Operating Mode
Continuous or Semi-Continuous
Host Equipment
Emissions Port (Vent)
Yes
Special Input/Output Ports
Yes
A Continuous Stoichiometric Reaction Procedure in an Electrowinning Cell can be created by selecting the following menu option:
Unit Procedures } Continuous Reaction } Stoichiometric } in an Electrowinning Cell
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Operating Mode |
Continuous or Semi-Continuous |
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Host Equipment |
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Emissions Port (Vent) |
Yes |
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Special Input/Output Ports |
Yes |
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This procedure is used to represent an electrowinning reaction that takes place in an Electrowinning Cell and is described by stoichiometry. Electrowinning, also known as electrolysis, is a typical operation of hydrometallurgical engineering that is used to reduce (win) a metal ion (from the solution of the ore that contains the metal) onto a cathode at the expense of externally-provided electric current. The reduction of an electroactive species onto the cathode is accompanied by the oxidation of one or more species at the anode. The Electrowinning operation is performed in electrolytic cells, such as the Electrowinning Cell.
● Feed: the designated input port for the feed stream (electrolyte solution).
● Additives: the designated input port for the additives (optional).
● Vent: the designated output port for the vent.
● Cathode Product: the designated output port for the cathode product (optional).
● Anode Product: the designated output port for the anode product (optional).
● Spent Electrolyte: the designated output port for the spent electrolyte.
The following operation types are currently supported in the context of this unit procedure:
● React (Stoichiometric), see Continuous Stoichiometric Reaction in an Electrowinning Cell
● CIP, see Clean-In-Place (CIP)
● Hold, see Holding
● SIP, see Steam-In-Place (SIP)
Note that operations CIP, Hold, and SIP are only available in semi-continuous operating mode.