Synthetic reaction mechanism of pitch resin at lower temperature by using phenanthrene and benzaldehyde 用菲和苯甲醛合成沥青树脂的反应机理
2.
Characterization of biodegradation of phenanthrene and other aromatic substrates by sphingomonas sp . gy2b 降解菲的特性及其对多种芳香有机物的代谢研究
3.
Producer of chemicals derived from coal tar , located in china . products include derivatives of naphthalene , anthracene , phenanthrene , and fluorene -生产销售乙醛酸乙二醛醇脂- 12草酸等有机化工品，包括公司简介产品介绍等
4.
At the same time the difference of the solubility to the isomeric compound anthracene and phenanthrene in the different solvents is discussed by the aspect of the activity coefficient 同时，还对蒽、菲同分异构体在不同溶剂中的溶解度的差异，从活度系数方面进行了探讨。
5.
Through the experiment , it is known that the dissolving effect of benzene to phenanthrene in some studied organic solvent is best , moreover dmf to carbazole is best 通过实验可知，在所考察的溶剂中苯对菲的溶解效果最好，太原理工大学硕士学位论文而dmf对咔哇的溶解效果最好。
6.
Phenanthrene is one of three - aromatic pahs and distributes in environments widely , which causes diseases of human respiration system and skin , and induces mutation , aberrance and carcinogen of fish and other animals 菲为一种广泛分布于自然环境的三环芳烃，能导致人类呼吸系统和皮肤的病变，可诱发鱼类和其它生物的突变、畸变与癌变。
7.
A new method on extraction of phenanthrene from crude anthraceneis given , which includes azeotropic dissolution with ethylene glycol , extraction of carbon tetrachloride , treatment of sulfuric acid and ethyl alcohol recrystallization , in the end , the best process is obtained 研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线
8.
Abstract : a new method on extraction of phenanthrene from crude anthraceneis given , which includes azeotropic dissolution with ethylene glycol , extraction of carbon tetrachloride , treatment of sulfuric acid and ethyl alcohol recrystallization , in the end , the best process is obtained 文摘:研究了从粗蒽中提取菲的方法，即用乙二醇对原料进行共沸，以四氯化碳为溶剂并用硫酸处理，最后用无水乙醇重结晶，制定出最佳的工艺路线
9.
In the paper the solubilities of anthracene , phenanthrene and carbazole are studied in benzene , toluene , xylene , the heavy solvent oil , clohexane , dmf , pyridine , cyclohexanone and acetone , and qualitative analysis is done by three aspects in the process of the solute dissolved the solvent : ( l ) the molecular struture and the interspace struture ; ( 2 ) reciprocity force of the intermolecule ; ( 3 ) the cohesion energy 本文考察了蒽、菲、咔唑在苯、甲苯、二甲苯、重溶剂油、环己烷、 dmf 、吡啶、环己酮和丙酮等有机溶剂中的溶解度。并从三个方面对溶剂溶解固体定性分析： ( 1 )分子结构及空间结构， ( 2 )分子之间相互作用力， ( 3 )内聚能，得到的结果与实验得到的数据基本一致。
10.
At 70c , dissolved time 60min , solvent ratio 125 : 50ml / g , the effect of benzene is best to separating phenanthrene of crude anthracene , phenanthrene content of crude anthracene is increased from 10 . 3 % to 41 . 7 % . at 120c , dissolved time 80min , the solvent ratio 75 : 30ml / g , the effect of dmf is best to separate carbazole from the compound of anthracene and carbazole , and in the high or common temperature when the compound is separated the solid content may be seen that anthracene content is almost . so , the common temperature is selected in the filtration of the experiment 苯在70 ’ c 、溶解时间60min 、溶剂比125 : 5oml / g ，对分离粗葱中菲的效果最好，可以使粗葱中菲的含量从10 . 3 %提到41 . 7 % 。 dmf在120 ’ c 、溶解时间somin 、溶剂比75 : 30ml / g时，对分离葱和咔哇混合物中咔哇的效果最好，并且从高温和低温下分离后得到固体含量可以看出，在这两个温度下过滤得到葱的含量差不多，因此，本实验选择在常温下过滤。
