Anti-abrasion graphitization cathode carbon blocks used for aluminum electrolytic cell and manufacturing method thereof

The invention discloses an anti-abrasion graphitization cathode carbon block used for an aluminum electrolytic cell and a manufacturing method thereof, relating to nonmetallic material field of metallurgical engineering materials. In the invention, high-sulfur petroleum coke is used as one of the ra...

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Hauptverfasser: HUANG SIXIN, ZHANG SHIGONG, SUN PEIYANG, WANG YONGQING, MA LIQIAO, GE SHAOQI
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention discloses an anti-abrasion graphitization cathode carbon block used for an aluminum electrolytic cell and a manufacturing method thereof, relating to nonmetallic material field of metallurgical engineering materials. In the invention, high-sulfur petroleum coke is used as one of the raw materials to manufacture the graphitization cathode carbon block, wherein, the sulphur content ofthe high-sulfur petroleum coke is 1-3%. The cathode carbon block comprises the following raw materials in weight percentage: 80-85% of high-sulfur petroleum coke with sulphur content being 1-3% and 15-20% of modified coal tar pitch. A secondary high-temperature calcination technology is adopted in the working procedure, and the sulfur content in the high-sulfur petroleum coke is effectively removed; a large-scale vibration forming technology and a lengthwise graphitization technology are adopted to replace dipping and secondary rebaking procedures in the prior art, thus the graphitization time of the products is reduc