RESEARCH AND DEVELOPMENT IN THE FIELD OF THORIUM CHEMISTRY AND METALLURGY. VOLUME I. PREPARATION OF ELECTROLYTIC CELL FEED FOR PRODUCTION OF THORIUM METAL. Final Report

Technical Report · Sat Jun 30 04:00:00 EDT 1956

DOI:https://doi.org/10.2172/4301510· OSTI ID:4301510

Fisher, C E; Wyatt, J L

A research and development program in the field of thorium chemistry and metallurgy was conducted. Most of this activity was directed toward the development of techniques for the production of metal by fused salt electrolytic approaches, little effort being proportioned to the preparation of an electrolyte for the process. An aqueous method for the preparation of an anhydrous cell feed was set up and operated for several months. Relatively high operating expense and difficulties with materials of construction prompted the development of a more direct approach for the production of electrolytic cell feed. The system established for cell feed preparation converts thoriumn nitrate to a basic carbonate via the reaction between the nitrate and sodium carbonate, this precipitation being quantitative. Following a suitable filtration and drying operation, the thorium oxycarbonate is converted directly to the chloride by reaction with carbon and chlorine, forming a cell feed containing between 40 and 45% thorium in a molten matrix of sodium and potassium chlorides. The preparation of cell feed by the descrihed process was carried out on a small- tonnage basis, in 1,000-pound batches. The entire process is capable of heing operated on a continuous or semi-continuous basis and presents a commercially feasible approach for the preparation of high quality anhydrous electrolytes suitable for conversion to A.E.C. grade thorium metal by eleetrolytic techniques. A brief description of small-scale research and development experiments leading to the established system also is included. (auth)

• Research Organization: Horizons, Inc., Cleveland
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-000972
• OSTI ID: 4301510
• Report Number(s): SRO-11; HZ-98
• Country of Publication: United States
• Language: English

Related Subjects

CARBON
CHEMICAL REACTIONS
CHLORINE
ELECTROLYTES
ELECTROLYTIC CELLS
EVAPORATION
FILTERS
FUSED SALTS
METALLURGY
POTASSIUM CHLORIDES
PRECIPITATION
PREPARATION
PRODUCTION
QUALITATIVE ANALYSIS
SODIUM CARBONATES
SODIUM CHLORIDES
TECHNOLOGY
THORIUM
THORIUM CARBONATES
THORIUM CHLORIDES
THORIUM NITRATES
WATER