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。
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.
本文论述了精蒽提纯溶剂选择的理论根据和试验依据，研究了以DMF及溶剂A为溶剂提高精蒽收率的方法。
Theoretical and experimental basis of choosing solvent for refining anthracene is discussed and the method of improving anthracene yield by solvent DMF and solvent a is studied in this paper.
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。
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。
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。
Main business: coal, Metallurgical coke, Bituminous coal, Coking benzene, Fuel oil, Mixed oil, Refined Naphthalene, washed oil, Anthracene oil etc. GB products.
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