铝电解生产中，碳素阳极两组分(石油焦和沥青结焦)的活性差异带来阳极的选择性氧化，是造成碳素阳极过量消耗的主要原因之一。
Selective oxidation of carbon anode in aluminum electrolysis caused by reactivity difference between pitch coke and petroleum coke is one of the main causes for excess carbon consumption.
碳素厂在生产碳阳极时，需加入一定量沥青作为粘合剂。
Certain amount of pitch used as adhesive agent is needed when carbon positive poles are produced in carbon plant.
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