CA3193088A1 - Detection de reactions aluminothermique dans une cellule electrolytique - Google Patents

Detection de reactions aluminothermique dans une cellule electrolytique

Info

Publication number
CA3193088A1
CA3193088A1 CA3193088A CA3193088A CA3193088A1 CA 3193088 A1 CA3193088 A1 CA 3193088A1 CA 3193088 A CA3193088 A CA 3193088A CA 3193088 A CA3193088 A CA 3193088A CA 3193088 A1 CA3193088 A1 CA 3193088A1
Authority
CA
Canada
Prior art keywords
voltage drop
anode
derivative
variance
voltage
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.)
Pending
Application number
CA3193088A
Other languages
English (en)
Inventor
Leroy D'ASTOLFO
Nicholas FINDLEY
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.)
Elysis LP
Original Assignee
Elysis LP
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 Elysis LP filed Critical Elysis LP
Publication of CA3193088A1 publication Critical patent/CA3193088A1/fr
Pending 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
    • 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
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes
    • 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
    • C25C3/16—Electric current supply devices, e.g. bus bars

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)
  • Catalysts (AREA)
  • Hybrid Cells (AREA)

Abstract

L'invention concerne un procédé de détection d'une réaction aluminothermique dans une cellule électrolytique comprenant un ensemble anode d'une ou plusieurs anodes contenant un oxyde métallique. Chaque ensemble anode est alimenté par un courant fourni par une tige anodique distincte pour chaque ensemble anode. Le procédé comprend : la mesure d'une chute de tension à l'aide d'une paire de sondes de tension situées sur la tige d'anode, la chute de tension correspondant à un flux de courant dans l'ensemble anode ; le traitement de la chute de tension en calculant au moins la dérivée de la chute de tension, la variance de la chute de tension et/ou la dérivée de la variance de la chute de tension ; et la détection d'une réaction aluminothermique sur la base des résultats du traitement du signal, avant d'atténuer et/ou de supprimer la réaction aluminothermique en ajustant les paramètres opérationnels de la cellule électrolytique. Ce procédé est particulièrement avantageux, car il réduit d'un facteur 10 le nombre de chutes de tension nécessaires à la détection d'une réaction aluminothermique.
CA3193088A 2020-10-28 2021-10-27 Detection de reactions aluminothermique dans une cellule electrolytique Pending CA3193088A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202063106517P 2020-10-28 2020-10-28
US63/106,517 2020-10-28
PCT/CA2021/051512 WO2022087732A1 (fr) 2020-10-28 2021-10-27 Détection de réactions aluminothermique dans une cellule électrolytique

Publications (1)

Publication Number Publication Date
CA3193088A1 true CA3193088A1 (fr) 2022-05-05

Family

ID=81381935

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3193088A Pending CA3193088A1 (fr) 2020-10-28 2021-10-27 Detection de reactions aluminothermique dans une cellule electrolytique

Country Status (10)

Country Link
US (1) US20230374685A1 (fr)
EP (1) EP4237838A4 (fr)
CN (1) CN116457503A (fr)
AU (1) AU2021371450A1 (fr)
BR (1) BR112023005871A2 (fr)
CA (1) CA3193088A1 (fr)
DK (1) DK202370247A1 (fr)
PY (1) PY2195200A (fr)
WO (1) WO2022087732A1 (fr)
ZA (1) ZA202304413B (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888747A (en) * 1972-10-18 1975-06-10 Nat Southwire Aluminum Method of and apparatus for producing metal
JPS57181390A (en) * 1981-04-28 1982-11-08 Mitsubishi Keikinzoku Kogyo Kk Measuring method for counter electromotive force of aluminum electrolytic cell
FR2529913A1 (fr) * 1982-07-07 1984-01-13 Chloe Chemie Dispositif de controle et de visualisation de la repartition du courant dans un electrolyseur
RU2359072C1 (ru) * 2007-10-29 2009-06-20 Александр Иванович Громыко Способ съема информационных параметров алюминиевых электролизеров
CN102443821A (zh) * 2010-10-15 2012-05-09 杜金宝 一种液面波动监测装置
CN201908142U (zh) * 2010-12-17 2011-07-27 高德金 铝电解槽连续测试控制调整装置
BR112015000194B1 (pt) * 2012-08-17 2021-05-18 Alcoa Usa Corp célula eletrolítica de ânodo inerte e método de monitoraruma célula eletrolítica
CN104919090B (zh) * 2012-12-31 2018-03-13 美铝美国公司 确定生电极电阻率的方法与制作电极的方法
CN107604388B (zh) * 2017-09-11 2023-08-08 昆明理工恒达科技股份有限公司 复合阳极材料及其制备方法、阳极板及其制备方法

Also Published As

Publication number Publication date
AU2021371450A9 (en) 2024-05-02
ZA202304413B (en) 2025-04-30
CN116457503A (zh) 2023-07-18
EP4237838A1 (fr) 2023-09-06
BR112023005871A2 (pt) 2023-05-09
AU2021371450A1 (en) 2023-06-01
WO2022087732A1 (fr) 2022-05-05
EP4237838A4 (fr) 2025-06-18
US20230374685A1 (en) 2023-11-23
PY2195200A (es) 2022-05-30
DK202370247A1 (en) 2023-06-09

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