1·In Estonia three types of shale tar have been used as alternatives to anthracene oil or carbolineum.
在爱沙尼亚，已有三种页岩焦油用作蒽油或氯化蒽油的替换物。
2·Fluorene is an important material in organic chemical industry. It is usually extracted from the washing oil or anthracene oil distillate of coal tar.
芴是重要的有机化工原料，多从煤焦油的洗油馏份中提出，也可从蒽油中提出。
3·Main business: coal, Metallurgical coke, Bituminous coal, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.
主营：煤炭、冶金焦、煤焦油、煤沥青、焦化苯、燃料油、混合油、精萘、工业萘、硫酸铵、轻苯、粗苯、洗油、蒽油等国标产品。
4·Main business: coal, Metallurgical coke, Bituminous coal, coal tar pitch, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.
主营：煤炭、冶金焦、煤焦油、煤沥青、焦化苯、燃料油、混合油、精萘、工业萘、硫酸铵、轻苯、粗苯、洗油、蒽油等国标产品。
5·The new process for refined anthracene and refined carbazole extracted from anthracene oil is described, the problems to be cared in installation and production of equipment are analyzed.
介绍了从蒽油中提取精蒽和精咔唑的新工艺，分析了设备安装及生产中需要注意的问题。
6·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。