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«Qarmet» JSC is one of the largest metallurgical enterprises in Kazakhstan, producing steel and other metals. Study of chemical and mineralogical composition of metallurgical slags from this enterprise can be crucial for its process optimization, environmental compliance improvement and efficient waste management. Study of chemical and mineralogical composition of metallurgical slags from «Qarmet» JSC emphasizes importance of researching metal production waste for its efficient recycling. Further research in this area may facilitate development of new waste recycling technologies and improvement of metallurgical production sustainability. During the study of the chemical composition of metallurgical slags of Qarmet JSC, it was found that they contain a significant amount of metal oxides such as iron, manganese, silicon and others. These elements can be potentially useful for reuse in other manufacturing processes or for the production of building materials. In addition, mineralogical analysis has shown that metallurgical slags contain various mineral phases such as silicates, oxides and other compounds. This indicates the complex structure of the slags and the possibility of using them as additives to cement or other building materials. [ABSTRACT FROM AUTHOR]

The article is devoted to research on the synthesis of hydroxyquinoline derivative based on 8-oxyquinoline and maleic anhydride. Analysis of available literature was carried out, some drugs were found that are produced based on hydroxyquinoline derivatives and have antiprotozoal, antimicrobial and antiseptic effects, used alone or in combination with other active substances. A technique has been developed for the synthesis of a new derivative in the medium of petroleum distillate using sulfuric acid as a catalyst. A water-soluble ester of 8-oxyquinoline and maleic acid was obtained in good yield (95%), the structure of which was established based on UV, IR and NMR spectroscopy. By analogy with other oxyquinoline derivatives and the results of prediction bioactivity in the PASS program, the obtained derivative may be characterized by antifungal (antiseborrheic) action. It was determined its antibacterial properties at a concentration of 20.0-10.0 mg/cm3 as well as a significant antioxidant activity which is a useful biological property to expand the range of its application. [ABSTRACT FROM AUTHOR]