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Electro-oxidation rate ofp-tert-butyltoluene in a bipolar packed-bed electrode cell

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Abstract

The side chain methoxylation ofp-tert-butyltoluene was carried out in a bipolar packed-bed electrode cell in which graphite pellets of diameter 4.74 mm and length 5mm were randomly packed in nine layers separated by inert mesh spacers. The reaction consisted of main consecutive reactions leading top-tert-butylbenzyl methyl ether andp-tert-butylbenzaldehyde dimethyl acetal (TBDA) and polymerization reactions. Overall reaction rate coefficients for each reaction step, current efficiency and energy consumption were determined on the basis of a reactor model. The selectivity and the current efficiency for TBDA increased with increasing current, but the energy consumption began to rise when the current exceeded 0.8 A. An addition of supporting electrolyte suppressed the overall reaction rate coefficients, although it decreased the energy consumption.

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Abbreviations

C e :

overall current efficiency

C 1 :

concentration of i-component as a function of time. (i represents BT for TBT, ME for TBME and DA for TBDA) (mol m−3)

E :

cell voltage (V)

E c :

energy consumption (J kg−1)

e :

potential difference between upper and lower ends of each pellet (V)

e d :

decomposition voltage (V)

F :

Faraday constant (C mol−1)

I o :

bypass current (A)

I b :

faradaic current (A)

I l :

total current (A)

K 1,k 2,k 3 :

overall reaction rate coefficient, defined by Equation 13 (ms−1)

M i :

molecular weight of i-component (i represents ME for TBME and DA for TBDA) (kg mol−1)

n :

number of pellet layers

R b :

equivalent resistance for bypass current (Ω)

R p :

equvalent resistance for faradaic current (Ω)

R s :

equivalent resistance for total current (i.e. spacer resistance) (Ω)

S :

total surface area of anodic part of bipolarized pellets in cell (m2)

t :

time (s)

W :

volume of electrolyte (m3)

z :

number of electrons transferred in electrochemical reaction

η :

intrinsic current efficiency

o:

refers to initial values

References

  1. P. Tissot, H. Do Duc and O. John,J. Appl. Electrochem. 11 (1981) 473.

    Google Scholar 

  2. A. Nilsson, U. Palmquist, T. Pettersson and A. Ronlan,J. Chem. Soc. Perkin Trans. I (1978) 708.

  3. I. Nishiguchi and T. Hirasima,J. Org. Chem. 50 (1985) 539.

    Google Scholar 

  4. K. Okumura, H. Mizumoto and H. Sasaki,Jpn. Kokai Tokyo Koho (1981) 81.

  5. S. Torii and T. Siroi,J. Synth. Org. Chem. Jpn. 37 (1979) 914.

    Google Scholar 

  6. F. Barba, A. Guirado and I. Barba,Electrochim. Acta 29 (1984) 1639.

    Google Scholar 

  7. N. L. Weinberg and H. R. Weinberg,Chem. Rev. 68 (1968) 449.

    Google Scholar 

  8. F. Goodridge, C. J. H. King and A. R. Wright,Electrochim. Acta. 22 (1977) 347.

    Google Scholar 

  9. K. Kusakabe, T. Kimura, S. Morooka and Y. Kato,J. Chem. Eng. Jpn. 17 (1984) 239.

    Google Scholar 

  10. K. Kusakabe, S. Morooka and Y. Kato,15 (1982) 45.

    Google Scholar 

  11. —Idem. 19 (1986) 43.

    Google Scholar 

  12. S. Ehdaie, M. Fleischmann and R. E. W. Jansson,J. Appl. Electrochem. 12 (1982) 59.

    Google Scholar 

  13. O. R. Brown, S. Chandra and J. A. Harrison,J. Electroanal. Chem. 34 (1972) 505.

    Google Scholar 

  14. H. Sternerup,Acta Chim. Scand. 27 (1974) 579.

    Google Scholar 

  15. S. Vemura, T. Ikeda, S. Tanaka and M. Okano,J. Chem. Soc. Perkin Trans.I, (1979) 2574.

  16. G. Sundholm,J. Electroanal. Chem. 31 (1971) 265.

    Google Scholar 

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Author notes

  1. Hark Joon Kim

    Present address: Kyungnam University under the Korean Science and Engineering Foundation Overseas Fellowship scheme, Korea

Authors and Affiliations

  1. Department of Applied Chemistry, Kyushu University, Higashi-ku, Fukuoka 812, Japan

    Hark Joon Kim, Katsuki Kusakabe, Satoko Hokazono, Shigeharu Morooka & Yasuo Kato

Authors
  1. Hark Joon Kim
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  2. Katsuki Kusakabe
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  3. Satoko Hokazono
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  4. Shigeharu Morooka
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  5. Yasuo Kato
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Kim, H.J., Kusakabe, K., Hokazono, S. et al. Electro-oxidation rate ofp-tert-butyltoluene in a bipolar packed-bed electrode cell. J Appl Electrochem 17, 1213–1222 (1987). https://doi.org/10.1007/BF01023605

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  • DOI: https://doi.org/10.1007/BF01023605

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