Silicotitanate molecular sieve and condensed phases

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874883

Nenoff, Tina M ^[1]; Nyman, May D ^[1]

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1. Albuquerque, NM

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.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• DOE Contract Number: AC04-94AL85000
• Assignee: The United States of America as represented by the Department of Energy (Washington, DC)
• Patent Number(s): US 6482380
• OSTI ID: 874883
• Country of Publication: United States
• Language: English

Related Subjects

silicotitanate
molecular
sieve
condensed
phases
microporous
crystalline
material
formula
cssub3
tisisub3
osub95cndot3hsub2
hydrothermally
phase
cssub2
tisisub6
osub15
disclosed
adsorb
divalent
radionuclides
industrial
metals
chromium
nickel
lead
copper
cobalt
zinc
cadmium
barium
mercury
aqueous
hydrocarbon
solutions
adsorbed
metal
leached
recovery
purposes
radiation
resistant
structurally
chemically
stable
serve
storage
waste
form
waste form
condensed phase
/423/210/501/