GB678134A - Graphitization of carbon articles by electric heating - Google Patents

Graphitization of carbon articles by electric heating

Info

Publication number
GB678134A
GB678134A GB6134/51A GB613451A GB678134A GB 678134 A GB678134 A GB 678134A GB 6134/51 A GB6134/51 A GB 6134/51A GB 613451 A GB613451 A GB 613451A GB 678134 A GB678134 A GB 678134A
Authority
GB
United Kingdom
Prior art keywords
granular material
resistance
carbon
electric resistance
articles
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
GB6134/51A
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.)
Union Carbide Corp
Original Assignee
Union Carbide and Carbon Corp
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 Union Carbide and Carbon Corp filed Critical Union Carbide and Carbon Corp
Publication of GB678134A publication Critical patent/GB678134A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Resistance Heating (AREA)

Abstract

678,134. Electric resistance furnaces for graphitization of carbon. UNION CARBIDE & CARBON CORPORATION. March 14, 1951 [March 28, 1950], No. 6134/51. Class 39(iii) Shaped carbon articles 11 e.g. furnace electrodes, graphite bars for electrolytic cells, carbon plates for motor generator brushes, or rods for mercury are rectifiers, are packed in granular carbonaceous material 13 having a negative thermal coefficient of electric resistance, in which are embedded auxiliary electric resistance elements 14 having a positive thermal coefficient of electric resistance and a lower resistance than that of the granular material at below 400‹C. Several electrodes 15 supply current to the granular material 13 and auxiliary resistances 14, which may be coarse wire netting, whereby the articles 11 and granular material are heated uniformly in the temperature range wherein the resistance of the auxiliary elements 14 is lower than that of the granular material, and heating is continued until the resistance of the auxiliary elements is higher than that of the granular material 13. The pieces of wire netting 14 are arranged above, below and in parallel lines between and outside the articles so as to substantially surround them. The ends of the wire netting 14, are connected to graphite bars 16 adjacent the electrodes 15. Thus the netting heats the granular material up to 600‹C, and heating is continued by current through the granular material up to 1000‹-1500‹C or above graphitization temperature e.g. 2700‹C.
GB6134/51A 1950-03-28 1951-03-14 Graphitization of carbon articles by electric heating Expired GB678134A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US678134XA 1950-03-28 1950-03-28

Publications (1)

Publication Number Publication Date
GB678134A true GB678134A (en) 1952-08-27

Family

ID=22078575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6134/51A Expired GB678134A (en) 1950-03-28 1951-03-14 Graphitization of carbon articles by electric heating

Country Status (1)

Country Link
GB (1) GB678134A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214768A (en) * 1988-01-27 1989-09-06 Miroslav Pesta Heating device for generating very high temperatures
WO2010049428A2 (en) * 2008-10-27 2010-05-06 Timcal S.A. Process for the production and treatment of graphite powders

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214768A (en) * 1988-01-27 1989-09-06 Miroslav Pesta Heating device for generating very high temperatures
GB2214768B (en) * 1988-01-27 1991-11-27 Miroslav Pesta Heating device for generating very high temperatures
WO2010049428A2 (en) * 2008-10-27 2010-05-06 Timcal S.A. Process for the production and treatment of graphite powders
WO2010049428A3 (en) * 2008-10-27 2010-12-29 Timcal S.A. Process for the production and treatment of graphite powders
US9102539B2 (en) 2008-10-27 2015-08-11 Imerys Graphite & Carbon Switzerland Sa Process for the production and treatment of graphite powders

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