JPS5698491A - Operating method of aluminum electrolytic cell - Google Patents

Operating method of aluminum electrolytic cell

Info

Publication number
JPS5698491A
JPS5698491A JP71380A JP71380A JPS5698491A JP S5698491 A JPS5698491 A JP S5698491A JP 71380 A JP71380 A JP 71380A JP 71380 A JP71380 A JP 71380A JP S5698491 A JPS5698491 A JP S5698491A
Authority
JP
Japan
Prior art keywords
power
initiation
anode effect
alumina
supplied
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.)
Pending
Application number
JP71380A
Other languages
Japanese (ja)
Inventor
Yuzo Seo
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.)
Mitsubishi Light Metal Industries Ltd
Original Assignee
Mitsubishi Light Metal Industries 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 Mitsubishi Light Metal Industries Ltd filed Critical Mitsubishi Light Metal Industries Ltd
Priority to JP71380A priority Critical patent/JPS5698491A/en
Publication of JPS5698491A publication Critical patent/JPS5698491A/en
Pending legal-status Critical Current

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  • Electrolytic Production Of Metals (AREA)

Abstract

PURPOSE: To perform an efficient and stable operation with reduced unit-consumption of power by a method wherein alumina supply is started with the estimation of anode effect initiation or a required additional power is superposed on the regular power supply within a short period after the initiation of anode effect.
CONSTITUTION: An operation is performed to reduce unit consumption for Al by maintaining a cell voltage nearly constant and as low as practical at regular time of operation. The operation necessarily reduces the electrolytic cell temperature and slows down the dissoving speed of supplied alumina into the cell. Thus, when anode effect is predicted, its initiation must be prevented by adding alumina. This is done so that at the same time as the alumina supply or within 3hr after the initiation of anode effect, power as shown in the equation below, if positive, is superposed to be supplied to the cell. W=A-B (wherein, W: added power, A: control target power, 0.2W1.0 times the power equivalent to calorific value required to dissolve alumina supplied to suppress or stop the anode effect, and B: power supplied excessively from the regular condition during the initiation of anode effect to its suppression.).
COPYRIGHT: (C)1981,JPO&Japio
JP71380A 1980-01-08 1980-01-08 Operating method of aluminum electrolytic cell Pending JPS5698491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP71380A JPS5698491A (en) 1980-01-08 1980-01-08 Operating method of aluminum electrolytic cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP71380A JPS5698491A (en) 1980-01-08 1980-01-08 Operating method of aluminum electrolytic cell

Publications (1)

Publication Number Publication Date
JPS5698491A true JPS5698491A (en) 1981-08-07

Family

ID=11481396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP71380A Pending JPS5698491A (en) 1980-01-08 1980-01-08 Operating method of aluminum electrolytic cell

Country Status (1)

Country Link
JP (1) JPS5698491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109055987A (en) * 2018-10-24 2018-12-21 中国铝业股份有限公司 A kind of method that aluminium cell seat pocket stops slot

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109055987A (en) * 2018-10-24 2018-12-21 中国铝业股份有限公司 A kind of method that aluminium cell seat pocket stops slot
CN109055987B (en) * 2018-10-24 2020-10-27 中国铝业股份有限公司 Method for sitting and stopping aluminum electrolytic cell

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