C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 35/532 (2006.01) C04B 35/64 (2006.01)
Patent
CA 2445130
The invention relates to a method for calcining and baking shaped carbon bodies, in particular carbon or graphite electrodes in annular furnaces. The method for baking or calcining shaped carbon bodies that are covered with packing coke takes place in an annular furnace at temperatures of over 900 ~C, whereby the packing coke is additionally covered with a material containing CaO and large amounts of cristobalite and/or tridymite, with a CaO content of between 1.5 and 10 wt % and an SiO2 content of between 90 and 98.5 wt %.
La présente invention concerne un procédé de calcination et de combustion de corps carbonés formés, en particulier d'électrodes au carbone ou en graphite, dans des fours à chambre annulaire. Ce procédé de combustion ou calcination de corps carbonés formés, recouverts de coke, est mis en oeuvre dans un four à chambre annulaire à des températures supérieures à 900 ·C, ledit coke étant également enduit d'une matière contenant de l'oxyde de calcium (CaO) et riche en cristobalite et/ou tridymite, avec une teneur en CaO de 1,5 à 10 % en poids et une teneur en SiO¿2? de 90 à 98,5 % en poids.
Becker Wolfgang
Brunk Fred
Lenz Herwig
Dr. C. Otto Feuerfest Gmbh
Riches Mckenzie & Herbert Llp
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