1. Evaluation of Sebaiya-West phosphate concentrate for nitrophosphate fertilizer production;Abdel-Aal;Minerals Engineering,1995
2. Problems encountered during acidulation of phosphate rocks with high iron, potassium and carbonate contents for phosphoric acid production;Abdel-Aal,1991
3. Industrial simulation of continuous leaching and filtration processes; case study of phosphoric acid production;Abdel-Aal;Acta Metallurgica Slovaca,1998
4. Phosphoric Acid by liquid-liquid Extraction;Baniel;Brit. Chem. Eng.,1959