Tests show that rubber oil can be obtained with KT solvent refining, and the by-product can be used as catalytic cracking stock.

通过实验证明，KT液溶剂精制工艺能生产出橡胶用油，其副产物抽余油可作为催化裂化原料。

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The extraction and refining process includes distillating washing oil or anthracene oil to get fluorene distillate, then crystallizing the fluorene distillate to get fluorene using cooling or solvent.

芴的提取精制过程是先间歇蒸馏洗油馏份或蒽油馏份切取芴主馏份，再采用冷却结晶法或溶剂结晶法精制芴主馏份得到芴。

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Its manufacture process includes the deasphalting of the vacuum-pressure residual oil, solvent refining, solvent-dewax, refining, shaping and packing.

它通过减压渣油脱沥青、溶剂精制、溶剂脱蜡脱油、精制、成型、包装等工艺过程制备而成。

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