重烷苯中二烷基苯和茚满萘满的分离与鉴定  

Separation and identification of dialkyl-benzene as well as dialkyl-tetralin and indane in heavy alkylate by-produced with LAB

作　　者：王萍[1] 王佩维[1] 关景才[1] 王友国[1] 

机构地区：[1]中国日用化学工业研究院,山西太原030001

出　　处：《日用化学工业》2005年第2期119-122,共4页China Surfactant Detergent & Cosmetics

基　　金：国家科技攻关973计划资助项目(G1999022500)

摘　　要：通过柱层析的方法将重烷基苯大致分成了6个族组分,重点对第Ⅱ族组分、Ⅲ族组分进行了分析和鉴定。通过红外光谱的鉴定,大致确定第Ⅱ族组分主要为二烷基苯,第Ⅲ族组分主要为单烷基苯和少量的二烷基茚满、萘满(DTI)。然后用紫外法求得了第Ⅱ族组分中邻、间二烷基苯之和与对二烷基苯的质量比约为1∶4 09。第Ⅲ族组分中DTI的质量分数约为7 23%,DTI在重烷基苯中所占的质量分数约1 22%。The heavy alkylate by-produced with LAB was roughly separated into 6 groups(Group I-VI) by column chromatography. The analysis and identification were focused on Group II and III. Through IR analysis, the main component in group II was identified as dialkyl-benzene, while in Group III was monoalkyl-benzene as well as dialkyl-tetralin and indane (DTI). Through UV analysis, the mass ratio of the sum of ortho-dialkyl-benzene and meta-dialkyl-benzene to para-dialkyl-benzene in Group II is determined as about 1∶4.09, while the content of DTI in Group III is about (7.23)(w/%). The DTI content in the whole heavy alkylate is about 1.22(w/%).

关 键 词：重烷基苯 柱色谱 分离 紫外光谱 

分 类 号：TQ649.4[化学工程—精细化工]