Effect of hot pressing additives on the leachability of hot pressed sodium hydrous titanium oxide

Journal Article · Tue Jan 01 00:00:00 EST 1980 · Nucl. Chem. Waste Manage.; (United States)

OSTI ID:5296905

Valentine, T M; Sambell, R A.J.

Sodium hydrous titanium oxide is an ion exchange resin which can be used for immobilizing medium level waste (MLW) liquors. When hot pressed, it undergoes conversion to a ceramic. Three low melting point materials (borax, bismuth trioxide, and a mixture of PbO/CuO) were added to the (Na)HTiO and the effect that each of these had on aiding densification was assessed. Hot pressing temperature, applied pressure, and percentage addition of hot pressing aid were varied. Percentage open porosity, flexural strength, and leachability were measured. There was a linear relationship between the percentage open porosity and the logarithm of the leach rate for a constant percentage addition of each additive.

• Research Organization: UKAEA, Harwell, Oxfs, Engl
• OSTI ID: 5296905
• Journal Information: Nucl. Chem. Waste Manage.; (United States), Vol. 2:2
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
ION EXCHANGE MATERIALS
LEACHING
TITANIUM OXIDES
HOT PRESSING
ADDITIVES
BISMUTH OXIDES
BORAX
COPPER OXIDES
INTERMEDIATE-LEVEL RADIOACTIVE WASTES
LEAD OXIDES
RADIOACTIVE WASTE PROCESSING
RESINS
SODIUM
SOLID WASTES
ALKALI METAL COMPOUNDS
ALKALI METALS
BISMUTH COMPOUNDS
BORATES
BORON COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
DISSOLUTION
ELEMENTS
FABRICATION
LEAD COMPOUNDS
MANAGEMENT
MATERIALS
MATERIALS WORKING
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
PRESSING
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
SEPARATION PROCESSES
SODIUM COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052002* - Nuclear Fuels- Waste Disposal & Storage
360205 - Ceramics
Cermets
& Refractories- Corrosion & Erosion