Waste glass based geopolymers have a high potential in the future as an eco-friendly inorganic binder. However, limited studies are available on use of residue waste recycling this type This work investigates valorization Residual Glass (RWG) (the final centers) crushed at d90 < 13 μm geopolymer activating solution. RWG is thus used source free silicon with metakaolin (MK) aluminosilicates. The...

Abstract Kaolin samples were collected to study the mineralogical, texture, chemical composition, thermal behavior, and treatment also possibility convert kaolinite mineral into metakaolin use it as a natural pozzolanic and/or geopolymer materials. Kaolinite is main constituent of clay mineral, which related many weathering parent rocks complete leaching alkali elements under warm, humid semi-a...

Tantalum, niobium, and their oxides are important precursor materials, essential for high-temperature alloys electronic devices. The primary hydrometallurgical extraction technique to extract tantalum niobium from minerals involves hydrofluoric acid (HF) digestion of the concentrates, followed by solvent as an oxide separation purification step. Solvent extraction, on other hand, releases organ...

Petrography and physicomechanical properties of alkali granites, alkali quartz syenite, and nepheline syenite from Ambela, NW Pakistan, have been investigated. Whereas the alkali quartz syenite and most of the alkali granites are megaporphyritic, the nepheline syenite and some of the alkali granites are microporphyritic. Their phenocryst shape and size and abundance of groundmass are also diffe...

The results of our infrared reflectance studies of single and mixed alkali borate glasses are reviewed and discussed in the context of the network structure and the interactions between alkali cations and their sites in the glass. In particular, we focus on the strong influence of the alkali cation type, content, and alkali subsitution on the structure of the network building units. The dominan...

This study was carried out on saline soils of Sahl El-Houssinia, El-Sharkia Governorate to evaluate three different water sources as a leaching and irrigation water in these soils and their use effect on some trace elements accumulation in the different soil layers. The using water sources were Bahr El-Bakar drain, Bahr Hadoos drain and El-Salam canal. These sources were used in the leaching th...

In the present study, the feasibility to use phosphate solubilizing bacteria (PSB) to develop a biological leaching process of rare earth elements (REE) from monazite-bearing ore was determined. To predict the REE leaching capacity of bacteria, the phosphate solubilizing abilities of 10 species of PSB were determined by halo zone formation on Reyes minimal agar media supplemented with bromo cre...