Apparatus for copper drossing of lead bullion

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1. APPARATUS FOR USE IN CONTINUOUSLY SEPARATING COPPER FROM LEAD BULLION COMPRISING:

A FURNACE ADAPTED TO HOLD A BATH OF MOLTEN BULLION, AT LEAST ONE PARTITION WALL EXTENDING UPWARDLY FROM THE BOTTOM OF THE FURNACE AND HAVING ITS UPPER END DISPOSED SUBSTANTIALLY BELOW THE OPERATING LEVEL OF THE MOLTEN BULLION, SAID PARTITION WALL SUB-DIVIDING THE LOWER PART OF THE FURNACE INTO A PLURALITY OF COMPARTMENTS COMPRISING A MIXING COMPARTMENT AND AN INFLOW COMPARTMENT, A PUMP OPERABLE TO EFFECT THE WITHDRAWAL OF MOLTEN BULLION FROM THE MIXING COMPARTMENT, MEANS FOR COOLING THE THUS WITHDRAWN BULLION TO A TEMPERATURE LOWER THAN 400*C. BUT ABOVE THE MELTING POINT THEREOF, MEANS FOR RETURNING AT LEAST THE MAJOR PART OF THE THUS COOLED MOLTEN BULLION TO THE SAID INFLOW COMPARTMENT AND, MEANS FOR CONTINUOUSLY DISCHARGING A PROPORTION OF SAID COOLED MOLTEN BULLION FROM THE SYSTEM.

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1. APPARATUS FOR USE IN CONTINUOUSLY SEPARATING COPPER FROM LEAD BULLION COMPRISING:
- A FURNACE ADAPTED TO HOLD A BATH OF MOLTEN BULLION, AT LEAST ONE PARTITION WALL EXTENDING UPWARDLY FROM THE BOTTOM OF THE FURNACE AND HAVING ITS UPPER END DISPOSED SUBSTANTIALLY BELOW THE OPERATING LEVEL OF THE MOLTEN BULLION, SAID PARTITION WALL SUB-DIVIDING THE LOWER PART OF THE FURNACE INTO A PLURALITY OF COMPARTMENTS COMPRISING A MIXING COMPARTMENT AND AN INFLOW COMPARTMENT, A PUMP OPERABLE TO EFFECT THE WITHDRAWAL OF MOLTEN BULLION FROM THE MIXING COMPARTMENT, MEANS FOR COOLING THE THUS WITHDRAWN BULLION TO A TEMPERATURE LOWER THAN 400*C. BUT ABOVE THE MELTING POINT THEREOF, MEANS FOR RETURNING AT LEAST THE MAJOR PART OF THE THUS COOLED MOLTEN BULLION TO THE SAID INFLOW COMPARTMENT AND, MEANS FOR CONTINUOUSLY DISCHARGING A PROPORTION OF SAID COOLED MOLTEN BULLION FROM THE SYSTEM.

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