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Chemistry for Sustainable Development

2004 year, number 4

Thermal Solution of Waste Tire in Heavy Commercial Solvents

I. S. AMOSOVA1, E. I. ANDREYKOV1, N. A. GRINEVICH2 and O. N. CHUPAKHIN1
1Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences,
Ul. S. Kovalevskoy 20, Yekaterinburg GSP-147 (Russia) E-mail: cc@ios.uran.ru
2Ural State Forestry Engineering University, Ul. Sibirskiy Trakt 37, Yekaterinburg 620010 (Russia)
Pages: 421-426

Abstract

Thermal solution of the rubber chips of waste tire in high-boiling commercial solvents in the absence of molecular hydrogen is considered. High conversion of rubber to liquid products takes place at 300 AC and above this temperature. The yield of the gas is less than 1 % at 300 AC. Solution of rubber chips in commercial solvents can give products in the form of suspensions of finely granular carbon black in bitumenlike materials. Thermal solution combined with thermal oxidation with air permits one to vary the softening point and the plastic properties of the products. The thus obtained modified bitumens have a weaker temperature dependence of the plastic properties, which is important for improving resistance to cracks and cold in road coatings.