Effect of sodium silicate on leaching uranium ores with hydrogen peroxide

Journal Article · Sun Jan 01 04:00:00 EST 1978 · In Situ; (United States)

OSTI ID:6553409

Lawes, B C

Hydrogen peroxide has been widely used as an oxidant for in-place solution mining of low-grade uranium ores with ammonium bicarbonate. Recent laboratory column leaching experiments have shown that hydrogen peroxide--under accelerated flow conditions at least--appears to contribute to a partial loss of permeability, which varies with different ores. However, when small quantities of sodium silicate are added to the leach, the loss of permeability is largely prevented, or even reversed. With some ores, the silicate also helped to stabilize hydrogen peroxide against decomposition.

• Research Organization: E.I. du Pont de Nemours and Co., Inc., Wilmington, DE
• OSTI ID: 6553409
• Journal Information: In Situ; (United States), Journal Name: In Situ; (United States) Vol. 2:2; ISSN ISOMD
• Country of Publication: United States
• Language: English

Related Subjects

050300* -- Nuclear Fuels-- Mining-- (-1987)
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
ACID CARBONATES
ALKALI METAL COMPOUNDS
AMMONIUM COMPOUNDS
DISSOLUTION
HYDROGEN COMPOUNDS
HYDROGEN PEROXIDE
LEACHING
MINING
ORES
OXYGEN COMPOUNDS
PERMEABILITY
PEROXIDES
SEPARATION PROCESSES
SILICATES
SILICON COMPOUNDS
SODIUM COMPOUNDS
SODIUM SILICATES
SOLUTION MINING
URANIUM ORES