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1. Effect of phosphate quality on foam generation during the phosphoric acid production process

Author

Hamid Mazouz, Samia Yousfi, Rachid Boulif, Hicham Essallaki, Islaam Anouar, Rim Jouraiphy, Mouna Latifa Bouamrani, Bilal Essaid, Department of Chemistry, Faculty of Sciences Ben M’sik, University Hassan II [Casablanca], Engineering, industrial management, and innovation laboratory, Faculty of Science and Techniques (FST), Faculty of Science and Techniques, Université Hassan 1er [Settat], Groupe OCP, CBS laboratory, Mohammed VI Polytechnic University [Marocco] (UM6P), Département Procédés pour l'Environnement et Géoressources (PEG-ENSMSE), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Environnement Ville Société (EVS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École nationale supérieure d'architecture de Lyon (ENSAL)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Nationale des Travaux Publics de l'État (ENTPE)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon), UniversityHassan II - Faculty of Sciences Ben M'Sik - Department of Chemistry, University HASSAN I - Faculty of Science and Techniques - Engineering, industrial management, and innovation laboratory, OCP Group, Mohammed VI Polytechnic University - CBS laboratory, Université Mohammed VI Polytechnique [Ben Guerir] (UM6P), Environnement, Ville, Société (EVS), École normale supérieure de Lyon (ENS de Lyon)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), and Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Total organic carbon, organic carbon, General Medicine, Phosphate, phosphate rock, chemistry.chemical_compound, Defoamer, carbonate, Volume (thermodynamics), chemistry, Phosphorite, Chemical engineering, foamingability test, Carbonate, lipids (amino acids, peptides, and proteins), [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, cardiovascular diseases, foam, Phosphoric acid
Abstract

The presence of organics materials in phosphate ores generates foam during the manufacture of phosphoric acid, thus affecting the production performance and the quality of the products. Today, in the phosphate industry defoamers are used to reduce the negative impact of foam phosphoric production. In the present work, we focusedon root cause evaluation for foam generation during the phosphoric acid production process, we evaluatedthe effect of phosphate rock quality in terms of organic carbon (OC) and carbonate content, on foam generation using a laboratory protocol for foaming ability evaluation. The results show that there is a relationship between the volume of the foam generated and the values of those impurities, while the volume of foam generated is higher when the concentration of OC and Carbonate is high. In our work, we confirm that the foaming ability of the phosphate rock can be avoided if the concentration of organic carbon less than 0.1% and less than 3% for carbonate.

Published
2021
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2. Binary and ternary alkali polyphosphates (MPO3, M = Li, Na, K) for thermal energy storage

Author

Ange Nzihou, Patrick Sharrock, Doan Pham Minh, Hieu Pham Sy, Alain Germeau, Hoan Nguyen Xuan, Rachid Boulif, Nawal Semlal, Claudia Toussaint, Abdoul Razac Sane, Vietnam National University [Hanoï] (VNU), Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement (RAPSODEE), Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Duy Tan University (DTU), OCP SA, University of Mohamed VI Polytechnic (UM6P), Prayon SA, IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Na-K-Li-PO 3, Analytical chemistry, Na-K-Li-PO3, 02 engineering and technology, Thermal energy storage, 7. Clean energy, 01 natural sciences, chemistry.chemical_compound, [SPI]Engineering Sciences [physics], Physical and Theoretical Chemistry, Thermal analysis, Ternary, Polyphosphate, Thermal decomposition, Atmospheric temperature range, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Alkali metal, 010406 physical chemistry, 0104 chemical sciences, chemistry, 13. Climate action, Alkali polyphosphate, Melting point, 0210 nano-technology, Ternary operation
Abstract

International audience; Up-to-date, solar salt (a mixture of 60 mass% NaNO3 and 40 mass% KNO3) is practically the only media for thermal energy storage (TES) in concentrated solar power (CSP). This commercial product’s utilization is limited below 550 °C to avoid an irreversible thermal decomposition. The development of new performing TES materials is decisive for the deployment of CSP technology. Our recent work reported promising results obtained with mono-alkali polyphosphate (M-PO3) as TES materials. These materials can work up to around 900 °C, but their melting point is still high, which is at least 628 °C. In order to lower their melting point, binary and ternary mixtures of alkali polyphosphates are investigated in this work. Dif- ferent mixtures made of two or three alkali polyphosphates were prepared and studied using thermal analysis methods. The most promising mixture found in this work was the ternary Li-Na-K-PO3, which contained 33.3% (mol%) of each alkali metal. This mixture can be used as a liquid TES material in the temperature range of 398 to 900 °C. The results open new prospects for the development of the thermal energy storage field.

Published
2021
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3. Statistical Study and Modeling of the Effect of Phosphoric Acid Impurities on the Physical Quality of Ammonium Phosphate Determined from the Production Data Using Artificial Neural Network

Author

Driss Dhiba, Abderrahime Moustaoui, Essaïd Bilal, Mehdi Khouloud, Elmouloudi Sabbar, Nacira Lebbar, Mohammed El-Asri, Rachid Boulif, Université Chouaib Doukkali (UCD), Groupe OCP, Environnement Ville Société (EVS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École nationale supérieure d'architecture de Lyon (ENSAL)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Nationale des Travaux Publics de l'État (ENTPE)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon), Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département Procédés pour l'Environnement et Géoressources (PEG-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Sidi Mohammed Ben Abdellah University, University of Chouaîb Doukkali - Sciences Faculty - Laboratory of Physic and Chemistry of Materials, Sidi Mohamed Ben Abdellah University - Sciences and technologies Faculty - Laboratory of Applied Organic Chemistry, OCP group SA - Direction of research and developpement - Fertilizer Laboratory, OCP group.SA - Fertilizer producing entity, Environnement, Ville, Société (EVS), École normale supérieure de Lyon (ENS de Lyon)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS), and Université Sidi Mohamed Ben Abdellah (USMBA)

Subjects
Granulation yield, Materials science, Ammonium phosphate, Artificial Neural Network (ANN), Principal Components Analysis (PCA), Ammonium phosphates fertilizers, Impurities, Granulation yield, Principal Components Analysis (PCA), Artificial Neural Network (ANN), engineering.material, [CHIM.INOR]Chemical Sciences/Inorganic chemistry, [INFO.INFO-NE]Computer Science [cs]/Neural and Evolutionary Computing [cs.NE], chemistry.chemical_compound, Granulation, chemistry, Yield (chemistry), Principal component analysis, Linear regression, engineering, Data analysis, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Fertilizer, Ammonium phosphates fertilizers, Biological system, Phosphoric acid, Impurities
Abstract

International audience; The monitoring of the physical properties of fertilizers presents a lot of interest at different levels. All the problems related to the behavior of the granules (segregation, spreading, granulation, hardness…) need a better characterization of the fertilizers in order to understand and/or predict them.The scientific community is led to develop a variety of modeling approaches for, on the one hand, the understanding of the dynamics of impurities originating from phosphoric acid during the manufacture of fertilizers, and on the other hand, the evaluation of the effectiveness of measurements and data monitoring from production and the fluctuations in the physical quality of the fertilizers that follow. In this investigation of the influence of elements such as Fe, Al, Mg, F-, Si, Na, K and Cl on fertilizer quality, we gathered and followed-up data from production lines of Ammonium phosphate fertilizers for several months. The aim of the current work is the statistical study and modeling of the phosphoric acid impurities effect on the physical quality of fertilizers such as granulation yield, grain size, and the average diameter of granules D50, based on the analysis of data from different production lines by applying the Artificial Neural Network (ANN) approach. In addition models, were constructed using Multiple Linear Regression (MLR) and Principal Components Analysis (PCA).

Published
2018
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