DE1063076B - Process for the production of carbon and graphite molded bodies - Google Patents
Process for the production of carbon and graphite molded bodiesInfo
- Publication number
- DE1063076B DE1063076B DEB47109A DEB0047109A DE1063076B DE 1063076 B DE1063076 B DE 1063076B DE B47109 A DEB47109 A DE B47109A DE B0047109 A DEB0047109 A DE B0047109A DE 1063076 B DE1063076 B DE 1063076B
- Authority
- DE
- Germany
- Prior art keywords
- coal
- production
- carbon
- molded bodies
- graphite molded
- 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.)
- Pending
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
Description
Verfahren zur Herstellung von Kohle- und Graphitformkörpern Dichte Kohle- und Graphitformkörper, die als Ausgangsmaterial für die Herstellung von Elektroden, Graphit u. a. dienen, werden im allgemeinen aus Petrolkoks oder Pechkoks hergestellt. Man hat bereits vorgeschlagen, Steinkohlen auf dichte Kohlekörper zu verarbeiten. Hierzu bedarf es aber zusätzlicher Verfahrensschritte, z. B. einer Oxydation oder einer Extraktion.Process for the production of carbon and graphite moldings Density Carbon and graphite moldings, which are used as the starting material for the manufacture of electrodes, Graphite and others are generally made from petroleum coke or pitch coke. It has already been proposed to process hard coal on dense coal bodies. However, this requires additional process steps, e.g. B. an oxidation or an extraction.
Es wurde nun gefunden, daß man aus bituminösen Steinkohlen ohne sonderlichen Aufwand, insbesondere ohne Apparateaufwand, dichte Kohlekörper herstellen kann, wenn man die Kohle fein mahlt, mit Pech und Ammoniumsulfat mischt, sodann formt und verkokt bzw. graphitiert.It has now been found that bituminous coal can be made without any special Can produce dense carbon bodies with effort, in particular without the need for equipment, if you grind the coal finely, mix it with pitch and ammonium sulfate, then shape it and coked or graphitized.
Die Körnung der Kohle soll unter 200 #t, besser unter 100 w liegen. Eine günstige Kornverteilung liegt z. B. bei 90°/o des Staubes kleiner als 60 #t vor. Der Zusatz an Pech beträgt 15 bis 35 Gewichtsprozent, bezogen auf Kohle, j e nach deren Feinheit. Der günstigste Bereich für Pech liegt etwa zwischen 20 und 40 Gewichtsprozent. Die Menge an Ammoniumsulfat liegt zwischen 5 und 20 Gewichtsprozent. In den meisten Fällen genügen 10°/o. Das Ammoniumsulfat kann als trockenes Pulver oder als wässerige Lösung angewendet werden.The grain size of the coal should be below 200 #t, better below 100 w. A favorable grain distribution is z. B. at 90% of the dust less than 60 #t before. The addition of pitch is 15 to 35 percent by weight, based on coal, j e according to their fineness. The most favorable range for bad luck is somewhere between 20 and 40 percent by weight. The amount of ammonium sulfate is between 5 and 20 percent by weight. In most cases 10 ° / o is sufficient. The ammonium sulfate can come as a dry powder or applied as an aqueous solution.
Es ist zweifellos überraschend, daß Ammoniumsulfat, das sich in der Wärme zersetzt, zur Herstellung dichter Kohleformlinge geeignet ist. Der Grund dafür dürfte in dem unübersichtlichen Nebeneinander verschiedenartiger Reaktionen zwischen der Kohle bzw. ihrem Bitumen und dem Ammoniumsulfat zu sehen sein.It is undoubtedly surprising that ammonium sulfate found in the Heat decomposes, is suitable for the production of dense coal moldings. The reason for this in the confusing juxtaposition of different reactions between the coal or its bitumen and the ammonium sulfate can be seen.
Beispiel 75 Gewichtsteile Steinkohle (25%flüchtige Bestandteile, 1% Asche, 90% kleiner als 60 l,) werden mit 25 Gewichtsteilen Pech (E. P. 45°) und 10 Gewichtsteilen Ammoniumsulfat bei 100° C im Kneter vermischt und zu Formlingen verpreßt. Die Briketts werden unter Luftabschluß auf 700 bis 1200° C erhitzt. Man erhält feste, sehr dichte Kohleformkörper.Example 75 parts by weight of hard coal (25% volatile components, 1% Ash, 90% smaller than 60 l) are mixed with 25 parts by weight of pitch (E. P. 45 °) and 10 parts by weight of ammonium sulfate mixed in a kneader at 100 ° C and formed into moldings pressed. The briquettes are heated to 700 to 1200 ° C in the absence of air. Man receives solid, very dense carbon moldings.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB47109A DE1063076B (en) | 1957-12-12 | 1957-12-12 | Process for the production of carbon and graphite molded bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB47109A DE1063076B (en) | 1957-12-12 | 1957-12-12 | Process for the production of carbon and graphite molded bodies |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1063076B true DE1063076B (en) | 1959-08-06 |
Family
ID=6968143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB47109A Pending DE1063076B (en) | 1957-12-12 | 1957-12-12 | Process for the production of carbon and graphite molded bodies |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1063076B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3532463A (en) * | 1966-03-14 | 1970-10-06 | Charbonnage De France | Slightly graphitizable carbons and a method for their production |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE928151C (en) * | 1944-04-16 | 1955-05-26 | Robert Dr-Ing Meldau | Process for the production of molded hard coal bodies |
-
1957
- 1957-12-12 DE DEB47109A patent/DE1063076B/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE928151C (en) * | 1944-04-16 | 1955-05-26 | Robert Dr-Ing Meldau | Process for the production of molded hard coal bodies |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3532463A (en) * | 1966-03-14 | 1970-10-06 | Charbonnage De France | Slightly graphitizable carbons and a method for their production |
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