| 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. The achieved results are consistent with the data obtained in the experiment. 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. Owing to the experiment the conclude is drawn:It may draw the power of the solvent dissolving.In the paper quantitative analysis is done by high performance liquid chromatography to crude anthracene and the separated products, and the HPLC conditions: inspected wavelengh: 254nm;flow velocity:lml/g; the volume ratio of the methanol/water solution:81/19 ;and inspected temperature: room temperature. Every component content of crude anthracene is inspected,Anthracene 52.07%, Phenanthrene 10.3% and Carbazole 32.35%.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. So benzene and DMF from the some solvents separate crude anthracene. 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.
|
PDF Full Text Request