The manuscript provides the results of the process of obtaining activated phosphorus fertilizer (APF) by nitric acid processing of mineralized mass (MM) of phosphate waste, which formed during the sorting stage of thermal beneficiation of Central Kyzylkum (CK) phosphorites. For e...
Open access
Research Article10.9734/CSJI/2023/v32i6875
In this article, processes of washing phosphogypsum with water, that formed during obtaining extractive phosphoric acid, by clinker method, from ordinary phosphorite powder (OPP) that is a raw material of Central Kyzylkum were studied. The phosphogypsum formed by washing a sample...
Open access
Research Article10.9734/CSJI/2023/v32i2844
Development of a technology for obtaining enriched superphosphate and ammophosphate by processing washed and dried phosphorite concentrate (WDPC) in a single cycle. The optimal ratio P2O5WPPA:H2SO4mh :P2O5WDPC = 1:0.28:0.08 was found, at which the composition and properties of am...
Open access
Research Article10.9734/CSJI/2022/v31i3812
The process of obtaining fertilising precipitate based on the interaction of off-balance ore phosphorites of Central Kyzylkum and chemically enriched phosphorite concentrate with hydrochloric acid, followed by precipitation of hydrochloric acid extraction with suspension of calci...
Open access
Research Article10.9734/CSJI/2018/45393
In this article obtaining complex nitrogen-phosphate fertilizers based on activation of phosphorite powder with partially ammoniated mix of phosphoric and sulphuric acids have been studied. In order to reduce the foaming of the process, for the first time a partially ammoniated m...
Open access
Research Article10.9734/CSJI/2020/v29i930201
Background: Kyzylkum phosphorite combine wastes in form of off-balanced ore (13-15% Р2О5) and phosphorite sludge (10-12% Р2О5) generated during the benefication of high calcareous Central Kyzylkum phosphorite in recent years. Total volume of produced phosphorite has already reach...
Open access
Research Article10.9734/CSJI/2018/43452
The process of obtaining ammoniated superphosphate and liquid NP-fertilizer by phosphorus-sulphuric acid processing of washed and burned phosphorus concentrate (WBPC) in one cycle were studied. It has been established that at ratios of 100 : 5÷10 : 15 the compositions of ammoniat...
Open access
Research Article10.9734/CSJI/2023/v32i6872
In this article the relationship between the entropies of crystalline calcium compounds and copper, zinc and cobalt compounds were analyzed. Thermal capacity dependence of temperature for acidic phosphates of copper, zinc and cobalt, determining value of enthalpy and entropy of...
Open access
Research Article10.9734/CSJI/2019/v28i130129
Complex, nitrogen-phosphate fertilisers are applied before seeding, with seeding and extra nutrition, while single phosphoric ones are the most effective under autumn ploughing. In that case, enriched superphosphate, more concentrated than single superphosphate, was obtained usin...
Open access
Research Article10.9734/CSJI/2018/44167