Anode structure for copper electrowinning
View Patent ↗An electrode for use in producing copper in either a conventional electrowinning cell or the direct electrowinning cell is provided. The electrode includes a hanger bar and an electrode body coupled with the hanger bar. The electrode body includes at least one conductor rod having a core and an outer layer surrounding the core and a substrate coupled with the conductor rod.
1. An electrode comprising:
a conductor bar having a recessed hole having an interior surface; and
a conductor rod press fit into said recessed hole,
wherein said conductor rod comprises an attachment portion having a core,
wherein an outer surface of said core is in contact with said interior surface
wherein said conductor rod comprises a second portion distal to the attachment portion,
wherein the second portion comprises said core clad in a valve metal.
2. The electrode according to claim 1 , further comprising a substrate coupled to said conductor rod.
3. The electrode according to claim 2 , wherein said substrate comprises titanium.
4. The electrode according to claim 3 , wherein said substrate comprises a titanium mesh.
5. The electrode according to claim 2 , wherein said substrate comprises an electrochemically active coating.
6. The electrode according to claim 5 , wherein said electrochemically active coating comprises a mixture of tantalum oxide and iridium oxide.
7. The electrode according to claim 1 , wherein said core is selected from the group consisting of copper and aluminum.
8. The electrode according to claim 1 , wherein said valve metal is titanium.
9. An electrode comprising:
a conductor bar comprising a recessed hole;
a conductor rod comprising an outer layer and a core, said conductor rod including a proximal portion having an exposed core;
a connection comprising said exposed core disposed in said recessed hole; and
a seal formed by said outer layer and said hanger bar.
10. The electrode according to claim 9 , further comprising a substrate coupled to said conductor rod.
11. The electrode according to claim 10 , wherein said substrate comprises an electrochemically active coating.
12. The electrode according to claim 10 , wherein said substrate comprises titanium.
13. The electrode according to claim 9 , wherein said core comprises copper.
14. The electrode according to claim 9 , wherein said outer layer comprises titanium.
15. The electrode according to claim 9 , wherein said exposed core comprises an annular groove.
16. A method for constructing an electrode comprising:
cladding a core rod with a metallic outer layer to create a conductor rod;
exposing said core at a first end of said conductor rod;
creating a recess in a hanger bar; and
press fitting said first end of said conductor rod into said recess.
17. The method according to claim 16 , further comprising coupling a substrate to said conductor rod.
18. The method according to claim 17 , further comprising coating a portion of a surface of said substrate with an electrochemically active coating.