GB1413727A - Electrolysis of aluminium - Google Patents

Electrolysis of aluminium

Info

Publication number
GB1413727A
GB1413727A GB3373673A GB3373673A GB1413727A GB 1413727 A GB1413727 A GB 1413727A GB 3373673 A GB3373673 A GB 3373673A GB 3373673 A GB3373673 A GB 3373673A GB 1413727 A GB1413727 A GB 1413727A
Authority
GB
United Kingdom
Prior art keywords
cell
resistance
aluminium
total
sampled
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
GB3373673A
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.)
Alcan Holdings Switzerland AG
Original Assignee
Alusuisse Holdings AG
Schweizerische Aluminium AG
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 Alusuisse Holdings AG, Schweizerische Aluminium AG filed Critical Alusuisse Holdings AG
Publication of GB1413727A publication Critical patent/GB1413727A/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

1413727 Automatic control of meltelectrolytic aluminium production SWISS ALUMINIUM Ltd 16 July 1973 [18 July 1972] 33736/73 Heading C7B [Also in Division G3] In a known type of cell for the recovery of aluminium by electrolysis of aluminium oxide in a fluoride melt, the instantaneous cell resistance is calculated by a computer from the cell base voltage and base current as sampled at regular intervals, the sampling being discontinued if the cell is disturbed by anode effects or is being tapped or serviced e.g. an anode being replaced. The instantaneous resistance is compared with a base resistance, the absolute value of any differences being summed to form a cumulative total. If a cell disturbance causes this total to exceed a pre-set value, the cell resistance is increased temporarily by automatically or manually increasing the cell interpolar distances until the disturbance is eliminated, when the original interpolar distances are restored. If the total does not exceed the given value within a given period then the cumulative total is returned to zero. The cell resistance may be sampled every 15 to 60 seconds for a period of 1 to 8 hours.
GB3373673A 1972-07-18 1973-07-16 Electrolysis of aluminium Expired GB1413727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1075172A CH576530A5 (en) 1972-07-18 1972-07-18

Publications (1)

Publication Number Publication Date
GB1413727A true GB1413727A (en) 1975-11-12

Family

ID=4366446

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3373673A Expired GB1413727A (en) 1972-07-18 1973-07-16 Electrolysis of aluminium

Country Status (16)

Country Link
US (1) US3829365A (en)
JP (1) JPS5244286B2 (en)
AT (1) AT327579B (en)
BE (1) BE802249A (en)
BR (1) BR7305359D0 (en)
CH (1) CH576530A5 (en)
EG (1) EG11360A (en)
GB (1) GB1413727A (en)
IE (1) IE38062B1 (en)
IS (1) IS1026B6 (en)
IT (1) IT992636B (en)
NL (1) NL168013C (en)
NO (1) NO133940C (en)
PH (1) PH9453A (en)
TR (1) TR17293A (en)
ZA (1) ZA734765B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT329893B (en) * 1973-07-25 1976-06-10 Vaw Ver Aluminium Werke Ag PROCEDURE AND ARRANGEMENT FOR OPERATING AN ELECTROLYSIS PLANT, IN PARTICULAR AN ALUMINUM ELECTROLYSIS PLANT
US4024034A (en) * 1973-07-25 1977-05-17 Siemens Aktiengesellschaft Method for operating the furnaces of an electrolysis plant
ATE133721T1 (en) 1989-02-24 1996-02-15 Comalco Alu CONTROL PROCEDURES FOR ALUMINUM MELTING FURNACES
JP2012511100A (en) * 2008-12-08 2012-05-17 ユニバーシティ オブ サウス オーストラリア Formation of nanoporous materials
CN103088369B (en) * 2013-02-27 2015-06-10 云南铝业股份有限公司 On-line measurement method of bus current of aluminium electrolysis cell

Also Published As

Publication number Publication date
IS1026B6 (en) 1980-04-14
CH576530A5 (en) 1976-06-15
NO133940C (en) 1976-07-21
DE2335029B2 (en) 1976-08-05
JPS5244286B2 (en) 1977-11-07
PH9453A (en) 1975-12-04
AU5805973A (en) 1975-01-16
NL168013B (en) 1981-09-16
BR7305359D0 (en) 1974-08-22
TR17293A (en) 1975-03-24
ATA631373A (en) 1975-04-15
DE2335029A1 (en) 1974-01-31
IS2164A7 (en) 1974-01-19
ZA734765B (en) 1974-06-26
NL168013C (en) 1982-02-16
BE802249A (en) 1973-11-05
EG11360A (en) 1977-08-15
IE38062L (en) 1974-01-18
NO133940B (en) 1976-04-12
JPS4944922A (en) 1974-04-27
IT992636B (en) 1975-09-30
NL7309861A (en) 1974-01-22
US3829365A (en) 1974-08-13
AT327579B (en) 1976-02-10
IE38062B1 (en) 1977-12-21

Similar Documents

Publication Publication Date Title
GB1413727A (en) Electrolysis of aluminium
DE3060071D1 (en) Method and apparatus for sustaining a cathodic protection against corrosion
GB1490960A (en) Electrolytic cell and method of electrorefining or electrowinning a metal using a circulating electrolyte
CA1034663A (en) Method for regulating anode-cathode spacing in an electrolytic cell to prevent current overloads and underloads
GB1433033A (en) Electrolytic machining
GB1396454A (en) Method and apparatus for producing metal by electroreduction
GB1456569A (en) Tapping aluminium from electrolytic cells
GB1146501A (en) Method and apparatus for automatic electric corrosion proofing
ES479962A1 (en) Technique for automatic quenching of anode effects in aluminium reduction cells
GB1413726A (en) Electrolysis of aluminium
GB876127A (en) Anodic treatment of zinc and zinc-base alloys
US4024034A (en) Method for operating the furnaces of an electrolysis plant
DE1260156B (en) Process for maintaining the alumina content in fused-salt electrolysis for aluminum production
GB862860A (en) Purification of thorium or uranium, or thorium-uranium alloys
GB1392263A (en) Electrolysis of aluminium
DK157621C (en) Zinc anode alloy for sacrificial anodes
GB1153226A (en) Improvements relating to Coulometers
GB1297894A (en)
ES8302801A1 (en) Bipolar refining of lead.
GB1407850A (en) Process for adjusting the distance between anode and cathode in an electrolytic cell with flowing mercury cathode
AU485406B2 (en) Method for regulating anode-cathode spacing inan electrolytic cell to prevent current overloads and underloads
Blatch et al. Process for controlling aluminium smelting cells
GB1310702A (en) Method and apparatus for electrolytically etching a workpiece
JPS56108883A (en) Electrically protecting method for embedded metallic body
JPS52146786A (en) Electrolytic equipment of aluminium electrode

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee