17.11.2022 y. at 11:00 o'clock Kiyamova Dilfuza Sharifovna was defended on the topic: «Development of the optimal composition and technology of briquetting coal fines using composite materials from local raw materials and industrial waste», in the specialty: 02.00.07- "Chemistry and technology of composite, varnish paint and rubber materials" for the degree of Doctor of Philosophy in technical sciences (РhD).