Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Radioactive metal
Patent
1981-12-28
1984-12-18
Kyle, Deborah L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Radioactive metal
423 3, 4236585, 423 17, 299 4, C22B 6002, C01G 4300, E21B 4328
Patent
active
044890427
ABSTRACT:
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.
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Johnson Warren F.
Savins Joseph G.
Gilman Michael G.
Kyle Deborah L.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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