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High flash point pitch based impregnant for carbon and graphite and process for producing thereof
High flash point pitch based impregnant for carbon and graphite and process for producing thereof
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机译:用于碳和石墨的高闪点沥青基浸渍剂及其生产方法
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摘要
An impregnating pitch having a softening point of about 90° C. and a flash point above about 280° C. is prepared from a coal tar liquid. Preparation of the pitch involves sparging coal tar liquid with steam or an inert gas while maintaining the liquid at a temperature of from about 260° C.-270° C.
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