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US 8,893,893 B2Granted
Method of froth flotation control
AssigneeImperial Innovations Limited
InventorJohannes Jacobus Le Roux Cilliers
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Abstract
A method of controlling operation of a froth floatation cell for separating substances comprises introducing gas into liquid in the cell, creating a froth controlling gas flow rate into the cell in order to maximize gas recovery for the cell.
Claims14
A method of controlling operation of a froth flotation cell for separating substances, the method comprising:
- introducing gas into liquid in the cell and creating a froth, and controlling the cell by a closed loop process, said closed loop process comprising the step of continuously monitoring a gas recovery for the cell based on current operating conditions of the cell by monitoring overflow of froth from the cell and deriving therefrom the gas recovery for the cell in operation, and said closed loop process further comprising the step of controlling a gas flow rate into the cell solely in order to maximize the gas recovery for the cell.
A method of controlling operation of a froth flotation cell for separating substances, the method comprising:
- introducing gas into liquid in the cell and creating a froth;
- controlling the cell by a closed loop process, said closed loop process comprising:
- continuously monitoring overflow of the froth from the cell and deriving therefrom a gas recovery for the cell in operation based on current operating conditions of the cell;
- and
- controlling a gas flow rate into the cell based on the monitored overflow of the froth exclusively to maximize the gas recovery for the cell, the gas flow rate not being controlled based on any parameter other than the gas recovery.
2 more elements
Dependencies are inferred from the claim text.