RO81214B - METODA SI DISPOZITIV PENTRU CONTROLUL NIVELULUI DE REFERINTA îN BAIA ELECTROLITICA - Google Patents

METODA SI DISPOZITIV PENTRU CONTROLUL NIVELULUI DE REFERINTA îN BAIA ELECTROLITICA

Info

Publication number
RO81214B
RO81214B RO91320A RO9132077A RO81214B RO 81214 B RO81214 B RO 81214B RO 91320 A RO91320 A RO 91320A RO 9132077 A RO9132077 A RO 9132077A RO 81214 B RO81214 B RO 81214B
Authority
RO
Romania
Prior art keywords
level
bath
cell
salt
reference level
Prior art date
Application number
RO91320A
Other languages
English (en)
Other versions
RO81214A (ro
Inventor
Russell Lee White
Kenneth Lee Edwards
Original Assignee
Aluminum Company Of America
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 Aluminum Company Of America filed Critical Aluminum Company Of America
Publication of RO81214A publication Critical patent/RO81214A/ro
Publication of RO81214B publication Critical patent/RO81214B/ro

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)
  • Control Of Non-Electrical Variables (AREA)

Abstract

Inventia se refera la o metoda si un dispozitiv pentru controlul nivelului de referinta într-o baie electrolitica destinata folosirii în industria aluminiului, dispozitivul asigurînd controlul nivelului baii fara a se recurge la masuri ale rezistentei ei electrice. Metoda, conform inventiei, consta în masurarea nivelului de sare, a densitatii de sare, a volumului metalului din celula electrolitica si determinarea de sare topita ce trebuie introdusa, volumul metalului topit determinîndu-se prin masurarea curentului ce trece prin celula si a pierderilor de caldura din celula cu doi senzori de temperatura. Dispozitivul este alcatuit dintr-un circuit de receptie a tensiunii de semnal care reprezinta nivelul de functionare prestabilit baii, un circuit pentru receptia tensiunii de semnal care reprezinta nivelul predeterminat si real, combinarea semnalelor respective avînd ca urmare generarea unui semnal de iesire care comanda admisia de material în baie.
RO91320A 1976-11-04 1977-08-10 METODA SI DISPOZITIV PENTRU CONTROLUL NIVELULUI DE REFERINTA îN BAIA ELECTROLITICA RO81214B (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/738,657 US4045308A (en) 1976-11-04 1976-11-04 Bath level set point control in an electrolytic cell and method of operating same

Publications (2)

Publication Number Publication Date
RO81214A RO81214A (ro) 1984-01-14
RO81214B true RO81214B (ro) 1984-01-30

Family

ID=24968925

Family Applications (1)

Application Number Title Priority Date Filing Date
RO91320A RO81214B (ro) 1976-11-04 1977-08-10 METODA SI DISPOZITIV PENTRU CONTROLUL NIVELULUI DE REFERINTA îN BAIA ELECTROLITICA

Country Status (6)

Country Link
US (1) US4045308A (ro)
JP (1) JPS5357110A (ro)
DE (1) DE2729945C2 (ro)
NL (1) NL7708044A (ro)
RO (1) RO81214B (ro)
SU (1) SU793411A3 (ro)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2483965A1 (fr) * 1980-06-06 1981-12-11 Aluminium Grece Procede et appareillage de controle de l'alimentation en alumine d'une cellule pour la production d'aluminium par electrolyse
DE3565864D1 (en) * 1985-03-18 1988-12-01 Alcan Int Ltd Controlling aluminium reduction cell operation
EP0195142B1 (en) * 1985-03-18 1988-09-07 Alcan International Limited Controlling alf 3 addition to al reduction cell electrolyte
FR2614320B1 (fr) * 1987-04-21 1989-06-30 Pechiney Aluminium Procede et dispositif de controle des additions d'electrolyse solide dans les cuves d'electrolyse pour la production d'aluminium.
JPH032707U (ro) * 1989-05-30 1991-01-11
AU2003903150A0 (en) * 2003-06-20 2003-07-03 Bhp Billiton Innovation Pty Ltd Electrochemical reduction of metal oxides
WO2005031041A1 (en) * 2003-09-26 2005-04-07 Bhp Billiton Innovation Pty Ltd Electrochemical reduction of metal oxides
EA009106B1 (ru) * 2003-10-14 2007-10-26 Би Эйч Пи БИЛЛИТОН ИННОВЕЙШН ПТИ ЛТД. Электрохимическое восстановление оксидов металлов
CN101006204A (zh) * 2004-06-22 2007-07-25 Bhp比利顿创新公司 金属氧化物的电化学还原
WO2006010228A1 (en) * 2004-07-30 2006-02-02 Bhp Billiton Innovation Pty Ltd Electrochemical reduction of metal oxides
CN105624740A (zh) * 2014-10-30 2016-06-01 宁波创润新材料有限公司 测量方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3629079A (en) * 1968-02-23 1971-12-21 Kaiser Aluminium Chem Corp Alumina feed control
US3622475A (en) * 1968-08-21 1971-11-23 Reynolds Metals Co Reduction cell control system
US3632488A (en) * 1969-01-23 1972-01-04 Reynolds Metals Co Reduction cell control system

Also Published As

Publication number Publication date
DE2729945C2 (de) 1983-01-05
RO81214A (ro) 1984-01-14
US4045308A (en) 1977-08-30
DE2729945A1 (de) 1978-05-18
JPS5357110A (en) 1978-05-24
JPS5653636B2 (ro) 1981-12-19
NL7708044A (nl) 1978-05-08
SU793411A3 (ru) 1980-12-30

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