C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
362/1, 53/369
C22B 3/00 (2006.01) B03B 9/00 (2006.01) B03D 1/00 (2006.01) C22B 9/00 (2006.01)
Patent
CA 1085172
ABSTRACT A process for recovering metallic values by put- ing the values into solution and separating undesired min- eral matter from the solution using countercurrent flotation is provided. The process involves leaching metallic values from host rock, conditioning the resultant ore pulp with the required reagents to achieve selective flotation of mineral matter in the metallic values solution, introducing the con- ditioned ore pulp into flotation cells, along with counter- flow of solution from an immediately subsequent flotation step, wherein simultaneous washing and flotation is achieved and the mineral matter is removed leaving a solution of the metallic values. The resultant mineral matter froth product is subjected to subsequent stages of flotation and simultan- eous washing with counterflow of solution removed from each subsequent stage of flotation, water and/or barren solution being used for washing in the final flotation stage. The addition of water and/or barren solution to the final stage is controlled to maintain the desired concentrations of the advancing solutions.
264658
Fluor Utah Inc.
Smart & Biggar
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