Catalytic dehydrocyclopolymerization of C4 and C8 olefins over ZnCl2 and ZnCl2 + ZnS

  • L. I. Antsus
  • A. D. Petrov
  • O. I. Shcheulina
Organic and Biological Chemistry
  • 17 Downloads

Summary

  1. 1.

    In the dehydrocyclopolymerization of C4 and C8 olefins over ZnCl2 at 350–450°, carried out in admixture with an equal amount of butane, the yield of polymerizate attained 70–80% and its content of aromatic hydrocarbons was 10–15% in the fraction boiling up to 150° and 80% in the fraction boiling from 150 to 250°.

     
  2. 2.

    The aromatic hydrocarbons in the fraction boiling up to 150° consisted only of mixtures of xylenes. In the aromatic hydrocarbons of the 150–250° fraction the following were identified: 1) 1,2,4,5-tetramethylbenzene; 2) t-butylbenzene; 3) 5-t-butyl-m-xylene.

     
  3. 3.

    The bulk of the aromatic hydrocarbons consisted of C10 and C12 hydrocarbons: (C4-alkyls) benzenes and (C4-alkyl) xylenes in which the C4-alkyls differ in structure and the groups are in different positions in the benzene ring. They could not be separated by fractionation or freezing out.

     

Keywords

Benzene Hydrocarbon Fractionation Xylene Aromatic Hydrocarbon 

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Literature cited

  1. 1.
    V. N. Ipatieff, J. Amer. Chem. Soc.,58, 877, 915 (1936); V. N. Ipatieff, J. Organ. Chem.,1, 465 (1936); L. I. Antsus and A. D. Petrov, Dokl. AN SSSR.,70, No. 3, 425 (1936); L. I. Antsus and A. D. Petrov, Izv. AN SSSR. Otd. khim. n.,1950, 599; L. L Antsus and A. D. Petrov, Izv. AN SSSR. Otd. khim. n.,1956, 1135.Google Scholar
  2. 2.
    E. Terres, R. Ebert, K. Loebman, G. Rauth, and C. Wull, Erdöl und Kohle,1959, 467.Google Scholar
  3. 3.
    L. I. Antsus and A. D. Petrov, Izv. AN SSSR. Otd. khim. n.,1959, 2199; L. I. Antsus and A. D. Petrov, Neftekhimiya,2, 28 (1962).Google Scholar
  4. 4.
    V. Anhorne, K. Fresch, K. Brown, and D. Schaffel, Chem. Engng Progr.,57, No. 5, 43 (1961).Google Scholar
  5. 5.
    L. Smith and H. Perry, J. Amer. Chem. Soc.,61, 1411 (1939).Google Scholar
  6. 6.
    I. Schramm, Liebigs Ann. Chem.,218, 383 (1883).Google Scholar
  7. 7.
    I. Timmermans, Bull. Soc. chim. belges,30, 62 (1921).Google Scholar

Copyright information

© Consultants Bureau Enterprises, Inc. 1965

Authors and Affiliations

  • L. I. Antsus
    • 1
  • A. D. Petrov
    • 1
  • O. I. Shcheulina
    • 1
  1. 1.N. D. Zelinskii Institute of Organic ChemistryAcademy of SciencesUSSR

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