JPS55152193A - Preparation of aluminum - Google Patents

Preparation of aluminum

Info

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
Application number
JP5848679A
Other languages
Japanese (ja)
Other versions
JPS6144958B2 (en
Inventor
Nobuatsu Watanabe
Osamu Takagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Aluminum Smelting Co
Toyo Tanso Co Ltd
Original Assignee
Sumitomo Aluminum Smelting Co
Toyo Tanso Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Aluminum Smelting Co, Toyo Tanso Co Ltd filed Critical Sumitomo Aluminum Smelting Co
Priority to JP5848679A priority Critical patent/JPS55152193A/en
Publication of JPS55152193A publication Critical patent/JPS55152193A/en
Publication of JPS6144958B2 publication Critical patent/JPS6144958B2/ja
Granted legal-status Critical Current

Links

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  • 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
JP5848679A 1979-05-11 1979-05-11 Preparation of aluminum Granted JPS55152193A (en)

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)

Also Published As

Publication number Publication date
JPS6144958B2 (en) 1986-10-06

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