JPS55152193A - Preparation of aluminum - Google Patents
Preparation of aluminumInfo
- Publication number
- JPS55152193A JPS55152193A JP5848679A JP5848679A JPS55152193A JP S55152193 A JPS55152193 A JP S55152193A JP 5848679 A JP5848679 A JP 5848679A JP 5848679 A JP5848679 A JP 5848679A JP S55152193 A JPS55152193 A JP S55152193A
- Authority
- JP
- Japan
- Prior art keywords
- anode
- prebake
- current density
- carbonaceous
- type electrolytic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Electrolytic Production Of Metals (AREA)
Abstract
PURPOSE: To reduce the frequency of anode effect occurrence by a method wherein carbonaceous block consisting of carbonaceous material having an anisotropic ratio of resistivity below a specified value is used as the anode of a prebake type electrolytic furnace.
CONSTITUTION: In the prebake type electrolytic furnace, the anode uses carbonaceous block consisting of carbon material having preferably isotropy, or anisotropy ratio of resistivity less than 1.2 in electrolytsis of Al2O3 dissolved in molten salt essentially consisting of cryolite. This drastically increases its critical current density and therefore reduces the formation of graphite fluoride layer on the anode surface, so that the electrode voltage uprise can be prevented. As such, the process permits a stable operation to be maintained under high current density.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5848679A JPS55152193A (en) | 1979-05-11 | 1979-05-11 | Preparation of aluminum |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5848679A JPS55152193A (en) | 1979-05-11 | 1979-05-11 | Preparation of aluminum |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55152193A true JPS55152193A (en) | 1980-11-27 |
JPS6144958B2 JPS6144958B2 (en) | 1986-10-06 |
Family
ID=13085751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5848679A Granted JPS55152193A (en) | 1979-05-11 | 1979-05-11 | Preparation of aluminum |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55152193A (en) |
-
1979
- 1979-05-11 JP JP5848679A patent/JPS55152193A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6144958B2 (en) | 1986-10-06 |
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