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  2. All Volumes and Issues
  3. Volume 16, Number 1, 2022
  4. Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues.4. Determining the Optimal Conditions for Tar Modification with Formaldehyde and Properties of the Modified Products

Production of Bitumen Modified with Low-Molecular Organic Compounds from Petroleum Residues.4. Determining the Optimal Conditions for Tar Modification with Formaldehyde and Properties of the Modified Products

JCCT.
2022;
Volume 16, Number 1
: pp. 142–149
https://doi.org/10.23939/chcht16.01.142
Authors:
  1. Volodymyr Gunka
  2. Halyna Bilushchak
  3. Yuriy Prysiazhnyi
  4. Yuriy Demchuk
  5. Yurii Hrynchuk
  6. Iurii Sidun
  7. Olena Shyshchak
  8. Michael Bratychak
1
Lviv Polytechnic National University
2
Lviv Polytechnic National University
3
Lviv Polytechnic National University
4
Lviv Polytechnic National University, Danylo Halytsky Lviv National Medical University
5
Institute of Chemistry and Chemical Technology Lviv Polytechnic National University
6
Lviv Polytechnic National University
7
Lviv Polytechnic National University
8
Lviv Polytechnic National University

The effect of factors on the process of chemical modification of tar with formaldehyde using a sulfuric acid as the catalyst has been studied. By using experimental results, the adequate statistical-mathematical (ESM) model has been developed. Based on this model, the optimal values on the process of chemical modification of tar with formaldehyde using a sulfuric acid as the catalyst have been identified, bringing about optimal penetration value and softening point of the modified tars. Data predicted on the basis of the ESM model were compared with empirical evidence about modified tars preparation.

tar
formaldehyde
optimal conditions
experimental statistical-mathematical (ESM) model
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