Process for preparing inorganic particulate adsorbent and process for treating nuclear reactor core-circulating water

Patent · Tue Aug 04 04:00:00 EDT 1981

OSTI ID:5776994

Fujita, K; Takeuchi, S; Uno, S; Yamashita, H

An inorganic particulate adsorbent of a titania-alumina is described for treating a superheated water containing radioactive materials such as cobalt ions, which is free from release of corrosive impruities, and which has a high adsorption capacity of radioactive materials and a high mechanical strength is prepared by hydrolyzing a titanium alkoxide and an aluminum alkoxide, thereby forming a hydrous titanium oxide and a hydrous aluminum oxide, respectively; precalcining the hydrous titanium oxide and aluminum oxide, mixing and molding the resulting titania and alumina into a particulate mixture thereof having a titania mole fraction of 0.2 to 0.9, and calcining the particulate mixture at 500/sup 0/-700/sup 0/C. This absorbent is effectively used in treat boiling water-type nuclear reactor core-circulating water to remove radioactive substances therefrom.

• Assignee: Hitachi Ltd (Japan)
• Patent Number(s): US 4282092
• OSTI ID: 5776994
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
ADSORBENTS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
BWR TYPE REACTORS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL COMPOSITION
CHEMISTRY
CLEANING
COBALT IONS
COOLING SYSTEMS
DECONTAMINATION
ENERGY SYSTEMS
HEATING
HYDROGEN COMPOUNDS
IONS
LIQUID WASTES
MANAGEMENT
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PRIMARY COOLANT CIRCUITS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
REMOVAL
SUPERHEATING
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE WATER
WASTES
WATER
WATER CHEMISTRY
WATER COOLED REACTORS
WATER MODERATED REACTORS