This paper describes a new technology producing industrial fluorene, which uses heavy washing oil as raw material, rectifies and washes it directly, and then makes it crystallize.
介绍了一种工业芴新的生产工艺———以重洗为原料 ,直接进行精馏及洗涤结晶。
参考来源 - 从重质洗油中提取工业芴的工艺研究·2,447,543篇论文数据，部分数据来源于NoteExpress
N a white insoluble crystalline solid used in making dyes. Formula: (C6H4)2CH2 芴
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