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Title: Hydrogen peroxide modified sodium titanates with improved sorption capabilities

Patent ·
OSTI ID:960217
 [1];  [2]
  1. Albuquerque, NM
  2. North Augusta, SC
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The sorption capabilities (e.g., kinetics, selectivity, capacity) of the baseline monosodium titanate (MST) sorbent material currently being used to sequester Sr-90 and alpha-emitting radioisotopes at the Savannah River Site are significantly improved when treated with hydrogen peroxide; either during the original synthesis of MST, or, as a post-treatment step after the MST has been synthesized. It is expected that these peroxide-modified MST sorbent materials will have significantly improved sorption capabilities for non-radioactive cations found in industrial processes and waste streams.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporaion (Albuquerque, NM)
Patent Number(s):
7,494,640
Application Number:
11/169,859
OSTI ID:
960217
Country of Publication:
United States
Language:
English

References (9)

Radiation chemistry of aqueous solutions of actinides journal September 1997
Ti-Peroxo Species in the TS-1/H 2 O 2 /H 2 O System journal March 2004
Strontium and Actinide Removal Testing with Monosodium Titanate and Other Sorbents report February 2002
In Situ FTIR Studies of Primary Intermediates of Photocatalytic Reactions on Nanocrystalline TiO 2 Films in Contact with Aqueous Solutions journal June 2003
Preparation and Use of Dried Monosodium Titanate report March 2004
Strategic Design and Optimization of Inorganic Sorbents for Cesium, Strontium and Actinides report June 2002
Evaluation of Alternate Materials and Methods for Strontium and Alpha Removal from Savannah River Site High-Level Waste Solutions report November 2000
Tailoring Inorganic Sorbents for SRS Strontium and Actinide Separations: Optimized Monosodium Titanate and Pharmacosiderite Phase I Final Report report July 2004
Primary Intermediates of Oxygen Photoevolution Reaction on TiO 2 (Rutile) Particles, Revealed by in Situ FTIR Absorption and Photoluminescence Measurements journal February 2004

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