C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
18/1
C25B 11/12 (2006.01) C01B 31/04 (2006.01) C04B 35/52 (2006.01) F27D 11/04 (2006.01) H05B 3/00 (2006.01)
Patent
CA 1166410
GRAPHITIZATION SYSTEM METHOD AND APPARATUS Abstract Amorphous carbon bodies forming a lengthwise series horizontal string or column 26 are converted to graphite by the Joule effect in a semi-cylindrical metal shell 20 with a refractory lining 22 and con- taining particulate thermal insulation medium 28. When the conversion to graphite is complete the insulation medium is dumped through the bottom of the metal shell into a hopper 50 and transferred for re-use while hot. Air pollution control is facilitated and energy and capital costs are lowered by specialization of equipment, retention of sensible heat and shorter cycle times, allowing operation with less equipment and higher production rates.
408466
Great Lakes Carbon Corporation
Smart & Biggar
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