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CHENG yong-guang, HAN gang. Determination of Non-eluting Tars Content of Maleic Anhydride Process Oil by Distillation/GC[J]. Analysis and Testing Technology and Instruments, 2007, (2): 148-151.
Citation: CHENG yong-guang, HAN gang. Determination of Non-eluting Tars Content of Maleic Anhydride Process Oil by Distillation/GC[J]. Analysis and Testing Technology and Instruments, 2007, (2): 148-151.

Determination of Non-eluting Tars Content of Maleic Anhydride Process Oil by Distillation/GC

  • Received Date: 2007-04-02
  • Rev Recd Date: 2007-05-15
  • The dibutyl phthalate was take in the maleic anhydride production process as solvent. After a period of time use,in which can produce the tar high polymer. It can affect the solvent efficiency. In this method, the solvent sample after vacuum distillation was concentrated. Adding the succinonitrile, the phthalic anhydride and the dibutyl phthalate quality percentage were deterred in the gas chromatograph. From the concentrate after removing the phthalic anhydride and the dibutyl phthalate content the surplus was namely the sample in tar.
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      沈阳化工大学材料科学与工程学院 沈阳 110142

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