Chemistry of inorganic compounds – Zeolite
Patent
1995-08-25
1997-01-07
Bell, Mark L.
Chemistry of inorganic compounds
Zeolite
423713, 501134, 501154, 501155, 588 10, 588 14, 588901, C01B 3332, C01B 3906, B09B 300
Patent
active
055914209
ABSTRACT:
The invention is the new material, a ternary compound of cesium, silica, and titania, together with a method of making the ternary compound, cesium titanium silicate pollucite. More specifically, the invention is Cs.sub.2 Ti.sub.2 Si.sub.4 O.sub.13 pollucite which is a new crystalline phase representing a novel class of Ti-containing zeolites. Compositions contain relatively high Cs.sub.2 O and TiO.sub.2 loadings and are durable glass and ceramic materials. The amount of TiO.sub.2 and Cs.sub.2 that can be incorporated into these glasses and crystalline ceramics far exceeds the limits set for the borosilicate high level waste glass.
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Kazumichi Yanagisawa, Mamoru Nishioka, and Nakamichi Yamasaki (Research Laboratory of Hydrothermal Chemistry, Faculty of Science, Kochi University*) "Immobilization of Cesium into Pollucite Structure by Hydrothermal Hot-Pressing"; Journal of Nuclear Science and Technology, 24[1], pp. 51-60; Jan. 1987. *Akebono-cho, Kochi-shi 780).
Battelle (Memorial Institute)
Bell Mark L.
Sample David
Zimmerman Paul W.
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