Enhancing Molten Sulfur Filtration during Sulfuric Acid Manufacturing for Phosphate Fertilizer Production in Morocco with Cellulose-Based Filter Aids

Autor: Meriem Essakhraoui, Abdelhamid Nyassi, Aziz Boukhair, Hajar Bellefqih, Nils Haneklaus, Hamid Mazouz, Essaid Bilal

Publikováno v: Applied Sciences, Vol 13, Iss 15, p 8879 (2023)

The filtration of liquid sulfur is a key operation in the production of sulfuric acid that is used for phosphate fertilizer production in Morocco and elsewhere. The purpose of the filtration process is to remove solid impurities from liquid sulfur, w

Externí odkaz: https://doaj.org/article/ef116dc184224c7bad6412477f02b3a0

Rare Earth Elements Distribution During Phosphoric Acid Production

Autor: Mohammed Fahad, Aziz Boukhair, Rim Jouraiphy, Hamid Mazouz, Ahmed Mahrou, Fatima Ezzahra Arhouni, Mohammed Hakkar

Publikováno v: Mining, Metallurgy & Exploration. 39:161-167

The wet process is the most commonly used worldwide for phosphoric acid (PA) production, in which phosphate rock (PR) is reacted with strong acid mainly sulfuric acid. This work aims on studying the rare earth elements (REEs) distribution during the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f689d3da2a723aab6c72ad22be973814
https://doi.org/10.1007/s42461-021-00513-9

Radon exposure assessment and its decay products aerosols in some houses of the province of El Jadida, Morocco

Autor: Mohammed Fahad, Aziz Boukhair, Mohammed Benjelloun, Saad Ouakkas, Maged Ahmed Saleh Abdo

Publikováno v: Air Quality, Atmosphere & Health. 14:129-137

In this study, indoor and outdoor activities of radon and its progeny were measured using the passive dosimetry CR-39 detectors inside and outside of 60 houses of El Jadida province, Morocco. Thereafter, three radiological parameters namely the poten

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::17ca02b1d0fbf501055cda2d29b60ca3
https://doi.org/10.1007/s11869-020-00919-2

Enhancing rare earth element transfer from phosphate rock to phosphoric acid using an inexpensive fly ash additive

Autor: Mohammed Hakkar, Mohammed Benjelloun, Amit Roy, Essaïd Bilal, Ahmed Mahrou, Hamid Mazouz, Nils Haneklaus, Fatima Ezzahra Arhouni, Martin Bertau, Aziz Boukhair, Gerald Steiner

Publikováno v: Minerals Engineering
Minerals Engineering, 2021, 172, pp.107166. ⟨10.1016/j.mineng.2021.107166⟩
Minerals Engineering, Elsevier, 2021, 172, pp.107166. ⟨10.1016/j.mineng.2021.107166⟩

International audience; Adding active silica (SiO2) to reduce the free fluoride content is a known method to improve the filterability of phosphogypsum (PG) during wet phosphoric acid (WPA) processing of phosphate rock (PR). Besides, this process can

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c85f1d6581e0c05c3d61fa03f0a32a3b
https://hal-emse.ccsd.cnrs.fr/emse-03448529

Rôle des évaluations continues dans la prédiction des performances des élèves au secondaire collégial

Autor: Aziz Boukhair, Aafaf Essedaoui, Abdelali Bitar, Marya Bouanis

Publikováno v: European Scientific Journal ESJ. 16

La presente etude traite l’effet de l’evaluation continue (controle continu) sur les performances des eleves lors des examens de fin de semestres (examen local, examen regional et note globale d‘evaluation) en Mathematiques et en Sciences physi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6de93c85d4656676b38266a120c1c9a5
https://doi.org/10.19044/esj.2020.v16n31p332