DE513278C - Objects made of carbon and processes for their manufacture - Google Patents

Objects made of carbon and processes for their manufacture

Info

Publication number
DE513278C
DE513278C DED56602D DED0056602D DE513278C DE 513278 C DE513278 C DE 513278C DE D56602 D DED56602 D DE D56602D DE D0056602 D DED0056602 D DE D0056602D DE 513278 C DE513278 C DE 513278C
Authority
DE
Germany
Prior art keywords
carbon
manufacture
processes
objects made
objects
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
DED56602D
Other languages
German (de)
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.)
Deutsche Edelstahlwerke AG
Original Assignee
Deutsche Edelstahlwerke AG
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 Deutsche Edelstahlwerke AG filed Critical Deutsche Edelstahlwerke AG
Priority to DED56602D priority Critical patent/DE513278C/en
Application granted granted Critical
Publication of DE513278C publication Critical patent/DE513278C/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
    • 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
    • C04B35/521—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 by impregnation of carbon products with a carbonisable material
    • 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

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)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Description

Gegenstände aus Kohlenstoff und Verfahren zu ihrer Herstellung Für viele Zwecke, z. B. für solche der technischen Elektrolyse, sind geformte Gegenstände aus Kohlenstoff nötig, die eine gute Festigkeit besitzen und möglichst wenig Asche enthalten sollen. Ihre Herstellung erfolgt bisher in der Weise, ' daß pulvriges, amorphen Kohlenstoff enthaltendes Material mit Teer angerührt und das Gemenge dann in die gewünschten Formen gepreßt und auf hohe Temperatur erhitzt wird. Infolge ungenügender Reinheit der Ausgangsstoffe enthalten die fertigen Gegenstände immer Asche, also oxydische Bestandteile, und zwar mindestens einige Zehntel Prozent.Articles made of carbon and process for their manufacture For many purposes, e.g. B. for those of technical electrolysis, are shaped objects made of carbon, which have good strength and as little ash as possible should contain. Up to now, they have been produced in such a way that powdery, amorphous carbon-containing material mixed with tar and then the mixture pressed into the desired shapes and heated to a high temperature. As a result The finished objects always contain insufficient purity of the raw materials Ash, i.e. oxidic constituents, at least a few tenths of a percent.

Erfinder haben nun erkannt, daß man Gegenstände, z. B. Tiegel, für die Gasbestimmung in Metallen aus praktisch aschenfreiem Kohlenstoff erhält, wenn man dazu reinen Zucker verwendet. Daraus gewonnene, fein gepulverte Kohle wird mit Zuckerpulver oder Zuckerlösung innig gemischt, das Gemisch in eine Porzellanform gestampft und darin langsam auf Rotglut erhitzt, bis keine brenzlichen Dämpfe mehr entweichen. Nach dem Erkalten hat man eine locker zusammenhängende, d. h. poröse Masse, die nicht zerfällt und sehr leicht mechanisch bearbeitbar ist. Um nun dem Formling die nötige Festigkeit zu geben, wird er mit einer reinen Zuckerlösung durchtränkt und vorsichtig auf höhere Temperatur erhitzt; dieses Verfahren wird mehrfach wiederholt. Schließlich wird der Formling einige Zeit auf eine- Temperatur über =ooo ° erhitzt. PATENTANSPRÜCHE: z. Gegenstände, insbesondere Tiegel, aus Kohlenstoff, dadurch gekennzeichnet, daß dieselben aus reiner Zuckerkohle bestehen. z. Verfahren zur Herstellung von Gegenständen nach Anspruch z, dadurch gekennzeichnet, daß ein Gemisch aus reiner Zuckerkohle und Zuckerlösung nach dem Verformen und Brennen auf Rotglut mit reiner Zuckerlösung durchtränkt und nochmals gebrannt wird. Inventors have now recognized that objects such. B. Crucible, obtained for gas determination in metals from practically ash-free carbon, if you use pure sugar. The finely powdered coal obtained from this is mixed intimately with sugar powder or sugar solution, the mixture is tamped into a porcelain mold and slowly heated to red heat until no more fiery vapors escape. After cooling, you have a loosely cohesive, ie porous, mass that does not disintegrate and is very easy to process mechanically. In order to give the molding the necessary strength, it is soaked with a pure sugar solution and carefully heated to a higher temperature; this procedure is repeated several times. Finally, the molding is heated to a temperature of over = ooo ° for some time. PATENT CLAIMS: e.g. Objects, in particular crucibles, made of carbon, characterized in that they consist of pure sugar carbon. z. Process for the production of objects according to claim z, characterized in that a mixture of pure sugar charcoal and sugar solution is soaked with pure sugar solution after shaping and firing on red heat and is fired again.

DED56602D 1928-09-21 1928-09-21 Objects made of carbon and processes for their manufacture Expired DE513278C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED56602D DE513278C (en) 1928-09-21 1928-09-21 Objects made of carbon and processes for their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED56602D DE513278C (en) 1928-09-21 1928-09-21 Objects made of carbon and processes for their manufacture

Publications (1)

Publication Number Publication Date
DE513278C true DE513278C (en) 1930-11-25

Family

ID=7056932

Family Applications (1)

Application Number Title Priority Date Filing Date
DED56602D Expired DE513278C (en) 1928-09-21 1928-09-21 Objects made of carbon and processes for their manufacture

Country Status (1)

Country Link
DE (1) DE513278C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116135B (en) * 1958-07-18 1961-10-26 Pechiney Prod Chimiques Sa Process for the production of heat-resistant thermal insulation compounds or bodies
EP0119474A1 (en) * 1983-02-19 1984-09-26 Forschungszentrum Jülich Gmbh Method of producing an electrode for use as an anode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1116135B (en) * 1958-07-18 1961-10-26 Pechiney Prod Chimiques Sa Process for the production of heat-resistant thermal insulation compounds or bodies
EP0119474A1 (en) * 1983-02-19 1984-09-26 Forschungszentrum Jülich Gmbh Method of producing an electrode for use as an anode

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