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Title: PREPARATION OF HIGH-DENSITY, COMPACTIBLE THORIUM OXIDE PARTICLES

Abstract

A method is given for preparing millimeter-size, highdensity thorium oxide particles suitable for fabrication into nuclear reactor feel elements by means of vibratory compaction. A thorium oxide gel containing 3.7 to 7 weight per cent residual volatile nitrate and water is prepared by drying a thorium oxide sol. The gel is then slowly heated to a temperature of about 450DEC, and the resulting gel fragments are calcined. The starting sol is prepared by repeated dispersion of oxalate-source thorium oxide in a nitrate system or by dispersion of steam-denitrated thorium oxide in water. (AEC)

Inventors:
; ; ;
Issue Date:
OSTI Identifier:
4791072
Patent Number(s):
3035895
Assignee:
U.S. Atomic Energy Commission
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
NSA Number:
NSA-16-016404
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-62
Country of Publication:
United States
Language:
English
Subject:
CHEMISTRY; CALCINATION; COLLOIDS; COMPACTING; DENSITY; DISPERSIONS; EVAPORATION; FUEL ELEMENTS; GRAIN SIZE; HEATING; NITRATES; OSCILLATIONS; OXALATES; PREPARATION; PYROLYSIS; REACTORS; RESIDUES; TEMPERATURE; THORIUM OXIDES; VOLATILITY; WATER

Citation Formats

McCorkle, K H, Kleinsteuber, A T, Schilling, C E, and Dean, O C. PREPARATION OF HIGH-DENSITY, COMPACTIBLE THORIUM OXIDE PARTICLES. United States: N. p., 1962. Web.
McCorkle, K H, Kleinsteuber, A T, Schilling, C E, & Dean, O C. PREPARATION OF HIGH-DENSITY, COMPACTIBLE THORIUM OXIDE PARTICLES. United States.
McCorkle, K H, Kleinsteuber, A T, Schilling, C E, and Dean, O C. Tue . "PREPARATION OF HIGH-DENSITY, COMPACTIBLE THORIUM OXIDE PARTICLES". United States.
@article{osti_4791072,
title = {PREPARATION OF HIGH-DENSITY, COMPACTIBLE THORIUM OXIDE PARTICLES},
author = {McCorkle, K H and Kleinsteuber, A T and Schilling, C E and Dean, O C},
abstractNote = {A method is given for preparing millimeter-size, highdensity thorium oxide particles suitable for fabrication into nuclear reactor feel elements by means of vibratory compaction. A thorium oxide gel containing 3.7 to 7 weight per cent residual volatile nitrate and water is prepared by drying a thorium oxide sol. The gel is then slowly heated to a temperature of about 450DEC, and the resulting gel fragments are calcined. The starting sol is prepared by repeated dispersion of oxalate-source thorium oxide in a nitrate system or by dispersion of steam-denitrated thorium oxide in water. (AEC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1962},
month = {5}
}