrothermally condensed to a radiation resistant, structurally and chemically stable phase which can serve as a storage waste form for radionuclides.
Nenoff; Tina M. (Albuquerque, NM), Nyman; May D. (Albuquerque, NM)
The United States of America as represented by the Department of Energy (Washington, DC)
09/ 717,034
November 22, 2000
The United States Government has rights in this invention pursuant to Contract Number DE-AC04-94AL85000 between the United States Department of Energy and Sandia Corporation.