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

Volodymyr Gunka1, Halyna Bilushchak1, Yuriy Prysiazhnyi1, Yuriy Demchuk 1, Yurii Hrynchuk1, Iurii Sidun1, Olena Shyshchak1, Michael Bratychak1
Affiliation: 
1 Lviv Polytechnic National University 12 S.Bandery St., Lviv 79013, Ukraine mbratychak@gmail.com
DOI: 
https://doi.org/10.23939/chcht16.01.142
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Abstract: 
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.
References: 

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