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Title: Spinel dissolution via addition of glass forming chemicals. Results of preliminary experiments

Increased loading of high level waste in glass can lead to crystallization within the glass. Some crystalline species, such as spinel, have no practical impact on the chemical durability of the glass, and therefore may be acceptable from both a processing and a product performance standpoint. In order to operate a melter with a controlled amount of crystallization, options must be developed for remediating an unacceptable accumulation of crystals. This report describes preliminary experiments designed to evaluate the ability to dissolve spinel crystals in simulated waste glass melts via the addition of glass forming chemicals (GFCs).
Authors:
 [1] ;  [1]
  1. Savannah River Site (SRS), Aiken, SC (United States)
Publication Date:
OSTI Identifier:
1228056
Report Number(s):
SRNL-STI--2015-00575
TRN: US1600019
DOE Contract Number:
AC09-08SR22470
Resource Type:
Technical Report
Research Org:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; HIGH-LEVEL RADIOACTIVE WASTES; SPINELS; GLASS; CRYSTALLIZATION; CRYSTALS; DISSOLUTION; ADDITIVES; SIMULATION; SODIUM OXIDES; SILICON OXIDES