02.07.2021 y. BOZOROV AMINJON NURILLOYEVICH was defended on the topic: « DEVELOPMENT OF AN EFFECTIVE METHOD FOR PROCESSING COMPOSITE MOLYBDENUM-CONTAINING CINDER, INDUSTRIAL WASTE AND TECHNOLOGY FOR OBTAINING AMMONIUM SALTS OF MOLYBDENUM AND RHENIUM », in the specialties: 02.00.07 – Chemistry and technology of composite, paint and varnish andrubber materials. 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).