El‑Midany, A. A., H. M. Mahmoud, and S. S. Ibrahim, "Nano‑CaCO3 for Repair of Historic Joint Mortar", Iranian Journal of Science and Technology, Transactions of Civil Engineering, vol. 45, pp. 2517–2523, 2021.
Hue, K. ‑A. A., A. A. El‑Midany, and H. E. El‑Shall, "Effect of Corn Oil Addition to TCMA‑Modified Clay on ZEN Removal", Mining, Metallurgy & Exploration , vol. 38, pp. 2493–2499, 2021.
ABDEL-KHALEK, M. A., and A. A. EL-MIDANY, "Stabilizing Na-bentonite by Poly(Diallyl Dimethyl Ammonium Chloride) Adsorption", Inzynieria Mineralna, vol. 1, pp. 81-86, 2021.
Farag, R. M., and A. A. EL-MIDANY, "Aspects of Talc Grinding in the Presence of Sodium Dodecyl Sulfonate", Journal of surfactants and detergents, vol. 24, pp. 801-807, 2021.
Farahat, M. M., and A. A. El-Midany, "Removal of Major Phosphate Impurities by Flotation using DTAB Collector", Tenside surfactants and detergents, vol. 58, issue 3, pp. 230-236, 2021.
R.M.Farag, A.M.Salem, A.A.El-Midany, and S.E.El-Mofty, "Bentonite Suspension Filtration and its Electro-Kinetics in the Presence of Additives", Tenside surfactants and detergents, vol. 58, issue 2, pp. 121-126, 2021.
N.Khairy, I. A.El-Magd, S. E.El-Mofty, and A.A.El-Midany, "Oil shale breakage in a ball mill using different media types", OBOGASHCHENIE RUD, vol. 394, issue 4, pp. 21-26, 2021.
Gamal, R., N. A. A. Edress, K. A. Abuhasel, A. A. EL-MIDANY, and S. E. El-Mofty, "Role of Magnesium Salts in Coal De-Ashing by Flotation", Tenside surfactants and detergents, vol. 58, pp. 51-58, 2021.
Sobhy, A., A. A. EL-MIDANY, and S. S. IBRAHIM, "Celestite upgrading by jigs in presence of steel balls as ragging material", Physicochemical Problems of Mineral Processing, vol. 57, issue 5, pp. 118-128, 2021.
El-Mofty, S. E., P.Patra, A. A. El-Midany, and P.Somasundaran, "Dissolved Ca2+ ions adsorption and speciation at calcite-water interfaces: Thermodynamics and spectroscopic studies", Separation and purification technology, vol. 257, pp. 117834, 2021.