Through adding various kinds of used plastics in different proportions into coal for coking, the variation on cokenature and yield of coking products obtained is studied.
通过在炼焦煤中添加不同种类、不同比例的废塑料，研究了所得焦炭的性质和焦化产品产率的变化。
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Commonly used for cast iron carbon additive materials are: artificial graphite, calcined petro coke, nature graphite, coke, and as the mixture with these materials.