CA2010316A1 - Cathode protection - Google Patents

Cathode protection

Info

Publication number
CA2010316A1
CA2010316A1 CA2010316A CA2010316A CA2010316A1 CA 2010316 A1 CA2010316 A1 CA 2010316A1 CA 2010316 A CA2010316 A CA 2010316A CA 2010316 A CA2010316 A CA 2010316A CA 2010316 A1 CA2010316 A1 CA 2010316A1
Authority
CA
Canada
Prior art keywords
cell
forming
layer
aluminium
boron oxide
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.)
Granted
Application number
CA2010316A
Other languages
French (fr)
Other versions
CA2010316C (en
Inventor
Raymond W. Shaw
Drago D. Juric
Kevin D. Watson
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.)
Rio Tinto Aluminium Ltd
Original Assignee
Raymond W. Shaw
Drago D. Juric
Kevin D. Watson
Comalco Aluminium Limited
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 Raymond W. Shaw, Drago D. Juric, Kevin D. Watson, Comalco Aluminium Limited filed Critical Raymond W. Shaw
Publication of CA2010316A1 publication Critical patent/CA2010316A1/en
Application granted granted Critical
Publication of CA2010316C publication Critical patent/CA2010316C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

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.
CA002010316A 1989-02-20 1990-02-19 Cathode protection Expired - Lifetime CA2010316C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ2827 1989-02-20
AUPJ282789 1989-02-20

Publications (2)

Publication Number Publication Date
CA2010316A1 true CA2010316A1 (en) 1990-08-20
CA2010316C CA2010316C (en) 2000-04-11

Family

ID=3773727

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002010316A Expired - Lifetime CA2010316C (en) 1989-02-20 1990-02-19 Cathode protection

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 (1)

* 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

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
NO304798B1 (en) 1999-02-15
CA2010316C (en) 2000-04-11
BR9000795A (en) 1991-02-05
AU617040B2 (en) 1991-11-14
NO900802D0 (en) 1990-02-20
NO900802L (en) 1990-08-21
NZ232582A (en) 1991-09-25
IS3553A7 (en) 1990-08-21
EP0393817A1 (en) 1990-10-24
ATE105340T1 (en) 1994-05-15
AU5001090A (en) 1990-08-23
DE69008611D1 (en) 1994-06-09
EP0393817B1 (en) 1994-05-04

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Legal Events

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