GB1092992A - Method and apparatus for indicating anode positions - Google Patents

Method and apparatus for indicating anode positions

Info

Publication number
GB1092992A
GB1092992A GB4342/65A GB434265A GB1092992A GB 1092992 A GB1092992 A GB 1092992A GB 4342/65 A GB4342/65 A GB 4342/65A GB 434265 A GB434265 A GB 434265A GB 1092992 A GB1092992 A GB 1092992A
Authority
GB
United Kingdom
Prior art keywords
carbons
cathode
cell
voltage
frequency range
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.)
Expired
Application number
GB4342/65A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1092992A publication Critical patent/GB1092992A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
    • C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
    • C25C3/20—Automatic control or regulation of cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

In the electrolytic reduction of fused salts, e.g. in the production of aluminium from a melt of cryolite and alumina, by applying a D.C. voltage between the cathode and an anode comprising separately adjustable carbons, alternating voltage amplitude variations within a frequency range up to 20 c/s caused by one or more carbons being closer to the cathode than the others are detected and the said one or more carbons are then moved away from the cathode to reduce the voltage variations. Typically in addition to the expanded scale D.C. voltmeter and lamp connected across the cell for indicating the condition of the cell under steady conditions and also when anode effect occurs, there is connected in parallel across the cell an amplifier integrating circuit including a low-pass filter, the circuit converting the alternating voltage to an output current in milliamps proportional to the voltage amplitude in the chosen frequency range. This output current is measured by an expanded scale ammeter which is arranged when a selected value is exceeded to turn on an indicator light, warning of need for adjustment.
GB4342/65A 1964-02-04 1965-02-01 Method and apparatus for indicating anode positions Expired GB1092992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US342505A US3345273A (en) 1964-02-04 1964-02-04 Method of and apparatus for indicating anode positions

Publications (1)

Publication Number Publication Date
GB1092992A true GB1092992A (en) 1967-11-29

Family

ID=23342121

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4342/65A Expired GB1092992A (en) 1964-02-04 1965-02-01 Method and apparatus for indicating anode positions

Country Status (4)

Country Link
US (1) US3345273A (en)
CH (1) CH431105A (en)
DE (1) DE1242884B (en)
GB (1) GB1092992A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491002A (en) * 1964-09-21 1970-01-20 Reynolds Metals Co Adjusting anode blocks in an electrolytic cell
DE1533456B1 (en) * 1965-04-09 1969-10-23 Pechiney Prod Chimiques Sa Anode support frame for a fused metal electrolysis cell
US3539456A (en) * 1968-06-25 1970-11-10 Aluminum Co Of America Electrolytic cell solute determining apparatus and method
US3661748A (en) * 1970-04-07 1972-05-09 Instrumentation Labor Inc Fault sensing instrumentation
ZA74950B (en) * 1973-02-21 1975-01-29 Nat Southwire Aluminum Method and apparatus for producing metal
US3871984A (en) * 1973-09-17 1975-03-18 Reynolds Metals Co Transmission of pot line control signals
US3875030A (en) * 1973-09-17 1975-04-01 Reynolds Metals Co Detection of grounded anodes
DE102013213982A1 (en) * 2013-07-17 2015-03-12 Bayer Materialscience Ag Method and system for monitoring the functioning of electrolysis cells

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1157538A (en) * 1955-09-09 1958-05-30 Ardal Og Sunndal Verk Method and device for regulating electrolysis furnaces
US2933440A (en) * 1956-10-09 1960-04-19 Kaiser Aluminium Chem Corp Method and apparatus for detection of anode effect
US2930746A (en) * 1957-01-10 1960-03-29 Robert J Cooper Control of reduction pot lines

Also Published As

Publication number Publication date
CH431105A (en) 1967-02-28
DE1242884B (en) 1967-06-22
US3345273A (en) 1967-10-03

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