17.08.2021 y. Khasanov Ulugbek Abdurashidovich was defended on the topic: «Development of basic parameters for reducing the content of copper with slags in copper furnaces», in the specialty: 05.02.01–Materials science in mechanical engineering.Foundry production. Heat treatment and handling of metals pressure. Metallurgyof ferrous, non-ferrous and rare metals. Technology of non-ferrous, precious and radiactiv metals (materials science and metallurgy sciences) for the degree of Doctor of Philosophy in technical sciences (РhD).