The purpose of this research was to determine the optimal technological parameters for the purification of extraction phosphoric acid based on phosphorites of Central Kyzylkum from fluorine by precipitation with sodium salts. The influence of the norm of sodium silicate and the total norm of sodium carbonate and sodium metasilicate salts on the chemical composition and degree of precipitation of sodium silicofluoride was research. It is shown that the optimal norm of sodium metasilicate is the stoichiometric norm for binding fluorine present in the extraction phosphoric acid to silicofluoride and the total norm of sodium salts is 120-140%, the temperature is 70°C. Separation of the liquid and solid phases by settling is preferably carried out at a temperature of 30°C and a process duration of 120 minutes.
| Mualliflar | KHODJAMKULOV Sakhomiddin, Mirzakulov Kholtura, Melikulova Gavkhar, USMANOV Ilkham |
|---|---|
| Jurnal | Kimyo va kimyo texnologiyasi |
| Nashr sanasi | 2020-06-30 |
| Jild | 18 |
| Son | 2 |
| Til | en |
| DOI | 10.70189/1992-9498.1267 |
DOI: 10.70189/1992-9498.1267 · Maqolaning asl sahifasi
The aim of the work is dedicated isolation of anthocyanins by ethanol from herbal plant of Occimum basilicum L. Lamiaceae basis. The were studied influencing of temperature, concentration of ethanol to isolation of…
The purpose of the work is to study the technological features of the deodorization of local soybean oil. Deodorization of soybean oil was carried out in laboratory and pilot plants, to analyze the composition of the…
The purpose of the study is to change the properties of water in order to achieve the optimum impact on wheat grain in preparation for variety milling. The results of influence on the properties of drinking water by…
The advantages of synthesis of complex oxide compounds by solar energy, the possibility of obtaining highly textured nano materials are shown. The development of heliomaterial science, aimed at the synthesis of new…
Purpose of scientific research - the need for the synthesis and study of physico-chemical properties of polymethylennaphthalene sulfocyanate on the basis of naphthalene fraction obtained on the basis of fractional…
The results of studies of the effect of fillers from branch kaolins of various grades on the performance properties of composite polymer materials are presented. Optimum amounts of fillers in the composite polymer…
The aim of the work is to study the chemical composition of essential oil samples of four endemic species of wormwood growing in the Central Kopetdag, to determine the main components. Using the method of steam…
The purpose of the study is to obtain superconducting phases with Ts ≥ 260 K. The advanced “Solar Fast Alloys Quenching-T” technology obtained nanoscale precursors and ceramics of nominal composition Bi1.7Pb0.3 Sr2…
In this study, we aimed to isolate genomic DNA (gDNA) from a yeast cell using various methods and choose the cheapest, most convenient, and fastest method among them. For this purpose, based on a thorough review of the…
The aim of the study was the regeneration of used oils. The change in the conditions for the regeneration of used engine oil as a result of adsorptive cleaning with alkaline earth clay from the Navbakhor deposit has…