Published May 5, 1981 | Version v1
Patent Metadata-only

Method of reducing radioactive waste and of recovering uranium from it

Creators

Description

A method is described for reducing the volume of radioactive waste produced during the solution mining of uranium and for recovering uranium from it. The recovery leach, which contains uranium in solution and is supersaturated with calcium carbonate, is treated with bicarbonate and made basic which precipitates calcium carbonate and some of the uranium. The precipitated calcium carbonate is dissolved with acid and the uranium in the solution is removed by extraction or precipitation. The remaining solution is contacted with sulfate ions and barium or strontium ions to precipitate baso4.Raso4 or srso4.Raso4, the principal radioactive constituent in the solid waste product

Availability note (English)

U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.

Additional details

Additional titles

Augmented title (English)
Patent

Publishing Information

Imprint Pagination
v p.
Patent number
US patent document 4,265,861/A/

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
13698737
Subject category
S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS; S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CALCIUM CARBONATES; PRECIPITATION; RADIOACTIVE WASTE PROCESSING; RADIUM; RADIUM SULFATES; SOLUTION MINING; SOLVENT EXTRACTION; URANIUM; URANIUM ORES
Descriptors DEC
ACTINIDES; ALKALINE EARTH METAL COMPOUNDS; ALKALINE EARTH METALS; CALCIUM COMPOUNDS; CARBON COMPOUNDS; CARBONATES; ELEMENTS; IN-SITU PROCESSING; MANAGEMENT; METALS; MINING; ORE PROCESSING; ORES; OXYGEN COMPOUNDS; RADIUM COMPOUNDS; SEPARATION PROCESSES; SULFATES; SULFUR COMPOUNDS; WASTE MANAGEMENT; WASTE PROCESSING