Mesostructured calcium phosphate was synthesized by means of the combination of a soluble metal salt with an aqueous phenylphosphonic acid solution containing sodium dodecyl sulfate (SDS). Phenylphosphonic acid (PhP) was selected as the template to pattern the materials with pores generated by t...

Novel teichulosonic acid with the repeating unit →6)-β-D-GlcpNAc-(1→8)-α-Kdn-(2→ has been found in the cell walls of two Arthrobacter strains, VKM Ac-2549 and VKM Ac-2550. The teichulosonic acid was revealed in representatives of the genus Arthrobacter for the first time. Two other polymers...

Tooth surface modification is a potential method of preventing dental erosion, a form of excessive tooth wear facilitated by softening of tooth surfaces through the direct action of acids, mainly of dietary origin. We have previously shown that dodecyl phosphates (DPs) effectively inhibit dissol...

Major limitations of chalcones as clinical anticancer agents are water insolubility and poor bioavailability, which may be improved by a classic phosphate prodrug strategy that targets non-specific alkaline phosphatase (ALP) for releasing the parent drug in vivo. In this study, we found that BOC...

Relatively high surface area pure mesoporous iron-phosphorus oxide-based derivatives have been synthesized through an S+I− surfactant-assisted cooperative mechanism by means of a one-pot preparative procedure from aqueous solution and starting from iron atrane complexes and phosphoric and phosph...

In this study, citric acid (CA) was employed as a low-molecule organic acid to influence the adsorption performance of phosphorus by as-obtained magnetite. The factors including initial phosphate concentrations, dosage of citric acid, pH value, ion strength, contact time and temperature were exa...

Generally, phosphate rock contains about 0.05 wt% rare earth elements (REEs) on average. And the world commercial phosphate rock production is estimated to be 250 million tons per year, that makes phosphate rock a potential new REEs resource. However, low content of REEs in phosphate rock leads ...

A combined infrared spectroscopic and chromatographic study was undertaken in order to determine the adsorption properties of Chromosorb 102. This study shows that the unreacted vinyl groups in Chromosorb 102 are the active sites which give rise to extreme tailing of amine peaks when the materia...

Laser surface cladding was applied on a TC4 Ti alloy to improve its surface properties. Mixed TiC and Ti powders with a TiC-to-Ti mass ratio of 1:3 were put onto the TC4 Ti alloy and subsequently treated by laser beam. The microstructure and composition modifications in the surface layer were ca...

The bulk titanium tri-aluminide intermetallic alloy was fabricated via foil reactive sintering using Ti and Al foils in the vacuum. Scanning electron microscopy (SEM) results demonstrated that the original Ti and Al foils were fully reacted and the only synthesized product is monolithic intermet...

Samples of aluminium alloy 2024 and titanium alloy Ti-6Al-4V are irradiated with 2 keV helium (He) and argon (Ar) ion fluxes using FALCON ion source. Cone-like structures are found to be formed on the surface of two Al(2024) samples due to both irradiation conditions: Ar and He ions exposure rea...

Successful continuous laser joining of AISI 316L stainless steel with Ti6Al4V titanium alloy through pure vanadium interlayer has been performed. Three welding configurations were tested: one-pass welding involving all three materials and two pass and double spot welding involving creation of tw...

Silicomanganese (SiMn) fume is an industrial waste whose potency in the synthesis of alkaline activated mortar is yet to be explored. The major constituents of SiMn fume are SiO2, MnO2 and K2O. SiMn fume based mortar cured at room temperature (23 ± 2 °C) was synthesized with NaOH (NH) of varie...

Granulated air-cooled silicomanganese slag from ferro-alloy manufacturing plants is mainly disposed as a landfill waste. On the other hand, it is highly advisable and beneficial to partially replace Portland cement with suitable industrial wastes. The present work investigates the viability of u...

A hydrometallurgical process is proposed in this paper to recover manganese from silicomanganese slag. The paper reports the digestion–leaching experiments and precipitation and electrowinning assays to recover Mn from this residue. Silicomanganese slag was first treated with sulfuric acid in a...

A novel and eco-efficient CaMoO4/electroconductive geopolymer composite (CaMoO4/EGC) was synthesized for the first time to realize double goals of high-value recycling of silicomanganese slag (SS) and effective treatment of dye wastewater by photocatalytic degradation. The XRD and XPS results de...

Ferruginous manganese ores contain high concentrations of iron and having low Mn/Fe ratio and are not suitable to produce standard grade of silicomanganese. Thermochemical calculations based on available thermodynamics databases were used to understand the smelting behavior of the ore mix consis...

Thermal and spectroscopic studies on solid trivalent lanthanides and yttrium(III) α-hydroxyisobutyrates, Ln(C4H7O3)3·nH2O were investigated employing simultaneous thermogravimetry and differential thermal analysis (TG–DTA), elemental analysis, X-ray diffractometry, complexometry, experimental...

In this paper, leaching kinetics of yttrium from cathode ray tubes in sulphuric acid and hydrogen peroxide solution was investigated. It was found that hydrogen peroxide concentration, followed by temperature, has the greatest influence on leaching rate. Leaching rate is clearly enhanced by the ...

Yttrium 4-nitrocinnamate (Y(4-NO2Cin)3) was added to an aqueous chloride solution and studied as a possible corrosion inhibition system. Electrochemical techniques and surface analysis have been powerful tools to better understand the corrosion and inhibition processes of mild steel in 0.01 M Na...