GB798644A - Improvements in or relating to the purification of carbon or graphite articles - Google Patents

Improvements in or relating to the purification of carbon or graphite articles

Info

Publication number
GB798644A
GB798644A GB22239/55A GB2223955A GB798644A GB 798644 A GB798644 A GB 798644A GB 22239/55 A GB22239/55 A GB 22239/55A GB 2223955 A GB2223955 A GB 2223955A GB 798644 A GB798644 A GB 798644A
Authority
GB
United Kingdom
Prior art keywords
temperature
treatment
chlorinating
graphite
fluorinating
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
GB22239/55A
Inventor
Alan Wilmot Beeston
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 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
Priority to BE540521D priority Critical patent/BE540521A/xx
Priority to NL104972D priority patent/NL104972C/xx
Priority to LU33787D priority patent/LU33787A1/xx
Priority to NL199674D priority patent/NL199674A/xx
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Priority to GB22239/55A priority patent/GB798644A/en
Priority to CH332127D priority patent/CH332127A/en
Priority to DEU3462A priority patent/DE1036233B/en
Priority to FR1135459D priority patent/FR1135459A/en
Publication of GB798644A publication Critical patent/GB798644A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/60—Heating arrangements wherein the heating current flows through granular powdered or fluid material, e.g. for salt-bath furnace, electrolytic heating
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/20—Graphite
    • C01B32/21—After-treatment
    • C01B32/215—Purification; Recovery or purification of graphite formed in iron making, e.g. kish graphite
    • 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
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/53—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone involving the removal of at least part of the materials of the treated article, e.g. etching, drying of hardened concrete
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Carbon or graphite is purified by treatment at elevated temperature with a gaseous fluorinating agent, e.g. fluorine, hydrogen fluoride, or a fluorinated hydrocarbon which dissociates to produce fluorine or hydrogen fluoride at the temperature of treatment. Organic fluorides specified are tetrafluoro-, dichloro-, monofluoro-, dichlorodifluoro-, monochlorodifluoro-, and trichloromonofluoro-methane and mono-, di, tri- and tetrafluoro ethylene. The temperature of treatment may be 1860-2600 DEG C., preferably 2200-2600 DEG C. The material may be pretreated with a gaseous or vaporous chlorinating agent at a progressively increasing temperature initially less than 1860 DEG C., preferably increasing to a temperature in the range 1860-1950 DEG C. Chlorinating agents specified are chlorine, carbon tetrachloride, and hexachloropropylene. Nitrogen, ammonia, or helium may be used as carrier or diluent for the chlorinating and/or fluorinating agent and to sweep out the chlorinating and fluorinating agents after treatment. Petroleum coke powder bonded with coal tar pitch, and graphite prepared therefrom, may be treated. A fluorinating apparatus (Fig. 1, not shown), comprises an electric furnace comprising graphite electrodes separated by a bed of pure petroleum coke in which are placed the graphite articles to be treated. Porous tubes for introduction of the fluorinating agent are mounted below the articles.
GB22239/55A 1955-08-03 1955-08-03 Improvements in or relating to the purification of carbon or graphite articles Expired GB798644A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE540521D BE540521A (en) 1955-08-03
NL104972D NL104972C (en) 1955-08-03
LU33787D LU33787A1 (en) 1955-08-03
NL199674D NL199674A (en) 1955-08-03
GB22239/55A GB798644A (en) 1955-08-03 1955-08-03 Improvements in or relating to the purification of carbon or graphite articles
CH332127D CH332127A (en) 1955-08-03 1955-08-10 Process for removing impurities from carbon objects
DEU3462A DE1036233B (en) 1955-08-03 1955-08-11 Method and device for removing boron and other impurities from carbon or graphite
FR1135459D FR1135459A (en) 1955-08-03 1955-08-12 Carbon purification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22239/55A GB798644A (en) 1955-08-03 1955-08-03 Improvements in or relating to the purification of carbon or graphite articles

Publications (1)

Publication Number Publication Date
GB798644A true GB798644A (en) 1958-07-23

Family

ID=10176163

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22239/55A Expired GB798644A (en) 1955-08-03 1955-08-03 Improvements in or relating to the purification of carbon or graphite articles

Country Status (6)

Country Link
BE (1) BE540521A (en)
CH (1) CH332127A (en)
FR (1) FR1135459A (en)
GB (1) GB798644A (en)
LU (1) LU33787A1 (en)
NL (2) NL199674A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7517516B2 (en) 2003-10-10 2009-04-14 Toyo Tanso Co., Ltd. High purity carbonaceous material and ceramic coated high purity carbonaceous material
WO2012136192A2 (en) * 2011-04-06 2012-10-11 Forschungszentrum Jülich GmbH Method for producing carbon materials and graphite materials, and carbon materials and graphite materials produced by means of said method
CN111186834A (en) * 2020-01-09 2020-05-22 成都理工大学 Method for preparing high-purity graphite by adopting natural crystalline graphite
CN113603085A (en) * 2021-03-19 2021-11-05 哈尔滨理工大学 Method for efficiently purifying graphite
CN115744897A (en) * 2022-11-04 2023-03-07 西安时代烯科新能源科技有限公司 Method for purifying graphite by using fluorine-containing organic matter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109867281A (en) * 2019-04-10 2019-06-11 哈尔滨理工大学 A kind of preparation method of high purity graphite

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7517516B2 (en) 2003-10-10 2009-04-14 Toyo Tanso Co., Ltd. High purity carbonaceous material and ceramic coated high purity carbonaceous material
CN1623894B (en) * 2003-10-10 2012-09-05 东洋炭素株式会社 High purity carbonaceous material and ceramic coated high purity carbonaceous material
WO2012136192A2 (en) * 2011-04-06 2012-10-11 Forschungszentrum Jülich GmbH Method for producing carbon materials and graphite materials, and carbon materials and graphite materials produced by means of said method
WO2012136192A3 (en) * 2011-04-06 2012-11-29 Forschungszentrum Jülich GmbH Method for producing carbon materials and graphite materials, and carbon materials and graphite materials produced by means of said method
CN111186834A (en) * 2020-01-09 2020-05-22 成都理工大学 Method for preparing high-purity graphite by adopting natural crystalline graphite
CN113603085A (en) * 2021-03-19 2021-11-05 哈尔滨理工大学 Method for efficiently purifying graphite
CN115744897A (en) * 2022-11-04 2023-03-07 西安时代烯科新能源科技有限公司 Method for purifying graphite by using fluorine-containing organic matter

Also Published As

Publication number Publication date
FR1135459A (en) 1957-04-29
CH332127A (en) 1958-08-31
NL104972C (en)
NL199674A (en)
LU33787A1 (en)
BE540521A (en)

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