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Chemcial Industry and Engineering 2011, Vol. 28 Issue (2) :11-17    DOI:
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Characterization of Coal Tar Pitch and Paving Pitch by UV,EA and NMR
XIAO Yanhua1,FENG Ruijie1,CAO Sumei2,LIU Xiangyong2,GAO Ting1,PAN Zhiquan1
School of Chemical Engineering & Pharmacy,Wuhan Institute of Technology,Key Laboratory for Green Chemical Process of Ministry of
Education, Hubei Key Laboratory of Novel Reactor & Green Chemical Technology,Wuhan 430073,China; 2.Wuhan Pingmei Wugang
Unite Coking Chemical Corp.Ltd,Wuhan Iron & Steel Group Co.,Wuhan 430081, China

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Abstract In order to enlarge the use of coal tar pitch(CTP) in paving road,CTP and 60th paving pitch(PP) were extracted by nheptane,toluene and ethanol step by step in a Soxhlet apparatus.The three fractions of CTP and PP were detected using UVabsorption(UVA),elemental analyses(EA) and nuclear magnetic resonance(NMR) firstly as a whole unit after quality characterization of physical nature of CTP and PP were finished.The CTP had more saturate aliphatic and residue compounds dissolved in ethanol.On the other hand there were more continental type structures of aromatic ring than that of PP.There was almost no residue in PP after extracted by ethanol.The results explained why CTP was crisp in cold winter and was soften in summer.The following research will focus on how to change the chemical construction of CTP into the relative similar structures with those of PP through adding polymer.
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Articles by authors
XIAO Yanhua
FENG Ruijie
CAO Sumei
LIU Xiangyong
GAO Ting
PAN Zhiquan
Keywordscoal tar pitch   paving pitch   quality characterization   elemental analyses   UVabsorption   nuclear magnetic resonance     
Cite this article:   
XIAO Yanhua, FENG Ruijie, CAO Sumei, LIU Xiangyong, GAO Ting, PAN Zhiquan.Characterization of Coal Tar Pitch and Paving Pitch by UV,EA and NMR[J]  Chemcial Industry and Engineering, 2011,V28(2): 11-17
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