The Experts below are selected from a list of 52584 Experts worldwide ranked by ideXlab platform
I. Dombalov - One of the best experts on this subject based on the ideXlab platform.
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Phase changes in the syrian phosphorite–Ammonium Sulphate system
Journal of Thermal Analysis and Calorimetry, 2006Co-Authors: V. Yaneva, I. DombalovAbstract:With a complex of physico-chemical methods for analysis it is proved that in the course of mechanochemical treatment of a Syrian phosphorite and Ammonium Sulphate mixture new phases have been formed. The thermal analysis proves an increase in the reaction properties of the Ammonium Sulphate and the Syrian phosphorite which is a prerequisite for the increase in the content of P2O5assimilated , in the activated phosphorite mixtures and the possibility to use them in the production of NP complex fertilizers.
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PHASE CHANGES IN THE SYRIAN PHOSPHORITE-Ammonium Sulphate SYSTEM Mechanochemical activation
Journal of Thermal Analysis and Calorimetry, 2006Co-Authors: V. Yaneva, I. DombalovAbstract:With a complex of physico-chemical methods for analysis it is proved that in the course of mechanochemical treatment of a Syrian phosphorite and Ammonium Sulphate mixture new phases have been formed. The thermal analysis proves an increase in the reaction properties of the Ammonium Sulphate and the Syrian phosphorite which is a prerequisite for the increase in the content of P 2 O assimilated 5 , in the activated phosphorite mixtures and the possibility to use them in the production of NP complex fertilizers.
V. Yaneva - One of the best experts on this subject based on the ideXlab platform.
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Phase changes in the syrian phosphorite–Ammonium Sulphate system
Journal of Thermal Analysis and Calorimetry, 2006Co-Authors: V. Yaneva, I. DombalovAbstract:With a complex of physico-chemical methods for analysis it is proved that in the course of mechanochemical treatment of a Syrian phosphorite and Ammonium Sulphate mixture new phases have been formed. The thermal analysis proves an increase in the reaction properties of the Ammonium Sulphate and the Syrian phosphorite which is a prerequisite for the increase in the content of P2O5assimilated , in the activated phosphorite mixtures and the possibility to use them in the production of NP complex fertilizers.
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PHASE CHANGES IN THE SYRIAN PHOSPHORITE-Ammonium Sulphate SYSTEM Mechanochemical activation
Journal of Thermal Analysis and Calorimetry, 2006Co-Authors: V. Yaneva, I. DombalovAbstract:With a complex of physico-chemical methods for analysis it is proved that in the course of mechanochemical treatment of a Syrian phosphorite and Ammonium Sulphate mixture new phases have been formed. The thermal analysis proves an increase in the reaction properties of the Ammonium Sulphate and the Syrian phosphorite which is a prerequisite for the increase in the content of P 2 O assimilated 5 , in the activated phosphorite mixtures and the possibility to use them in the production of NP complex fertilizers.
M Alonso - One of the best experts on this subject based on the ideXlab platform.
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the effect of Ammonium Sulphate and ammonia on the liquid liquid extraction of zinc using lix 54
Hydrometallurgy, 1999Co-Authors: Francisco Jose Alguacil, M AlonsoAbstract:Abstract The extraction of zinc from Ammonium Sulphate solutions using LIX 54 as extractant has been studied. Experimental data show that zinc extraction decreases with increasing Ammonium Sulphate concentration of the aqueous phase. This decrease was attributed to the formation of metal ammine complexes in the aqueous phase which decreases the free zinc ion concentration. From the slopes of log DZn vs. pH plots, the extracted species has been found to be ZnR2; this stoichiometry was also confirmed by numerical treatment of experimental data and IR analysis of zinc loaded organic phases.
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The effect of Ammonium Sulphate and ammonia on the liquid–liquid extraction of zinc using LIX 54
Hydrometallurgy, 1999Co-Authors: Francisco Jose Alguacil, M AlonsoAbstract:Abstract The extraction of zinc from Ammonium Sulphate solutions using LIX 54 as extractant has been studied. Experimental data show that zinc extraction decreases with increasing Ammonium Sulphate concentration of the aqueous phase. This decrease was attributed to the formation of metal ammine complexes in the aqueous phase which decreases the free zinc ion concentration. From the slopes of log DZn vs. pH plots, the extracted species has been found to be ZnR2; this stoichiometry was also confirmed by numerical treatment of experimental data and IR analysis of zinc loaded organic phases.
Francisco Jose Alguacil - One of the best experts on this subject based on the ideXlab platform.
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the effect of Ammonium Sulphate and ammonia on the liquid liquid extraction of zinc using lix 54
Hydrometallurgy, 1999Co-Authors: Francisco Jose Alguacil, M AlonsoAbstract:Abstract The extraction of zinc from Ammonium Sulphate solutions using LIX 54 as extractant has been studied. Experimental data show that zinc extraction decreases with increasing Ammonium Sulphate concentration of the aqueous phase. This decrease was attributed to the formation of metal ammine complexes in the aqueous phase which decreases the free zinc ion concentration. From the slopes of log DZn vs. pH plots, the extracted species has been found to be ZnR2; this stoichiometry was also confirmed by numerical treatment of experimental data and IR analysis of zinc loaded organic phases.
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The effect of Ammonium Sulphate and ammonia on the liquid–liquid extraction of zinc using LIX 54
Hydrometallurgy, 1999Co-Authors: Francisco Jose Alguacil, M AlonsoAbstract:Abstract The extraction of zinc from Ammonium Sulphate solutions using LIX 54 as extractant has been studied. Experimental data show that zinc extraction decreases with increasing Ammonium Sulphate concentration of the aqueous phase. This decrease was attributed to the formation of metal ammine complexes in the aqueous phase which decreases the free zinc ion concentration. From the slopes of log DZn vs. pH plots, the extracted species has been found to be ZnR2; this stoichiometry was also confirmed by numerical treatment of experimental data and IR analysis of zinc loaded organic phases.
Y. Ivanov - One of the best experts on this subject based on the ideXlab platform.
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Phase composition changes due to Ammonium-Sulphate: attack on Portland and Portland fly ash cements
Construction and Building Materials, 1999Co-Authors: S. Miletić, M. Ilić, S. Otović, Radomir Folić, Y. IvanovAbstract:Abstract The behaviour of Portland cement and Portland cement with 30% fly ash in 10% Ammonium-Sulphate solution was studied within a comprehensive research program. All materials have been chemically analysed and their physico-chemical and mechanical properties have been investigated. X-ray diffraction was used for following changes into microstructure after storage of samples in Ammonium-Sulphate solution, and phase composition changes were identified. Based on XRD analysis of the phase composition changes it could be concluded that the main product of the Ammonium-Sulphate attack on cements is gypsum, followed by ettringite. The presence of gypsum is increased with the time of exposing of samples in the solution for both types of cement, but it has occurred that the increase of this phase is higher in the PCBP samples containing fly ash. Compressive strengths of PCB and PCBP samples after curing in water for 14 days and exposed in Ammonium-Sulphate solution for 3, 7, 14, 21 and 28 days are investigated. PCBP samples containing fly ash have better behaviour in Ammonium-Sulphate solution. Addition of fly ash to Portland cement makes this cement become more resistant to the Sulphate aggressive environment.
