Author: Ismatov, Baxtiyor Axmad o‘g‘li; Lutfullayev, Sa’dulla Shukurovich

Annotation: This article examines, on the basis of a scientific literature review, the possibilities of using technological secondary materials generated during the production of synthetic liquid hydrocarbons via Fischer–Tropsch technology at Uzbekistan GTL LLC for the manufacture of polymer composite materials. The aim of the study is not to obtain new experimental data, but to systematize existing scientific findings, assess the physicochemical nature of the technological waste, and identify promising directions for its reuse. The analysis showed that it is reasonable to conditionally divide the secondary materials into two groups - a "mineral-natured fraction" and a "hydrocarbon fraction (FT-wax)". The presence of oxides such as SiO₂, Al₂O₃ and CaO in the mineral fraction allows it to be regarded as a potential filler for PP, PE and PVC, although the final outcome depends on particle size, surface energy, and modification with silanes, stearates or titanates. Based on research from India, South Africa, Italy, Turkey, the Republic of Korea, Japan and other countries, it is proposed that, for Uzbekistan GTL, the technological waste should not be processed as a single mass but fractionated according to its physicochemical nature, with a suitable technology selected for each fraction.

Keywords: Uzbekistan GTL, Fischer–Tropsch, technological waste, FT-wax, perlite, mineral filler, polymer composite, PVC, PP, PE, surface modification, silane, calcium stearate, interfacial adhesion, recycling.

Pages in journal: 360 - 375