Process for recovery of mineral values from subterranean formations
Creators
Description
The present invention relates to the in situ recovery of mineral values, particularly uranium, from subterranean formations that contain sulfur in organic or inorganic forms where the sulfur causes premature deletion of an oxidant and reduction in permeability of the formation. The adverse effects due to the presence of the sulfur in the formation are substantially reduced in accordance with the present invention by treating the formations with an aqueous solution of iron-complexing agent and then oxident to preferentially oxidize and solubilize at least a portion of the sulfur in the formation. The present process may be applied either as a pre-treatment process to be followed by a leaching process or simultaneously with the leaching process
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Publishing Information
- Imprint Pagination
- v p.
- IPC:
- Int. Cl. C01G 43/00; C22B 60/02.
- IPC
- Int. Cl. C01G 43/00; C22B 60/02.
- Patent number
- US patent document 4,489,042/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 16077333
- Subject category
- S11: NUCLEAR FUEL CYCLE AND FUEL MATERIALS;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- AQUEOUS SOLUTIONS; IRON COMPLEXES; LEACHING; PERMEABILITY; SOLUBILITY; SOLUTION MINING; SULFUR; URANIUM ORES
- Descriptors DEC
- COMPLEXES; DISPERSIONS; DISSOLUTION; ELEMENTS; HOMOGENEOUS MIXTURES; IN-SITU PROCESSING; MINING; MIXTURES; NONMETALS; ORE PROCESSING; ORES; SEPARATION PROCESSES; SOLUTIONS; TRANSITION ELEMENT COMPLEXES
Optional Information
- Notes
- PAT-APPL-335296.