GB1088636A - Method of anticipating the scorching of, and systematically feeding, cells for the igneous electrolysis of alumina - Google Patents

Method of anticipating the scorching of, and systematically feeding, cells for the igneous electrolysis of alumina

Info

Publication number
GB1088636A
GB1088636A GB1363/65A GB136365A GB1088636A GB 1088636 A GB1088636 A GB 1088636A GB 1363/65 A GB1363/65 A GB 1363/65A GB 136365 A GB136365 A GB 136365A GB 1088636 A GB1088636 A GB 1088636A
Authority
GB
United Kingdom
Prior art keywords
cell
alumina
internal resistance
anticipating
scorching
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
GB1363/65A
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.)
Pechiney SA
Original Assignee
Pechiney SA
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 Pechiney SA filed Critical Pechiney SA
Publication of GB1088636A publication Critical patent/GB1088636A/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 a fused electrolyte process of aluminium production, alumina is added to the cell to avoid the anode effect when a regular increase in the internal resistance of the cell is detected. In addition, the position of the anode system may be regulated according to the mean value of the internal resistance taken over a period between 1 second and 10 minutes and calculated from the ratio between the ohmic voltage drop in the cell (difference between the voltage across the cell terminals and an estimate of its counter - E.M.F.) and the current flowing therethrough; e.g. the anode may be displaced 1/3 mm with an internal resistance variation of 0.1 microhm.
GB1363/65A 1964-01-14 1965-01-12 Method of anticipating the scorching of, and systematically feeding, cells for the igneous electrolysis of alumina Expired GB1088636A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR960247A FR1397946A (en) 1964-01-14 1964-01-14 Process for the prediction of burns, the systematic feeding and automatic regulation of the anode system of the tanks for the igneous electrolysis of alumina

Publications (1)

Publication Number Publication Date
GB1088636A true GB1088636A (en) 1967-10-25

Family

ID=8820858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1363/65A Expired GB1088636A (en) 1964-01-14 1965-01-12 Method of anticipating the scorching of, and systematically feeding, cells for the igneous electrolysis of alumina

Country Status (13)

Country Link
US (1) US3455795A (en)
AT (1) AT259887B (en)
BE (1) BE658220A (en)
BG (1) BG16458A3 (en)
CH (1) CH463797A (en)
DE (1) DE1260156B (en)
ES (1) ES308069A1 (en)
FR (1) FR1397946A (en)
GB (1) GB1088636A (en)
IS (1) IS865B6 (en)
LU (1) LU47777A1 (en)
NL (1) NL6500357A (en)
OA (1) OA01117A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539461A (en) * 1967-10-19 1970-11-10 Kaiser Aluminium Chem Corp Anode effect termination
FR1605433A (en) * 1967-11-06 1975-10-17
US3660256A (en) * 1967-12-07 1972-05-02 Gen Electric Method and apparatus for aluminum potline control
US3629079A (en) * 1968-02-23 1971-12-21 Kaiser Aluminium Chem Corp Alumina feed control
US3625842A (en) * 1968-05-24 1971-12-07 Kaiser Aluminium Chem Corp Alumina feed control
NL6818752A (en) * 1968-12-27 1970-06-30
US3888747A (en) * 1972-10-18 1975-06-10 Nat Southwire Aluminum Method of and apparatus for producing metal
US4654130A (en) * 1986-05-15 1987-03-31 Reynolds Metals Company Method for improved alumina control in aluminum electrolytic cells employing point feeders

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545413A (en) * 1946-10-29 1951-03-13 Alais & Froges & Camarque Cie Apparatus for automatic regulation of electrolytic cells
US2933440A (en) * 1956-10-09 1960-04-19 Kaiser Aluminium Chem Corp Method and apparatus for detection of anode effect
US2918421A (en) * 1957-06-14 1959-12-22 Anaconda Aluminum Co Measuring means for the bath resistance of aluminum reduction cells
US3329592A (en) * 1963-08-30 1967-07-04 Reynolds Metals Co Method of and apparatus for controlling aluminum reduction pots
US3317413A (en) * 1963-09-23 1967-05-02 Pechiney Cie De Produits Control of alumina content during igneous electrolysis

Also Published As

Publication number Publication date
ES308069A1 (en) 1965-06-16
IS865B6 (en) 1974-06-28
BG16458A3 (en) 1972-11-20
DE1260156B (en) 1968-02-01
IS1449A7 (en) 1965-07-15
LU47777A1 (en) 1965-07-13
FR1397946A (en) 1965-05-07
US3455795A (en) 1969-07-15
AT259887B (en) 1968-02-12
NL6500357A (en) 1965-07-15
CH463797A (en) 1968-10-15
BE658220A (en) 1965-07-13
OA01117A (en) 1968-08-07

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