Equipment and method for electrolytic recovery of metal
AssigneeOutotec Oyj
InventorsVille Nieminen, Lauri Palmu, Henri Virtanen
Life of this patent
Estimating the term…
Abstract
The invention concerns a system of gas ducts (6) for transporting gas, for example, into electrolytic equipment, in connection with which there are means (13) for taking at least gas into the system of gas ducts, whereby there is a suitable number of gas supply holes (7) in the system of gas ducts in a wall (19) limiting the system of gas ducts, whereby the material, such as gas, flowing in the system of gas ducts (6) is prevented at least in part from passing through the wall (19) of the system of gas ducts (6). The invention also concerns equipment and a method for electrolytic recovery of metal, such as copper.
Claims18
A system of gas ducts (6) for transporting gas, for example, into electrolysis equipment, in connection with which there are means (13) for taking at least gas to the system of gas ducts, whereby there is a suitable number of gas supply holes (7) in the system of gas ducts in a wall (19) limiting the system of gas ducts, characterized in that the material, such as gas (8), flowing in the system of gas ducts (6) is prevented at least in part from flowing through the wall (19) of the system of gas ducts (6), when the gas bubbles are allowed to discharge directly upwards from the gas supply holes (7).
10-14. (canceled)
Method for electrolytic recovery of metal, such as copper, whereby anodes (9) and cathodes (4) are placed in turns into a basin (2) into an electrolyte solution (3) containing metal ions, whereby gas bubbles (8) are spread out into the electrolyte solution, characterized in that gas bubbles are spread out on to the surfaces of the cathodes (4) from a system of gas ducts (6), in which the passage of gas through a wall (19) of the system of gas ducts is prevented in part the gas is guided to travel along through gas supply holes (7) in the wall (19) of the system of gas ducts (6) from the part located on the side of the cathode (4).
Dependencies are inferred from the claim text.