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

Fox, K. M.¹  Johnson, F. C.¹ 

[1] Savannah River Site (SRS), Aiken, SC (United States)

关键词: HIGH-LEVEL RADIOACTIVE WASTES;    SPINELS;    GLASS;    CRYSTALLIZATION;    CRYSTALS;    DISSOLUTION;    ADDITIVES;    SIMULATION;    SODIUM OXIDES;    SILICON OXIDES;   

DOI  :  10.2172/1228056
RP-ID  :  SRNL-STI--2015-00575
PID  :  OSTI ID: 1228056
Others  :  TRN: US1600019

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

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).