Patent ID: 9689056
Date: 2017-06-27
CPC Classifications: C22B

Claim:
1. A process for extracting uranium from saline acidic uranium, chloride, iron (III) and sulphate containing solution having >5 g/L chloride, comprising: a. contacting the solution with an organic phase containing a trialkylphosphine oxide (TAPO) as an extractant to form a uranium loaded organic phase; b. scrubbing the uranium loaded organic phase with a scrubbing solution comprising a sulphuric acid based aqueous solution to remove any impurities and to form a scrubbed organic phase; c. stripping uranium from the scrubbed organic phase with a concentrated sulphate solution having a sulphate concentration greater than IM to produce an aqueous uranium strip solution; and d. precipitating a uranium product from the aqueous uranium strip solution.