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MOLTEN-SALT REACTOR PROGRAM - page 50 / 122

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5. CHEMISTRY122

Chemistry of the MSRE122

Analyses of Flush, Fuel, and Coolant Salts122

Examination of Materials from the MSRE Off-Gas System124

Uranium-Bearing Crystals in Frozen Fuel128

Physical Chemistry of Fluoride Melts128

Vapor Pressure of Fluoride Melts128

Methods for Predicting Density, Specific Heat,

and Thermal Conductivity in Molten Fluorides130

Oxide Solubilities in MSRE Flush Salt, Fuel Salt, and Their Mixtures133

Separations in Molten Fluorides136

Evaporative-Distillation Studies on Molten-Salt Fuel Components136

Effective Activity Coefficients by Evaporative Distillation139

Extraction of Rare Earths from Molten Fluorides into Molten Metals141

Removal of Protactinium145

Radiation Chemistry152

In-Pile Molten-Salt Irradiation Experiment152

Development and Evaluation of Methods for the Analysis of the MSRE Fuel154

Determination of Oxide in MSRE Fuel154

Voltammetric Determination of Ionic Iron and Nickel in Molten MSRE Fuel162

Development and Evaluation of Equipment and Procedures for

Analyzing Radioactive MSRE Salt Samples165

Sample Analyses167

Quality Control Program168

6. MOLTEN-SALT BREEDER REACTOR DESIGN STUDIES172

MSBR Plant Design172

Flowsheet172

Reactor Design174

Fuel Processing177

Heat Exchange and Steam Systems181

Capital Cost Estimates182

Reactor Power Plant182

Fuel Plant Recycle182

Nuclear Performance and Fuel Cycle Analyses186

Analysis Procedures186

Basic Assumptions186

Nuclear Design Analysis189

Power Cost and Fuel Utilization Characteristics191

7. MOLTEN-SALT REACTOR PROCESSING STUDIES193

Semi-continuous Distillation194

Fuel Reconstitution199

Continuous Fluorination of a Molten Salt202

Chromium Fluoride Trapping202

Design and Evaluation Study203

Description of Fuel Process204

Description of Fertile Process208

Waste Treatment208

Off-Gas Treatment209

Summary of Capital and Operating Costs209

Processing Cost210

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