· Malgré l'absence de critères objectifs d'appréciation du seuil de l'enrichissement illicite, la question de la constitutionnalité de l'article 37 de la loi n°201846 n'a pas été posée en Tunisie. (14) Voir article 193 du Code des sociétés commerciales.
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Mineralogical and chemical investigation of Tunisian ...
· · Phosphate washing waste (PWW) is one of the wastes generated by the phosphate mine with a very high amount. This waste was investigated in this work to study the effect of the calcination of the PWW at four different temperatures 600 °C, 700 °C, 800 °C and 900 °C on its mineralogical and chemical composition. The samples were investigated by Xray powder diffraction, .
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· According to the modelling study, the calcination temperature demonstrated the most effective parameter, while the ICG concentration indied the least effect. By verifying the optimum hydrothermal fabriion conditions, the thermal decomposition of ammonium sulphate (TDAS) was applied to the functionalized surface areas and mesoporous walls by –SO 3 H functional groups.
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Expérience et nouvelles techniques d''enrichissement des . Besoin et Contexte : Pendant longtemps certains gisements importants de phosphate ont fourni des minerais qui ne nécessitaient qu''un traitement faisant appel aux techniques de : 9Criblage et séchage, 9Criblage, lavage et séchage, 9Traitement thermique (calcination, EAS,).
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Thus, chatode materials were made from LiFePO4 that synthesized at calcination temperatures 800oC and 900oC. In conclusion the material chatode from LiFePO4 that had been synthesized had so many impurities because it was hard to get single phase of nanoparticles LiFePO4 and need more improvement in optimizing the process condition for ideal chatode material.
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· Tunisie, l'écroulement de la production de phosphate. By. La rédaction de Mondafrique. . 2 septembre 2021. La production nationale est tombée à 2,7 millions de tonnes en 2020soit une baisse de la production de 80%). Ce qui fait passer la Tunisie en dix ans du 5e au 12e rang mondial. En dix ans, la production de phosphate a chuté de 80%.
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