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Title: Silicotitanate molecular sieve and condensed phases

Abstract

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.

Inventors:
 [1];  [1]
  1. Albuquerque, NM
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
874883
Patent Number(s):
6482380
Assignee:
The United States of America as represented by the Department of Energy (Washington, DC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01B - NON-METALLIC ELEMENTS
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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/

Citation Formats

Nenoff, Tina M, and Nyman, May D. Silicotitanate molecular sieve and condensed phases. United States: N. p., 2002. Web.
Nenoff, Tina M, & Nyman, May D. Silicotitanate molecular sieve and condensed phases. United States.
Nenoff, Tina M, and Nyman, May D. Tue . "Silicotitanate molecular sieve and condensed phases". United States. https://www.osti.gov/servlets/purl/874883.
@article{osti_874883,
title = {Silicotitanate molecular sieve and condensed phases},
author = {Nenoff, Tina M and Nyman, May D},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {1}
}

Patent:

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