第 39 卷第 5 期 | ![](image2/wentou.gif) | Vol. 39 No. 5 | 2009 年 10 月 | Oct 2009 |
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所属栏目:有机合成原料
萃取法从乙烯焦油中提取萘的研究 |
李艳芳,曹祖宾,王益民,马海燕
(辽宁石油化工大学 化学与材料科学学院,辽宁 抚顺 113001) |
摘 要:研究了以二甘醇作溶剂萃取乙烯焦油窄馏分(205~225℃)中萘的可行性,考察了萃取剂用量、萃取温度、萃取时间对萃取效果的影响。通过气相色谱定性检测了萘并定量测得了萃取前后萘的纯度的变化。由实验得出:当剂油比为8 ∶ 1(m/m)、萃取温度70℃、萃取时间50 min时,萘的单程收率达到90%,2次萃取后得到的萘为白色略带微黄晶体,纯度95.0 %,比原料中萘的纯度提高了42.3%。 |
关键词:乙烯焦油;萘;二甘醇;萃取;气相色谱 |
中图分类号:TQ241.5+2 文献标识码:A 文章编号:1009-9212(2009)05- 0050-03 |
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Study on Extraction of Naphthalene from Ethylene Tar |
LI Yan-fang,CAO Zu-bin,WANG Yi-min,MA Hai-yan
(College of Chemical and Material Science,Liaoning Petrochem University,Fushun 113001,China) |
Abstract:The feasibility of extraction of naphthalene from the narrow fraction(205~230℃)of ethylene tar with diglycol has been studied. Results showed that the extraction ration of naphthalene was up to 90% under the operation conditions of mass ration 8.0 of extraction agent to raw material,temperature at 70℃ and extraction time 50 min. The purity of naphthalene was 95% after twice extraction,42.3% higher than that before extraction. |
Key words:ethylene tar;naphthalene;diglycol;extraction;GC |
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基金项目:中石油大庆石化公司基金项目(大庆石化-2007-1581)。
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作者简介:李艳芳(1981-),女,山东济宁人,硕士研究生,研究方向:重油加工。(E-mail:liyanfang198188@126.com)
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联 系 人:曹祖宾,教授。(E-mail:caozubin@tom.com)
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收稿日期: 2009-09-1
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