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Influence of Elemental Sulfur on the Production of Materials for Road Surfacing

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Abstract

Coke plant tar is oxidized at 220°C in air current at 1.8 L/min for 4.5 h. In this process, elemental sulfur is added in quantities of 20, 30, and 40 wt %. With increase from 20 to 40 wt %, penetration declines from 55 to 38 mm; and the softening temperature (determined by the ring and rod method) declines from 52 to 45°C. The change in the physicomechanical properties of the mixture when adding 20, 30, and 40 wt % S is studied by X-ray phase analysis. With 30 wt % S, the reaction of sulfur with the aromatic rings forms 2-naphthanol-6-sulfonic acid (OHС10Н6SO3H).

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. Al-Faraby Kazakh National University, Almaty, Republic of Kazakhstan

    N. T. Smagulova, Zh. K. Kairbekov & Zh. K. Aibassova

  2. Research Institute of New Chemical Technology and Materials, Al-Faraby Kazakh National University, Almaty, Republic of Kazakhstan

    N. T. Smagulova & Zh. K. Kairbekov

Authors
  1. N. T. Smagulova
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  2. Zh. K. Kairbekov
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  3. Zh. K. Aibassova
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Correspondence to N. T. Smagulova, Zh. K. Kairbekov or Zh. K. Aibassova.

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Translated by B. Gilbert

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Smagulova, N.T., Kairbekov, Z.K. & Aibassova, Z.K. Influence of Elemental Sulfur on the Production of Materials for Road Surfacing. Coke Chem. 67, 37–40 (2024). https://doi.org/10.3103/S1068364X24600076

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  • DOI: https://doi.org/10.3103/S1068364X24600076

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