Classifying – separating – and assorting solids – Precedent preparation of items or materials to facilitate... – Selective differentiation
Patent
1979-05-03
1984-04-10
Nozick, Bernard
Classifying, separating, and assorting solids
Precedent preparation of items or materials to facilitate...
Selective differentiation
209166, 209167, 209170, 423 1, 423 29, 423 53, 423 69, 423 51, 423127, 423146, 423106, 423162, 423163, 423 38, 423 41, 423 17, 423 20, B03B 100
Patent
active
044419937
ABSTRACT:
A process for recovering metallic values by putting the values into solution and separating undesired mineral 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 conditioned ore pulp into flotation cells, along with counterflow 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 simultaneous 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.
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Fluor Corporation
Nozick Bernard
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