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Information × Registration Number 0225U002808, (0122U201803) , R & D reports Title Theoretical fundamentals and technological principles of heavy chemicals productions, soda ash, mineral fertilizers, catalysts and industrial ecology popup.stage_title Теоретичні основи і технологічні засади у виробництвах основного неорганічного синтезу, кальцинованої соди, мінеральних добрив, каталізаторів та промислової екології Head Kazakov Valentyn V., Доктор технічних наук Registration Date 07-04-2025 Organization National Technical University "Kharkiv Polytechnic Institute" popup.description1 The purpose of the work is the development of theoretical fundamentals for regeneration stage of catalysts for sulfuric, hydrocyanic, nitric acids production; NPK mineral fertilizers production, using low concentrated raw materials of Ukraine that contain phosphorus, in order to create competitive, energy-saving, environmentally friendly technologies popup.description2  The work is devoted to the study of depleted phosphorites of the Sinichyno-Yaremiv deposit of the Izyum district of the Kharkiv region. The possibility of enrichment of this ore by three methods: mechanical, thermal and chemical, carried out in laboratory conditions, was considered. The qualitative and quantitative composition of phosphorite was determined using X-ray fluorescence analysis and the method of electron microscopy with an attachment for energy dispersive analysis. Both natural raw materials and enriched ones were studied. Based on the data obtained, the possibility of enrichment of this ore with a further increase in the P2O5 content was revealed, despite the abnormally large amount of iron. The work was also devoted to the development of a technical solution to solve the environmental problem, namely: the study of the physicochemical properties of a new type of catalyst with a new type of carrier for the neutralization of NOx in the gas after the absorption column of the production of weak nitric acid. A new composition of the active components of the catalyst and a new carrier are proposed, which increases the thermal stability of the experimental catalyst, which positively affects the duration of the service life of this contact. The results obtained and the developed recommendations will contribute to the sustainable development of industry and the economy of Ukraine. Product Description popup.authors Avina Svitlana I. Vetsner Yulana I. Sincheskul Oleksandr L. popup.nrat_date 2025-04-07 Close