欢迎来到天天文库
浏览记录
ID:34532025
大小:1.70 MB
页数:5页
时间:2019-03-07
《蒽_菲_咔唑混合物乳化液膜分离技术的研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、第30卷第2期石河子大学学报(自然科学版)Vol.30No.22012年4月JournalofShiheziUniversity(NaturalScience)Apr.2012文章编号:1007-7383(2012)02-0244-05蒽、菲、咔唑混合物乳化液膜分离技术的研究张晓鹏,李晓月,郭瑞丽(石河子大学化学化工学院/新疆兵团化工绿色过程重点实验室/省部共建国家重点实验室培育基地,石河子832003)摘要:粗蒽中蒽、菲、咔唑的分离与精制技术是煤炭精细化工研究的热点,本文利用乳化液膜分离技术研究了煤焦油蒽油馏分中蒽、菲、咔唑混合物的分离工艺。首先考察了苯、甲苯对蒽、菲、咔唑混合物中菲的
2、初步分离情况,然后探讨了不同外相组成、表面活性剂种类、助剂、载体浓度和分离时间等因素对乳化液膜法分离精制蒽的影响。实验结果表明:甲苯可选择性溶解蒽、菲、咔唑混合物中的菲,菲的纯度可达77.14%;在以糠醛为内相,水为膜相(糠醛/水=1/5),甲苯和DMF(1/1)为外相,质量分数0.3%的Span-80为表面活性剂,质量分数0.5%的NaCl和质量分数2.0%的尿素为助剂,分离温度为95℃,分离时间为10min的条件下,精蒽的纯度可达93.68%。关键词:蒽;菲;咔唑;液膜;分离中图分类号:Q943.2文献标识码:AStudyonSeparationoftheMixtureofAnthr
3、acene,PhenanthreneandCarbazolebyEmulsionLiquidMembraneZHANGXiaopeng,LIXiaoyue,GUORuili(SchoolofChemistryandChemicalEngineering/KeyLaboratoryforGreenProcessingofChemicalEngineeringofXinjiangBingtuan,ShiheziUniversity,Shihezi832003,China)Abstract:Theseparationandrefiningtechnologyofanthracene,phena
4、nthreneandcarbazolefromcrudanthraceneisahottopicinthecoalfinechemicalindustry.Inthispaper,theseparationprocessofthemixtureofanthracene,phenanthreneandcarbazolefromanthraceneoilfractionincoaltarwasstudiedbyusingemulsionliquidmembranetechnique.Firstofall,theeffectofben-zeneandtolueneonthepreliminar
5、yseparationofphenanthrenefromthemixturewasinvestigated.Then,theeffectfactorsinclu-dingthecompositionoftheexternalphase,surfactants,additives,concentrationsofcarriers,andseparationtimeonthesepara-tionandpurificationofanthracenewerediscussedthroughemulsionliquidmembrane.Theresultsshowedthat,phenant
6、hrenecouldbeselectivelydissolvedbytoluenefromthemixture,andthepurityofphenanthrenecouldreach77.14%;underthecondi-tionsoffurfuralasinnerphase,water(furfural/water=1/5)asmembranephase,tolueneandDMF(1/1)asouterphase,Span-80massfractionof0.3%assurfactants,NaClmassfractionof0.5%andureamassfractionof2.
7、0%asadditives,temperature95℃,andseparationtime10min,thepurityofrefinedanthracenecouldreach93.68%.Keywords:anthracene;phenanthrene;carbazole;emulsionliquidmembrane;separation蒽、菲、咔唑是来源于煤化工独特的资源,其中泛的用途。蒽具有一定的不可替代性,蒽氧化后可蒽9
此文档下载收益归作者所有