Simple superphosphate by two-stage acid treatment of phosphate raw materials

Sherkuziev, Doniyor

doi:10.1088/1755-1315/939/1/012057

Cited by 5 publications

(4 citation statements)

References 7 publications

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“…The ratio of assimilated forms to the total form increases from 94.74% to 95.87% and 98.27% and aqueous from 87.07% to 90.03% and 91.85%, respectively. Accordingly, the decomposition coefficient of tricalcium phosphate increases from 85.30% to 89.27% and 96.44% [6][7][8][9][10].…”

Section: Resultsmentioning

confidence: 99%

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P₂O₅ to sulfuric acid

Arislanov,

Shamshidinov,

Usmanov

et al. 2024

E3S Web Conf.

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The article covers the decomposition of tricalcium phosphate with thermal phosphoric acid with a concentration of 20, 30 and 40% P2O5 with the replacement of 10, 20 and 30% P2O5 with sulfuric acid and it has been established that, regardless of the content of ammonium nitrate, magnesium sulfate or their combined presence in phosphoric acid, with an increase in the proportion of sulfuric acid, the content of both total and aqueous forms of SO3 in the acidic pulp increases. The highest results of the decomposition coefficient were obtained when phosphoric acid was evaporated to a content of 32.22-25.77% P2O5 and 5.54-9.76% SO3. The SO3 content of both total and aqueous forms in dried products increases with increasing proportion of sulfuric acid. When the proportion of sulfuric acid increases to 20%, the degree of decomposition increases to 93.45% and to 99.55% when replacing 30% P2O5 with sulfuric acid.

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Section: Resultsmentioning

confidence: 99%

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P₂O₅ to sulfuric acid

Arislanov,

Shamshidinov,

Usmanov

et al. 2024

E3S Web Conf.

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“…One of the main directions of development of the Algerian economy is the growth in the production of fertilizers containing phosphorus because the latter represents nearly 90 % of global demand and the food security of Algeria depends to a large extent on it [1]. To achieve this objective, it is necessary to produce concentrates adapted to the requirements of the chemical industry.…”

Section: Introductionmentioning

confidence: 99%

Analysis of combined processing method of phosphate minerals from the Kef Essenoun deposit

Attafi,

Idres,

Mekti

et al. 2024

TAPR

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Currently, the processing of beige and black phosphates only concerns the main sub-layers, while the other sub-layers (lower and upper for beige phosphate and the upper for black phosphate) are considered waste rock and stored near the complex. Therefore, the object of this research is the use of mixtures of three beige phosphate sub-layers and two black phosphate sub-layers as a feed fraction for the calcination and reverses flotation processes. This research work aims to characterise and treat two types of phosphate: one beige with the sub-layers (main, lower and upper) and the other black with the sub-layers (main and upper) in order to have better recovery of P2O5. The working methodology consists of a series of sample preparation operations and characterization of the two types of beige and black phosphate. This characterization includes a petrographic study, a granulochemical analysis, an X-ray diffraction (XRD), a scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS), and an atomic adsorption spectrophotometry (SAA), an auto analyzer (AA), a Bernard calcimeter. These analyzes allow on the one hand to identify the mineral phases in quantitative and qualitative manner, and on the other hand to choose the process for treating phosphates from the Kef Essenoun–Tebessa deposit. The combined method of treatment by calcination followed by reverse flotation gave satisfactory results. The P2O5 content reaches 33.88 % for beige phosphate and 33.13 % for black phosphate. The stored waste rock represents a problem for the company; this waste rock contains fairly high levels of phosphate. The treatment of the mixture of the main sub-layers with these waste rocks makes it possible to obtain a better recovery of P2O5, a better economic profitability of the Djebel Onk mining complex and an environmental impact in the region.

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“…In this connection, at the Namangan Engineering Laboratory. In order to increase the efficiency of the mechanism for introducing water-saving technologies in agriculture and to provide water stable irrigated areas, studies are being carried out to obtain a new type of hydrogel, having the ability to retain moisture and containing mineral fertilizers [16][17][18][19][20]. This article presents the results of research on the acquisition and study of physic-chemical properties of the hydrogel composition with mineral fertilizers.…”

Section: Introductionmentioning

confidence: 99%

Obtaining of complex hydrogel fertilizers with moisture-retaining NPK based on local raw materials

Abduhakimov

Sherkuziev

Aripov

2023

IOP Conf. Ser.: Earth Environ. Sci.

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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.

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Simple superphosphate by two-stage acid treatment of phosphate raw materials

Cited by 5 publications

References 7 publications

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P₂O₅ to sulfuric acid

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P₂O₅ to sulfuric acid

Analysis of combined processing method of phosphate minerals from the Kef Essenoun deposit

Obtaining of complex hydrogel fertilizers with moisture-retaining NPK based on local raw materials

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Simple superphosphate by two-stage acid treatment of phosphate raw materials

Cited by 5 publications

References 7 publications

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P2O5 to sulfuric acid

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P2O5 to sulfuric acid

Analysis of combined processing method of phosphate minerals from the Kef Essenoun deposit

Obtaining of complex hydrogel fertilizers with moisture-retaining NPK based on local raw materials

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The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P₂O₅ to sulfuric acid

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P₂O₅ to sulfuric acid