Obtaining water-saving complex fertilizers based on local raw materials Talat Abduhakimov, Doniyor Sherkuziev E3s Web of Conferences, 2024 The article presents the results of research on the production of moisture-retaining complex fertilizers that save water resources and mineral components based on local raw materials. The synthesis process of FarPAN raw material with formalin, inorganic and organic acids and monoammonium phosphate (MAF) as a fertilizer has been studied. As a result of the study, FarPAN and the hydrogel sample obtained after neutralization with sulfuric acid were analyzed in the IR spectrum. According to the results of the analysis, a new type of 20% MAF-based moisture-retaining fertilizer was chosen as the most optimal option, and physico-chemical analyzes of the sample (elemental analysis (SEM_EDX)) were studied. It was determined that the resulting moisture-retaining fertilizers can be used in agriculture as a means of providing moisture and nutrient components in water-scarce areas.
Synthesis and analysis of a new high intensity phthalocyanine pigment containing nitrogen, sulfur and copper Mukhlisa Robiddinova, Muzafar Yusupov, Doniyor Sherkuziev E3s Web of Conferences, 2024 The article presents the results of research on obtaining highly intensive pigments based on organic and inorganic substances. The process of synthesis of copper chloride (CuCl) raw material with phthalic anhydride, inorganic and organic substances was studied. As a result of the study, copper chloride (CuCl) and a sample of the pigment obtained as a result of neutralization with sulfuric acid were analyzed using an X-ray spectrum. According to the results of the analysis, a new type of pigment based on copper phthalocyanine (CuPc) was selected as the most optimal option, and physico-chemical analysis of the sample (elemental analysis (SEM_EDX)) was studied. It has been determined that the highly intensive pigment obtained as a result can be used as an import substitute product in the construction and textile industry.
Technology of obtaining liquid complex fertilizers in the presence of monoethanolamine based on phosphorites of the Central Kyzylkum Doniyor Sherkuziev, Solijon Zokirov E3s Web of Conferences, 2023 The possibility of producing liquid fertilizers based on nitric acid processing of washed dried concentrate in the presence of monoethanolamine is shown. On the basis of nitric acid extract and monoethanolamine, liquid complex fertilizers with stimulating activity were obtained, composition: P2O5tot. - 10-11%, CaOtot. - 6-7%, Ntot. 12-13% and K2O-5-6%. They contribute to the acceleration of plant growth by 10- 12 days and an increase in yield by an average of 8-10% compared to the control variant. It can be concluded that they can be recommended as liquid complex fertilizers for drip application.
Obtaining of complex hydrogel fertilizers with moisture-retaining NPK based on local raw materials T Abduhakimov, D Sherkuziev, X Aripov Iop Conference Series Earth and Environmental Science, 2023 This article presents the results of research on the production of fertilizers using water-saving hydrogel on the basis of local raw materials. The reaction of ParPAN raw materials with inorganic and organic acids and in the presence of formalin has been studied. According to the results of research, a new type of hydrogel was synthesized. The degree of swelling of the hydrogel has been found to be related to the amount of formalin and other additives. The composition of the hydrogel composition with mineral fertilizer was developed, its basic physico-chemical characteristics and swelling kinetics were studied. The use of hydrogels as a means of keeping moisture and feed components in arid and low-water agricultural regions of the Republic of Uzbekistan is recommended.
Mineralogical Composition of Kyzylkum Washed Dry Concentrate and Its Processing into Simple Superphosphate Kh. A. Otaboev, D. Sh. Sherkuziev, O. A. Badalova, R. Radjabov, Sh. S. Namazov, A. R. Seytnazarov Russian Journal of General Chemistry, 2022 The various types of phosphate minerals of the apatite group have been analyzed. The phosphate substance of phosphorites except fluorapatite, can be represented by fluorocarbon apatite—francolite or kurskite. The highest phosphorus content is found in fluorapatite, and the lowest in kurskite. In terms of the unit cell parameters (а0 = 9.33 Å), the phosphate mineral of granular phosphorites of the Kyzylkum desert is francolite. The mineralogical composition of the washed dried concentrate, a granular type of phosphorites of the Central Kyzyl Kum, was studied by X-ray and chemical methods of research. It has been established that the main phosphate mineral of granular phosphorites of the Kyzyl Kum is francolite. Calcite, dolomite, gypsum, quartz, calcium silicate, etc. are present as gangue. The rate of sulfuric acid for the decomposition of washed dried concentrate (25.75% P2O5) in terms of obtaining simple superphosphate (at least 17% P2O5) has been calculated. A distinctive feature of the proposed in-line method over the classical one (chamber) is that the entire production cycle of natural phosphate processing is carried out in two stages. At the first stage, the phosphate raw material is treated with a stoichiometric consumption of concentrated sulfuric acid (at least 93%), under conditions of complete decomposition of the washed dried concentrate with the formation of phosphoric acid and anhydrite crystals (calcium sulfate). The reaction temperature is 130°C. At the second stage, the resulting concentrated solution of phosphoric acid in a mixture with sulfuric acid participates in the reaction with an additional introduced amount of washed dried concentrate, which is the basis of the mechanism of chemical formation of monocalcium phosphate and granulation of superphosphate mass. On comparison to the conventional flowsheet, the process excludes the stages of warehouse maturation, ammonization and drying of the product.
Simple superphosphate by two-stage acid treatment of phosphate raw materials D Sherkuziev Iop Conference Series Earth and Environmental Science, 2021 The distinguishing feature of the proposed flow method before the classical (chamber) method is that the entire production cycle of natural phosphate processing is carried out in two stages. At the first stage, the phosphorite is treated with a stoichiometric flow rate of concentrated sulphuric acid (at least 93%), under conditions of complete decomposition of phosphorite to form phosphoric acid and crystals of anhydrite (calcium sulfate). The reaction temperature is 122 °C. In the second stage, the resulting concentrated solution of phosphoric acid in a mixture with sulphur is involved in a reaction with an additional input of phosphorite, which is the basis for the mechanism of chemical formation of monocalciumphosphate and granulation of superphosphate mass. The processes for neutralizing phosphoric acid on monocalciumphosphate and for granulating the product by coagulation are combined in one apparatus. The drying stage of the product is excluded from the scheme.
ПЕРСПЕКТИВНЫЕ ПОЛИМЕРНЫЕ КОМПОЗИЦИОННЫЕ МАТЕРИАЛЫ. АЛЬТЕРНАТИВНЫЕ ТЕХНОЛОГИИ. ПЕРЕРАБОТКА. ПРИМЕНЕНИЕ. ЭКОЛОГИЯ ИВ ЧЕРЕМУХИНА, АВ БАГРОВ, ЕН ЛАЗАРЕВА, ВА ЧЕРЕМУХИН, ... Москва 2, 77-81 , 2026 2026
Study of the decomposition process of local phosphorites using industrial waste sulfuric acid A Shermatov, D Sherkuziev Scientific and Technical Journal of Namangan Institute of Engineering and … , 2025 2025
Determining the components of local industrial waste and recycling them into liquid complex fertilizers A Shermatov, D Sherkuziev AIP Conference Proceedings 3268 (1), 020049 , 2025 2025
Физико-химические свойства выпаренной эфк (40÷ 56%) из фосфоритов центрального Кызылкума ИЖ Полотов, НС Бахриддинов, ДШ Шеркузиев, ШС Намазов, ... ИЗВЕСТИЯ НАЦИОНАЛЬНОЙ АКАДЕМИИ НАУК КЫРГЫЗСКОЙ РЕСПУБЛИКИ, 171-177 , 2025 2025
ЭФФЕКТИВНОСТЬ ИСПОЛЬЗОВАНИЯ В ПРОЦЕССЕ ПОЛУЧЕНИЯ ОБОГАЩЕННОГО СУПЕРФОСФАТА ИЗ ПРОМЫШЛЕННОЙ ВТОРИЧНОЙ СЕРНОЙ КИСЛОТЫ АХУ Шерматов, ДШ Шеркузиев Universum: технические науки 8 (12 (141)), 40-47 , 2025 2025
Obtaining water-saving complex fertilizers based on local raw materials T Abduhakimov, D Sherkuziev E3S Web of Conferences 486, 05008 , 2024 2024 Citations: 1
Phosphorus fertilizer technology activated from phosphorus powder and mineralized mass E Nozimov, B Sultanov, D Kholmatov, D Sherkuziev, A Nodirov Scientific and Technical Journal of Namangan Institute of Engineering and … , 2024 2024 Citations: 7
Synthesis and analysis of a new high intensity phthalocyanine pigment containing nitrogen, sulfur and copper M Robiddinova, M Yusupov, D Sherkuziev E3S Web of Conferences 486, 05017 , 2024 2024
Obtaining of complex hydrogel fertilizers with moisture-retaining NPK based on local raw materials T Abduhakimov, D Sherkuziev, X Aripov IOP Conference Series: Earth and Environmental Science 1142 (1), 012055 , 2023 2023 Citations: 1
ОРГАНОМИНЕРАЛЬНЫЕ УДОБРЕНИЯ, ПОЛУЧЕННЫЕ НА ОСНОВЕ ГУЛИОБСКОГО ФОСФОРИТА И ОТХОДА ХЛОПКООЧИСТИТЕЛЬНОГО ЗАВОДА БШ Примкулов, АА Маматалиев, УШ Темиров, ШС Намазов Universum: технические науки, 48-55 , 2023 2023
SYNTHESIS AND COMPARATIVE ANALYSIS OF NITROGEN, SULFUR, CALCIUM AND COPPER-CONTAINING PHTHALOCYANE PIGMENTS M Robiddinova, M Yusupov, D Sherkuziyev Universum: химия и биология, 57-60 , 2023 2023 Citations: 1
RESEARCH OF THE PROCESS OF TWO-STAGE DECOMPOSITION OF DIFFERENT TYPES OF KYZYLKUM PHOSPHORITES WITH SULFURIC ACID IN ANHYDRITE MODE D Sherkuziev Universum: технические науки, 4-7 , 2023 2023
Technology of obtaining liquid complex fertilizers in the presence of monoethanolamine based on phosphorites of the Central Kyzylkum D Sherkuziev, S Zokirov E3S Web of Conferences 390, 05030 , 2023 2023 Citations: 7
CHEMICAL MODIFICATION OF PHTHALOCYANINES AND THEIR APPLICATION IN THE SYNTHESIS OF PHTHALOCYANINE PIGMENTS M Robiddinova, M Yusupov, D Sherkuziev European Chemical Bulletin 11 (11), 141-141 , 2022 2022
OBTAINING A NEW TYPE OF HYDROGEL BY POLYMERIZING FARPAN WITH FORMALIN AND VARIOUS ADDITIVES П ФАРПАНА, СФИР ДОБАВКАМИ CHEMICAL ENGINEERING 97 (4) , 2022 2022
Mineralogical Composition of Kyzylkum Washed Dry Concentrate and Its Processing into Simple Superphosphate KA Otaboev, DS Sherkuziev, OA Badalova, R Radjabov, SS Namazov, ... Russian Journal of General Chemistry 92 (3), 505-517 , 2022 2022 Citations: 7
CHEMICAL MODIFICATION OF PHTHALOCYANINES AND THEIR APPLICATION IN THE SYNTHESIS OF PHTHALOCYANINE PIGMENTS D Sherquziyev Scienceweb academic papers collection , 2022 2022
МАКРОГЕТЕРОЧИКЛИК МЕТАЛЛ ФТАЛОЧИАНИН ПИГМЕНТИ СИНТЕЗИДА БОШЛАНҒИШ МОДДАЛАРНИНГ НИСБАТИНИ ЦИСОБЛАШ D Sherquziyev Scienceweb academic papers collection , 2022 2022
KOBALT FTALOSIYANIN PIGMENTINING LOK-BO ‘YOQ MATYERIALLAR KOMPOZISIYASIDAGI INTENSIVLIK DARAJASI D Sherquziyev Scienceweb academic papers collection , 2022 2022
ПОЛУЧЕНИЕ ГИДРОГЕЛЯ НОВОГО ТИПА ПОЛИМЕРИЗАЦИЕЙ ФАРПАНА С ФОРМАЛИНОМ И РАЗЛИЧНЫМИ ДОБАВКАМИ D Sherquziyev Scienceweb academic papers collection , 2022 2022
MOST CITED SCHOLAR PUBLICATIONS
Simple superphosphate by two-stage acid treatment of phosphate raw materials D Sherkuziev IOP Conference Series: Earth and Environmental Science 939 (1), 012057 , 2021 2021 Citations: 12
HYDROGEL PRODUCTION OF NEW GENERATION BASED ON LOCAL RAW MATERIALS AO Sherquzyev D.Sh., Shirinov Sh.D., Yusupov M.O. European Sciences review 1 (№ 11–12), 141-145. , 2018 2018 Citations: 9
Flow of simple superphosphate using two-stage decomposition of phosphorite K Otaboev, D Sherkuziev, S Namazov, R Radjabov, A Seytnazarov IOP Conference Series: Earth and Environmental Science 939 (1), 012055 , 2021 2021 Citations: 8
Жидкие и твёрдые комплексные удобрения на основе разложения Кызылкумских фосфоритов при неполной норме азотной кислоты ДШ Шеркузиев автореф. дис.… канд. техн. наук , 2011 2011 Citations: 8
Получение жидких комплексных удобрений на основе нитратноаммонийнокальциевых растворов и карбамидоаммиачной селитры ДШ Шеркузиев Узбекский химический журнал 3, 84-87 , 2010 2010 Citations: 8
Рациональная технология получения азотфосфоркальцийсодержащих удобрений из Кызылкумских фосфоритов ДШ Шеркузиев, АМ Реймов, ШС Намазов Вестник Ташкентского государственного технического университета, 179 , 2009 2009 Citations: 8
Phosphorus fertilizer technology activated from phosphorus powder and mineralized mass E Nozimov, B Sultanov, D Kholmatov, D Sherkuziev, A Nodirov Scientific and Technical Journal of Namangan Institute of Engineering and … , 2024 2024 Citations: 7
Technology of obtaining liquid complex fertilizers in the presence of monoethanolamine based on phosphorites of the Central Kyzylkum D Sherkuziev, S Zokirov E3S Web of Conferences 390, 05030 , 2023 2023 Citations: 7
Mineralogical Composition of Kyzylkum Washed Dry Concentrate and Its Processing into Simple Superphosphate KA Otaboev, DS Sherkuziev, OA Badalova, R Radjabov, SS Namazov, ... Russian Journal of General Chemistry 92 (3), 505-517 , 2022 2022 Citations: 7
Физико-химические свойства жидких азотнокальциевых удобрений на основе нитратноаммонийкальциевого раствора и карбамидно-аммиачной селитры ШД Шермаматович, УЗ Тохиржоновна, НШ Саттарович UNIVERSUM: Технические науки 73 (№4), 32-38 , 2020 2020 Citations: 7
О составе жидкой и твердой фаз продуктов разложения фосфоритов Центральных Кызылкумов при пониженной норме азотной кислоты ДШ Шеркузиев Узб. хим. ж.–2008 3, 63-67 , 2008 2008 Citations: 7
Усовершенствованная технология получения азотно-фосфорно-кальциевых удобрений из рядовой фосмуки Центральных Кызылкумов ДШ Шеркузиев, АМ Реймов, ШС Намазов Материалы Республиканской научно-практической конференции молодых ученых … , 2008 2008 Citations: 7
Жидкие азотнокальциевые удобрения на основе азотнокислот-ной вытяжки фосфатов и карбамида. БМБДШШ А.М.Реймов., Ш.С.Намазов., Р.Р.Раджабов. Хим. пром-сть. – Санкт-Петербург, 228-234 , 2010 2010 Citations: 6
Разработка технологии получения новых гидрогелей для сельского хозяйства ММ Шеркузиев Д.Ш., Арипов Х.Ш., Мамадрахимов А. ИНЖЕНЕРНЫЕ РЕШЕНИЯ научный журнал., 25-29 , 2019 2019 Citations: 5
Получение азотно-фосфорно-кальциевых удобрений из Кызылкумских фосфоритов ДШ Шеркузиев, АМ Реймов, ШС Намазов Химия и химическая технология, 8-11 , 2011 2011 Citations: 5
Твердые и жидкие комплексные удобрения на основе Кызылкумских фосфоритов ДШ Шеркузиев, АМ Реймов, ШС Намазов Материалы международной научно-технической конференции «Современные техника … , 2010 2010 Citations: 5
Application of mineral fertilizers to increasing soil moisture and growth of forest seedlings for creation forest crops in Western Tien-Shan B Mamutov, E Butkov, A Hamzayev, D Sherkuziev, K Aripov, F Ergasheva, ... E3S Web of Conferences 304, 03007 , 2021 2021 Citations: 4
Использование местного сырья для производства клинкера АТШДА Хайруллахан Universum: технические науки: научный журнал 2 (№ 10 (79), 31-33. , 2020 2020 Citations: 4
Управление земельными ресурсами и их оценка: новые подходы и инновационные решения ШШД Шеркузиев Д.Ш., Юсупов М.О., Курбонов М.М. Управление земельными ресурсами и их оценка: новые подходы и инновационные … , 2019 2019 Citations: 4
Получение суперабсорбент полимеров на основе местного сырья Д Шеркузиев, М Юсупов, О Аскарова Материалы ХХХVI Международной научно-практической интернет-конференции … , 2018 2018 Citations: 4
