US2965931A - Improved method for pressure baking of carbon articles - Google Patents

Improved method for pressure baking of carbon articles Download PDF

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Publication number
US2965931A
US2965931A US692034A US69203457A US2965931A US 2965931 A US2965931 A US 2965931A US 692034 A US692034 A US 692034A US 69203457 A US69203457 A US 69203457A US 2965931 A US2965931 A US 2965931A
Authority
US
United States
Prior art keywords
mix
binder
sulfur
percent
substances
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 - Lifetime
Application number
US692034A
Other languages
English (en)
Inventor
Lorne B Alden
Frank P Holloway
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 BE572287D priority Critical patent/BE572287A/xx
Priority to NL232532D priority patent/NL232532A/xx
Priority to LU36527D priority patent/LU36527A1/xx
Priority to NL104811D priority patent/NL104811C/xx
Priority to US692034A priority patent/US2965931A/en
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Priority to GB33891/58A priority patent/GB874253A/en
Priority to CH6534958A priority patent/CH376889A/fr
Priority to DEU5705A priority patent/DE1100535B/de
Application granted granted Critical
Publication of US2965931A publication Critical patent/US2965931A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
    • C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders

Definitions

  • This invention relates to the use of a sulfur-containing mix in the production of shaped carbon articles by pressure baking.
  • a recently developed pressure baking method for producing carbon articles comprises confining in a refractory lined mold, a mixture of finely divided carbonaceous particles with a fusible and carbonizable carbonaceous binder susceptible of thermal decomposition subjecting the mixture within the mold to a high mechanical pressure of the order of 4500 pounds per square inch to compress the same, and passing an electrical current of about 500 amperes per square inch of compressed mixture in the mold to heat the mixture to a temperature at which substantially complete carbonizing of the binder constituent occurs.
  • pitch and certain other binder materials produce volatile substances which condense on the press, punches, and cold sections of the mold. Accumulation of such substances prevents or interferes with proper operation of the equipment, and in extreme case can occasion minor explosions.
  • the main object of the present invention is to provide means for preventing the accumulation of condensed volatile material on carbon-baking equipment employed in the process described.
  • Sulfur cannot be used with all carbonaceous binders, but only with those having a softening point less than 300 C., such binders hereafter being denominated sulfur-reactive binders.
  • This temperature limits allows the binder to be melted and distributed in the carbon aggregate before the sulfur causes excessive dehydrogenation of the binder.
  • binding materials such as coal and green coke which possess high softening temperatures cannot be used with sulfur for the purpose of the present invention.
  • Suitable binder materials are coal tar pitch, coal depolymerization pitch and wood pitch having the indicated softening point.
  • the apparent density of a brick produced from mix No. I was 1.722 grams per cc.
  • a similar brick produced under similar conditions from mix No. II was 1.738 grams per cc.
  • the longitudinal flexural strength of the brick produced from mix No. I was 3570 pounds per square inch, whereas that produced from Mix No. II was 3850 pounds per square inch.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Ceramic Products (AREA)
US692034A 1957-10-24 1957-10-24 Improved method for pressure baking of carbon articles Expired - Lifetime US2965931A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
LU36527D LU36527A1 (fr) 1957-10-24
NL104811D NL104811C (fr) 1957-10-24
BE572287D BE572287A (fr) 1957-10-24
NL232532D NL232532A (fr) 1957-10-24
US692034A US2965931A (en) 1957-10-24 1957-10-24 Improved method for pressure baking of carbon articles
GB33891/58A GB874253A (en) 1957-10-24 1958-10-23 Improvements in and relating to carbonaceous articles
CH6534958A CH376889A (fr) 1957-10-24 1958-10-23 Procédé de fabrication d'objets contenant du carbone et objet obtenu par mise en oeuvre dudit procédé
DEU5705A DE1100535B (de) 1957-10-24 1958-10-24 Verfahren zur Herstellung kohlenstoffhaltiger Formkoerper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US692034A US2965931A (en) 1957-10-24 1957-10-24 Improved method for pressure baking of carbon articles

Publications (1)

Publication Number Publication Date
US2965931A true US2965931A (en) 1960-12-27

Family

ID=24779010

Family Applications (1)

Application Number Title Priority Date Filing Date
US692034A Expired - Lifetime US2965931A (en) 1957-10-24 1957-10-24 Improved method for pressure baking of carbon articles

Country Status (7)

Country Link
US (1) US2965931A (fr)
BE (1) BE572287A (fr)
CH (1) CH376889A (fr)
DE (1) DE1100535B (fr)
GB (1) GB874253A (fr)
LU (1) LU36527A1 (fr)
NL (2) NL104811C (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092437A (en) * 1958-12-18 1963-06-04 Union Carbide Corp Process for making carbon articles
US3173973A (en) * 1962-12-06 1965-03-16 Brockway Marion Clifford Graphite dispersion
US4117051A (en) * 1975-05-30 1978-09-26 Nippon Carbon Co., Ltd. Carbon article manufacturing method
US5045298A (en) * 1988-11-04 1991-09-03 Kabushiki Kaisha Kobe Seiko Sho Carbon material and process for production thereof
EP1323685A2 (fr) * 2001-12-31 2003-07-02 Sgl Carbon Ag Procédé de fabrication des corps moulés de matériaux céramiques à renfort de fibres

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU38955A1 (fr) * 1960-07-15 1960-09-15

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1017483A (en) * 1910-03-23 1912-02-13 Gen Electric Process of making molded conductors.
US1390823A (en) * 1920-07-31 1921-09-13 Sieurin Sven Emil Burning of carbon electrodes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750502C (de) * 1939-09-30 1945-01-17 Chem Fab Joh A Benckiser G M B Verfahren zur Herstellung von nicht verklebten Kunstfasern aus eiweisshaltiger Viskose
FR1004364A (fr) * 1947-04-11 1952-03-28 Krupp Gmbh Procédé de graphitisation de corps moulés en charbon de terre
DE969619C (de) * 1954-01-27 1958-06-26 Siemens Planiawerke A G Fuer K Verfahren zur Herstellung von Kohle- und Graphitformkoerpern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1017483A (en) * 1910-03-23 1912-02-13 Gen Electric Process of making molded conductors.
US1390823A (en) * 1920-07-31 1921-09-13 Sieurin Sven Emil Burning of carbon electrodes

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092437A (en) * 1958-12-18 1963-06-04 Union Carbide Corp Process for making carbon articles
US3173973A (en) * 1962-12-06 1965-03-16 Brockway Marion Clifford Graphite dispersion
US4117051A (en) * 1975-05-30 1978-09-26 Nippon Carbon Co., Ltd. Carbon article manufacturing method
US5045298A (en) * 1988-11-04 1991-09-03 Kabushiki Kaisha Kobe Seiko Sho Carbon material and process for production thereof
EP1323685A2 (fr) * 2001-12-31 2003-07-02 Sgl Carbon Ag Procédé de fabrication des corps moulés de matériaux céramiques à renfort de fibres
EP1323685A3 (fr) * 2001-12-31 2004-03-31 Sgl Carbon Ag Procédé de fabrication des corps moulés de matériaux céramiques à renfort de fibres
US20050179152A1 (en) * 2001-12-31 2005-08-18 Moritz Bauer Process for producing shaped bodies comprising fiber-reinforced ceramic materials
US7011786B2 (en) 2001-12-31 2006-03-14 Sgl Carbon Ag Process for producing shaped bodies comprising fiber-reinforced ceramic materials

Also Published As

Publication number Publication date
LU36527A1 (fr)
BE572287A (fr)
DE1100535B (de) 1961-02-23
NL104811C (fr)
NL232532A (fr)
GB874253A (en) 1961-08-02
CH376889A (fr) 1964-04-30

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