ATE105340T1 - CATHODE PROTECTION IN ALUMINUM FURNACES. - Google Patents

CATHODE PROTECTION IN ALUMINUM FURNACES.

Info

Publication number
ATE105340T1
ATE105340T1 AT9090301747T AT90301747T ATE105340T1 AT E105340 T1 ATE105340 T1 AT E105340T1 AT 9090301747 T AT9090301747 T AT 9090301747T AT 90301747 T AT90301747 T AT 90301747T AT E105340 T1 ATE105340 T1 AT E105340T1
Authority
AT
Austria
Prior art keywords
cell
forming
layer
aluminium
boron oxide
Prior art date
Application number
AT9090301747T
Other languages
German (de)
Inventor
Drago D Juric
Kevin D Watson
Raymond W Shaw
Original Assignee
Comalco Alu
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 Comalco Alu filed Critical Comalco Alu
Application granted granted Critical
Publication of ATE105340T1 publication Critical patent/ATE105340T1/en

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

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)
  • Fuel Cell (AREA)
  • Inert Electrodes (AREA)
  • Primary Cells (AREA)
  • Magnetic Heads (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Secondary Cells (AREA)
  • Gas-Filled Discharge Tubes (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

An method of operating an aluminium smelting cell during the start-up phase of the cell comprising forming a layer of boron oxide on the exposed surface of the cathode of the cell, forming a layer of aluminium on the boron oxide layer, said boron oxide layer forming a barrier impervious to oxygen at temperature from 400 DEG C to about 650 DEG C, and said aluminium layer forming a barrier to oxygen at temperatures above about 600 DEG C up to temperatures of about 1000 DEG C thereby reducing the development of oxidation products in the cathode during cell start-up.
AT9090301747T 1989-02-20 1990-02-19 CATHODE PROTECTION IN ALUMINUM FURNACES. ATE105340T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ282789 1989-02-20
EP90301747A EP0393817B1 (en) 1989-02-20 1990-02-19 Cathode protection in aluminium-smelting cells

Publications (1)

Publication Number Publication Date
ATE105340T1 true ATE105340T1 (en) 1994-05-15

Family

ID=3773727

Family Applications (1)

Application Number Title Priority Date Filing Date
AT9090301747T ATE105340T1 (en) 1989-02-20 1990-02-19 CATHODE PROTECTION IN ALUMINUM FURNACES.

Country Status (8)

Country Link
EP (1) EP0393817B1 (en)
AT (1) ATE105340T1 (en)
BR (1) BR9000795A (en)
CA (1) CA2010316C (en)
DE (1) DE69008611D1 (en)
IS (1) IS3553A7 (en)
NO (1) NO304798B1 (en)
NZ (1) NZ232582A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103981539B (en) * 2014-03-26 2016-05-11 广西百色银海铝业有限责任公司 Aluminium cell stops cathode protecting process after groove
RU2724236C9 (en) * 2019-09-24 2020-09-03 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Method of protecting cathode blocks of aluminum electrolysis cells with burned anodes, a protective composition and a coating

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US621805A (en) * 1899-03-28 Emil fischer
SU1331906A1 (en) * 1986-03-28 1987-08-23 Братский алюминиевый завод Lining of cathode part of aluminium electrolyzer

Also Published As

Publication number Publication date
CA2010316C (en) 2000-04-11
EP0393817A1 (en) 1990-10-24
AU5001090A (en) 1990-08-23
NZ232582A (en) 1991-09-25
DE69008611D1 (en) 1994-06-09
EP0393817B1 (en) 1994-05-04
NO900802L (en) 1990-08-21
BR9000795A (en) 1991-02-05
NO304798B1 (en) 1999-02-15
NO900802D0 (en) 1990-02-20
IS3553A7 (en) 1990-08-21
AU617040B2 (en) 1991-11-14
CA2010316A1 (en) 1990-08-20

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties