E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/30
E21B 43/28 (2006.01)
Patent
CA 1102680
ABSTRACT OF THE DISCLOSURE A process is provided for restoring an ore deposit after uranium solution mining using ammonium carbonate leaching solutions has ceased. The process involves flushing the deposit with an aqueous solution of a potassium salt during which potassium ions exchange with ammonium ions remaining in the deposit. The ammonium-containing flushing solution is withdrawn from the deposit for disposal.
315023
Devries Frederick W.
Lawes Bernard C.
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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