US2640787A - Manufacture of carbonaceous molding compositions - Google Patents

Manufacture of carbonaceous molding compositions Download PDF

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Publication number
US2640787A
US2640787A US53992A US5399248A US2640787A US 2640787 A US2640787 A US 2640787A US 53992 A US53992 A US 53992A US 5399248 A US5399248 A US 5399248A US 2640787 A US2640787 A US 2640787A
Authority
US
United States
Prior art keywords
mixture
coal
mixing
softening agent
manufacture
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
US53992A
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English (en)
Inventor
Greaves Charles Desmond
Parker William Duncan
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CD Patents Ltd
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CD Patents Ltd
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 CD Patents Ltd filed Critical CD Patents Ltd
Application granted granted Critical
Publication of US2640787A publication Critical patent/US2640787A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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
    • C10L5/16—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders with bituminous binders, e.g. tar, pitch

Definitions

  • One object of this invention is to produce from coal a composition which may conveniently be moulded by extrusion. Another object is to produce such a composition which, after moulding, may be heated rapidly without intumescence taking place. A further object is to produce from such a composition strong, tough, moulded carbon articles which are of simple or of complex shape.
  • a method of making a carbonaceous moulding composition consists in mixing at an elevated temperature subdivided coal and a softening agent as hereinafter defined.
  • the coals suitable for use in this invention are those having up to 25% volatile matter on the dry ash-free basis, preferably between 6% and 20%.
  • the particle size of the sub-divided coal may be about 80 to 150 mesh British Standard sieve, but gradings of coarser and finer particles may be employed according to the type of moulded product it is desired to make.
  • a suitable temperature for the mixing operation is from 60-180 C. -It is advantageous to digest the mixture for a considerable period, say 4-8 hours.
  • thracene, phenanthrene or like aromatic hydrocarbons such derivatives including phthalic acidesters, aryl esters of phosphoric acid; naphthenic and heterocyclic compounds; petroleum residues, soft bitumen; and chlorinated paraffin waxes.
  • the proportion of softening agent may conveniently be from 10% to 30% by weight of the mixture.
  • a light oil such, for example, as a solvent naphtha.
  • non-agglutinating coals may be .blended with coals of more agglutinating or of by adding to the mixture an oxidizing or dehy-. drogen-ating agent, the rate of heating of the' resultant composition after moulding may be.
  • the dehydrogenating agent for example sulphur or selenium or nitrobenzene, must be of such a softening agent the r 3 character and must be 'added in such a manner (e. g. after cooling of the mixture) that it does not react with the mixture to a significant extent, and hence does not harden the mixture, until after moulding has been completed.
  • the invention includes a method of making a carbonaceous moulding composition, especially an extrusible composition, which method consists in mixing at an elevated temperature subdivided coal and a softening agent as hereinbef'ore defined and adding tothe mixture after 'it' has cooled an oxidizing ordehydrogenating agent such as sulphur, or selenium or such as nitrobenzene.
  • swell inhibitor such for example as finely subdivided natural graphite which contributes to the flow properties of'the composition.
  • the invention includes, therefore,- amethod of making a moulded carbon product which method'consists in. submitting" a composition made as above-described to a mouldingor shaping operation and heating the shaped article under" non -oxidizing conditions to a'temperature' of; atleast 550 C., and preferably above 700 C.
  • composition was then removed'from the mixing- Example II 300 gm. of 21:8. Wales carbonaceous coal (3.1% ash and 17.11% volatile-matter 'on the dry ash- Intimate admixture is .4 free basis) which had been ground to pass through a 200 mesh B.
  • S. sieve were mixed with 50 gm. of No. 2 anthracene oil and 50 gm. solvent naphtha in a Z-blade mixer at a temperature of -110 C. After 2 hours digestion had elapsed the mixture was allowed to cool to about 30 C. and a mixture consisting of 50 gm., of finely divided natural graphite, 12 gm. of sulphur (dehydrogenating agent) and 25 gm. of solvent naphtha was added and mixing was continued for-a. further 1'" hour.
  • The: composition was removed fromthe-mixing machine and-was extruded and heated in the manner described in Example I except that the rate of temperature 15.
  • a process for the manufacture of a doughlike extrusibl'e-composition consisting mainly-of coal from non-bitmnincus, non-agglutina'ting coal, which process comprises mixing th coal, 95% (if-which passes a 200" mesh-sieve, with a relatively high boiling softening agent in the amount of 10 to 30 by weight'of the mixture, heating the mixture to a temperature between 60 C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Geology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Civil Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Ceramic Products (AREA)
US53992A 1947-10-15 1948-10-11 Manufacture of carbonaceous molding compositions Expired - Lifetime US2640787A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB272838X 1947-10-15
GB111048X 1948-10-11

Publications (1)

Publication Number Publication Date
US2640787A true US2640787A (en) 1953-06-02

Family

ID=26248063

Family Applications (1)

Application Number Title Priority Date Filing Date
US53992A Expired - Lifetime US2640787A (en) 1947-10-15 1948-10-11 Manufacture of carbonaceous molding compositions

Country Status (4)

Country Link
US (1) US2640787A (en:Method)
BE (1) BE485310A (en:Method)
CH (1) CH272838A (en:Method)
GB (1) GB648539A (en:Method)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881082A (en) * 1954-11-16 1959-04-07 Elly Maria Dorothea Croning Molding material for producing shell molds for casting purposes
US2985599A (en) * 1958-08-20 1961-05-23 Vickers Electrical Co Ltd Platinum carbon rods for electron microscope technique
US3239361A (en) * 1961-10-02 1966-03-08 Standard Oil Co Bituminous pavement
US3254143A (en) * 1963-07-29 1966-05-31 Pennsalt Chemicals Corp Method for molding carbonized bodies
US3383439A (en) * 1965-03-18 1968-05-14 Atomic Energy Commission Usa Process for making graphite
US3915906A (en) * 1972-04-01 1975-10-28 Bergwerksverband Gmbh Processes for the production of gasket materials from coal
US4224079A (en) * 1978-04-20 1980-09-23 Mobil Oil Corporation Asphaltic paving compositions and method of preparation from solvent refined coal

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989408A (en) * 1958-10-24 1961-06-20 Union Carbide Corp Method and mix composition for producing oxidation resistant carbon articles
DE3335484A1 (de) * 1983-09-30 1985-04-11 C. Deilmann AG, 4444 Bad Bentheim Verfahren zur herstellung reaktiver, kohlenstoffreicher massen oder koerper
DE3506439A1 (de) * 1985-02-23 1986-08-28 C. Deilmann AG, 4444 Bad Bentheim Verfahren zur herstellung reaktiver, kohlenstoffreicher presslinge
CN101358044B (zh) * 2008-07-29 2011-11-16 陈智贤 色素炭黑产品及其生产工艺

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US42163A (en) * 1864-04-05 Improved artificial fuel
US1017483A (en) * 1910-03-23 1912-02-13 Gen Electric Process of making molded conductors.
US1224641A (en) * 1916-10-06 1917-05-01 Universal Briquetting Company Method of treating coal.
US1243009A (en) * 1917-02-02 1917-10-16 Joseph Dixon Crucible Co Electrode and process of making the same.
US1559275A (en) * 1924-10-07 1925-10-27 Catherine Myler Manufacture of articles from highly refractory materials and articles formed
US1875458A (en) * 1932-09-06 William h
US2088422A (en) * 1934-12-18 1937-07-27 Frank R Kemmer Method of forming carbon electrodes
US2148133A (en) * 1935-06-25 1939-02-21 Hygrade Sylvanla Corp Molded carbon electrode and method of preparing the same
US2270199A (en) * 1940-01-05 1942-01-13 Dow Chemical Co Graphite article
US2395041A (en) * 1942-12-03 1946-02-19 Koppers Co Inc Bituminous composition and process of manufacturing the same
US2396690A (en) * 1943-05-18 1946-03-19 Koppers Co Inc Bituminous flashing cement for cold application
US2404208A (en) * 1942-07-15 1946-07-16 C D Patents Ltd Manufacture of molded articles
US2493383A (en) * 1944-12-22 1950-01-03 C D Patents Ltd Production of useful articles from coal

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US42163A (en) * 1864-04-05 Improved artificial fuel
US1875458A (en) * 1932-09-06 William h
US1017483A (en) * 1910-03-23 1912-02-13 Gen Electric Process of making molded conductors.
US1224641A (en) * 1916-10-06 1917-05-01 Universal Briquetting Company Method of treating coal.
US1243009A (en) * 1917-02-02 1917-10-16 Joseph Dixon Crucible Co Electrode and process of making the same.
US1559275A (en) * 1924-10-07 1925-10-27 Catherine Myler Manufacture of articles from highly refractory materials and articles formed
US2088422A (en) * 1934-12-18 1937-07-27 Frank R Kemmer Method of forming carbon electrodes
US2148133A (en) * 1935-06-25 1939-02-21 Hygrade Sylvanla Corp Molded carbon electrode and method of preparing the same
US2270199A (en) * 1940-01-05 1942-01-13 Dow Chemical Co Graphite article
US2404208A (en) * 1942-07-15 1946-07-16 C D Patents Ltd Manufacture of molded articles
US2395041A (en) * 1942-12-03 1946-02-19 Koppers Co Inc Bituminous composition and process of manufacturing the same
US2396690A (en) * 1943-05-18 1946-03-19 Koppers Co Inc Bituminous flashing cement for cold application
US2493383A (en) * 1944-12-22 1950-01-03 C D Patents Ltd Production of useful articles from coal

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881082A (en) * 1954-11-16 1959-04-07 Elly Maria Dorothea Croning Molding material for producing shell molds for casting purposes
US2985599A (en) * 1958-08-20 1961-05-23 Vickers Electrical Co Ltd Platinum carbon rods for electron microscope technique
US3239361A (en) * 1961-10-02 1966-03-08 Standard Oil Co Bituminous pavement
US3254143A (en) * 1963-07-29 1966-05-31 Pennsalt Chemicals Corp Method for molding carbonized bodies
US3383439A (en) * 1965-03-18 1968-05-14 Atomic Energy Commission Usa Process for making graphite
US3915906A (en) * 1972-04-01 1975-10-28 Bergwerksverband Gmbh Processes for the production of gasket materials from coal
US4224079A (en) * 1978-04-20 1980-09-23 Mobil Oil Corporation Asphaltic paving compositions and method of preparation from solvent refined coal

Also Published As

Publication number Publication date
CH272838A (de) 1951-01-15
BE485310A (en:Method)
GB648539A (en) 1951-01-10

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