A Device and Process Based on Ethylene Tar Polymerization Reaction
High softening point coated asphalt is a new carbon material that can improve the reversible capacity of first charge,cycle stability and battery rate performance as a negative electrode coating material for lithium batteries.In this paper,using ethylene tar as raw material,the homogeneity of catalytic reaction was improved by optimizing the reactor and polymerization process,strengthening the reaction process,and increasing the coking value and yield.The research shows that the optimum preparation parameters of the high softening point covered asphalt were as follows:preheating temperature of 180 ℃,catalyst addition of 0.5％(mass percentage),primary reactor reaction temperature of 240 ℃,secondary reactor reaction temperature of 320 ℃,tertiary reactor reaction temperature of 380 ℃,stirring speed of all levels of reactor was 3 000 r/min.The reaction time was 480 min and the reaction pressure was 1 MPaG.The results can provide a reference for the production process of high softening point coated asphalt.
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维普
