GB974019A - Electrodes containing petroleum coke - Google Patents

Electrodes containing petroleum coke

Info

Publication number
GB974019A
GB974019A GB273162A GB273162A GB974019A GB 974019 A GB974019 A GB 974019A GB 273162 A GB273162 A GB 273162A GB 273162 A GB273162 A GB 273162A GB 974019 A GB974019 A GB 974019A
Authority
GB
United Kingdom
Prior art keywords
coke
weight
mesh
prebaked
fluid
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
Application number
GB273162A
Inventor
Joseph Frederick Nelson
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB273162A priority Critical patent/GB974019A/en
Publication of GB974019A publication Critical patent/GB974019A/en
Expired 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
    • C25C3/08—Cell construction, e.g. bottoms, walls, cathodes
    • C25C3/12—Anodes
    • C25C3/125—Anodes based on carbon
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/06—Electrodes
    • H05B7/08—Electrodes non-consumable
    • H05B7/085—Electrodes non-consumable mainly consisting of carbon

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Discharge Heating (AREA)

Abstract

<PICT:0974019/C1/1> <PICT:0974019/C1/2> A prebaked or soderberg carbon electrode is made by mixing 10-40% by weight of coke from the delayed coking process of particle size between 20 mesh and 1/2 inch with 60-90% by weight of coke from the fluid coking process so that 6-45% by weight of the total coke mixture is ground fluid coke finer than 200 mesh, the remainder being unground coke larger than 200 mesh, adding a carbonaceous binder, and, in the case of prebaked electrodes, moulding and baking. Pitch is added to give 12 to 40% by weight of pitch in the mix which is then fed directly to the soderberg electrode, or to form a prebaked electrode, pressed between 3000 and 10,000 p.s.i., or extruded, and leaked up to 30 days at 1800 DEG F.-2400 DEG F. The coke particles may be calcined prior to mixing at 1800-3000 DEG F. for 0.5 hour to 1-3 weeks to give delayed coke density 2.0-2.10 gms/cc. and fluid coke 1.83-2.00 gms/cc. Specification 752,400 is referred to.
GB273162A 1962-01-24 1962-01-24 Electrodes containing petroleum coke Expired GB974019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB273162A GB974019A (en) 1962-01-24 1962-01-24 Electrodes containing petroleum coke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB273162A GB974019A (en) 1962-01-24 1962-01-24 Electrodes containing petroleum coke

Publications (1)

Publication Number Publication Date
GB974019A true GB974019A (en) 1964-11-04

Family

ID=9744820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB273162A Expired GB974019A (en) 1962-01-24 1962-01-24 Electrodes containing petroleum coke

Country Status (1)

Country Link
GB (1) GB974019A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005112511A1 (en) * 2004-05-17 2005-11-24 Sgl Carbon Ag Fracture resistant electrodes for a carbothermic reduction furnace

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005112511A1 (en) * 2004-05-17 2005-11-24 Sgl Carbon Ag Fracture resistant electrodes for a carbothermic reduction furnace

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