[go: up one dir, main page]

ES2075401T3 - Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio. - Google Patents

Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio.

Info

Publication number
ES2075401T3
ES2075401T3 ES91810305T ES91810305T ES2075401T3 ES 2075401 T3 ES2075401 T3 ES 2075401T3 ES 91810305 T ES91810305 T ES 91810305T ES 91810305 T ES91810305 T ES 91810305T ES 2075401 T3 ES2075401 T3 ES 2075401T3
Authority
ES
Spain
Prior art keywords
sub
electrolysis cell
stabilization
regulation
content
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 - Lifetime
Application number
ES91810305T
Other languages
English (en)
Inventor
Peter Entner
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.)
3A Composites International AG
Original Assignee
Alusuisse Lonza Services Ltd
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 Lonza Services Ltd filed Critical Alusuisse Lonza Services Ltd
Application granted granted Critical
Publication of ES2075401T3 publication Critical patent/ES2075401T3/es
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
    • 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)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

ES UN METODO QUE SIRVE PARA EL REGULADO Y ESTABILIZADO DE UN CONTENIDO DE A1F SUB 3 DE, POR LO MENOS, UN 10% DEL PESO (C) EN EL BAÑO DE UNA CELULA DE ELECTROLISIS, PARA LA OBTENCION DE ALUMINIO, A PARTIR DE OXIDO DE ALUMINIO, DISUELTO EN UNA COLADA DE CRIOLITA. DURANTE UN PERIODO DE TIEMPO (T SUB 1) SE ANALIZA EL ESTADO INDIVIDUAL DE UNA CELULA DE ELECTROLISIS DE ALUMINIO, EN BASE A UNA SERIE DE VALORES DE MEDIDA QUE ABARCA DIVERSOS PARAMETROS, EN ESPECIAL PROCEDENTES DE SU BAÑERA CATODICA DE CARBONO. POR MEDIO DE UN CALCULO MODELO SE DEDUCE EL DESVIO OPTIMO DE TIEMPO (ZV) ENTRE EL MOMENTO DE AÑADIR A1F SUB 3 Y SU EFECTO EN EL ELECTROLITO. LOS AÑADIDOS (Z) DE A1F SUB 3 SE REALIZAN DE ACUERDO CON VALORES DETERMINADOS DEL CONTENIDO DE A1F SUB 3 (C), CONSIDERANDO EL CALCULO DEL DESVIO DE TIEMPO (ZV) Y AÑADIENDO EL A1F SUB 3 EN DOSIS O CONTINUAMENTE.
ES91810305T 1990-05-04 1991-04-24 Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio. Expired - Lifetime ES2075401T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH152790 1990-05-04

Publications (1)

Publication Number Publication Date
ES2075401T3 true ES2075401T3 (es) 1995-10-01

Family

ID=4212527

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91810305T Expired - Lifetime ES2075401T3 (es) 1990-05-04 1991-04-24 Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio.

Country Status (9)

Country Link
US (1) US5094728A (es)
EP (1) EP0455590B1 (es)
AU (1) AU643006B2 (es)
CA (1) CA2041440A1 (es)
DE (1) DE59105830D1 (es)
ES (1) ES2075401T3 (es)
IS (1) IS1632B (es)
NO (1) NO304748B1 (es)
ZA (1) ZA913260B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805619C2 (de) * 1998-02-12 2002-08-01 Heraeus Electro Nite Int Verfahren zur Regelung des AlF¶3¶-Gehaltes in Kryolithschmelzen
FR2821364B1 (fr) * 2001-02-28 2004-04-09 Pechiney Aluminium Procede de regulation d'une cellule d'electrolyse
FR2821363B1 (fr) * 2001-02-28 2003-04-25 Pechiney Aluminium Procede de regulation d'une cellule d'electrolyse
EP1344847A1 (de) * 2001-12-03 2003-09-17 Alcan Technology & Management AG Regulierung einer Aluminiumelektrolysezelle
US9771659B2 (en) * 2013-03-13 2017-09-26 Alcoa Usa Corp. Systems and methods of protecting electrolysis cell sidewalls
CN104451779B (zh) * 2014-12-17 2017-01-18 湖南创元铝业有限公司 铝电解槽氟化铝控制方法
WO2020190271A1 (en) * 2019-03-16 2020-09-24 General Electric Company System and method for controlling of smelting pot line
CN117210879B (zh) * 2023-10-12 2025-02-11 中国铝业股份有限公司 一种铝电解槽用氟化铝添加量计算方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380897A (en) * 1964-11-16 1968-04-30 Reynolds Metals Co Method of determining ore concentration
US3471390A (en) * 1965-03-24 1969-10-07 Reynolds Metals Co Alumina concentration meter
NO166821C (no) * 1985-02-21 1991-09-04 Aardal & Sunndal Verk As Fremgangsmaate for styring av aluminiumoksyd-tilfoerselen til elektrolyseovner for fremstilling av aluminium.
DE3564825D1 (en) * 1985-03-18 1988-10-13 Alcan Int Ltd Controlling alf 3 addition to al reduction cell electrolyte
FR2581660B1 (fr) * 1985-05-07 1987-06-05 Pechiney Aluminium Procede de regulation precise d'une faible teneur en alumine dans une cuve d'electrolyse ignee pour la production d'aluminium
US4654130A (en) * 1986-05-15 1987-03-31 Reynolds Metals Company Method for improved alumina control in aluminum electrolytic cells employing point feeders
US4814050A (en) * 1986-10-06 1989-03-21 Aluminum Company Of America Estimation and control of alumina concentration in hall cells
FR2620738B1 (fr) * 1987-09-18 1989-11-24 Pechiney Aluminium Procede de regulation de l'acidite du bain d'electrolyse par recyclage des produits fluores emis par les cuves d'electrolyse hall-heroult

Also Published As

Publication number Publication date
IS1632B (is) 1996-07-19
NO911708D0 (no) 1991-04-30
AU643006B2 (en) 1993-11-04
CA2041440A1 (en) 1991-11-05
DE59105830D1 (de) 1995-08-03
NO911708L (no) 1991-11-05
ZA913260B (en) 1992-01-29
EP0455590B1 (de) 1995-06-28
NO304748B1 (no) 1999-02-08
US5094728A (en) 1992-03-10
EP0455590A1 (de) 1991-11-06
AU7601591A (en) 1991-11-07
IS3698A7 (is) 1991-11-05

Similar Documents

Publication Publication Date Title
Moore Stimulation of Na: H exchange by insulin
ES2053523T3 (es) Electrodo para la fabricacion de metales en sales fundidas, su metodo y celda para el mismo.
KR880013705A (ko) 인쇄판 지지체에 사용하기 위한 알루미늄의 전기화학적 조도화 방법
ES2075401T3 (es) Regulacion y estabilizacion del contenido de alf3 en una celda de electrolisis de aluminio.
DE69125573D1 (de) ELEKTROPLATTIERTE KUPFERFOLIE UND DEREN HERSTELLUNG UNTER VERWENDUNG ELEKTROLYTISCHER LöSUNGEN MIT NIEDRIGEN KONZENTRATIONEN VON CHLOR IONEN
BR9917301A (pt) Modelo de circulação de banho de sal fundido para uma pilha eletrolìtica
DE3481985D1 (de) 9-halogen-prostaglandinderivate, verfahren zu ihrer herstellung und ihre verwendung als arzneimittel.
IT8621278A1 (it) Catodo incollato alla superficie di una membrana a scambio ionico, per l'impiego in un elettrolizzatore per processi elettrochimici e relativo metodo di elettrolisi
GB970798A (en) Improvements relating to the production of aluminium
GB1215804A (en) Improvements in or relating to effluent treatment
GB966627A (en) Improvements in or relating to the electrolytic etching of anodisable metal foil
ES2172926T3 (es) Procedimiento y dispositivo para regular la concentracion de sustancias en electrolitos.
ES8800224A1 (es) Un procedimiento para la preparacion de tetrahidroimidazoquinazolinonas
NO902630L (no) Fremgangsmaate, bad og celle for elektroavsetning av tinnvismut legeringer.
IT8420920A1 (it) Barra catodica comprendente una suola metallica, per vasche di elettrolisi del tipo hall-heroult
GB1194437A (en) Improvements in Silicided Molybdenum Surfaces
KR930004500A (ko) 전기 도금 방법
AR032903A1 (es) Procedimiento de regulacion de una celula de electrolisis
Hosny et al. Correlation between mass transfer and operating parameters in zinc electrowinning
KR850700045A (ko) 전기 야금 공정용 전극
EP0377411A3 (en) Method and apparatus for fresh water demineralisation by electrolysis
DE69109416D1 (de) Verminderung oder Beseitigung der von der Wasserstoff-Ausgabe verursachten Filmsmangeln während der kathodischen Elektrotauchlackierung.
ES2032769T3 (es) Metodo para el coloreado electronico de aluminio o de aleaciones de aluminio.
US1789523A (en) Method of electrolytically depositing chromium
DE3760978D1 (en) Improvements relating to the treatment of medium used in photographic processors

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 455590

Country of ref document: ES