This paper investigated a pellet ore production process in which vanadium was extracted from and titanium magnetite concentrates using sulfuric acid leaching. Calcium magnesium were added to the iron concentrate during produce calcium vanadate after roasting. The pellets leached with solution extract V5+. resulting had compressive strength of 3375 N primary roasting, good morphology leaching, s...

Black shale ore contains rich strategic metal resources such as vanadium, nickel, and molybdenum, but due to its complex composition, it is currently only used in the vanadium extraction industry. Metals nickel molybdenum have not been effectively recovered, resulting environmental pollution resource waste. Using mineralogical features a combination of beneficiation metallurgy-based tests, pres...

The effects of 1, 10, or 40 micrograms/ml of vanadium, given for six or seven months as sodium metavanadate in drinking water on cardiovascular and biochemical variables and the electrolyte metabolism of male Sprague-Dawley rats were investigated. At the end of the exposure period, all animals exposed to vanadate had increased systolic and diastolic blood pressure. This effect was not dose depe...

Abstract The catalytic oxidative dehydrogenation of propane (ODHP) is a challenging reaction due to facile competing overoxidation CO x . gaseous disulfur molecule, S 2 , isoelectronic with O and has been shown act as an alternative, “soft oxidant” for the analogous process (SODHP) over bulk metal sulfide catalysts. However, these catalysts suffer from low surface areas ill‐defined active sites...

Aim: There are several epidemiological, clinical and experimental studies that relate heavy metal exposure to Prostatic adenocarcinoma (PCa). In this study, the relationship between benign prostatic hyperplasia (BPH) PCa, some metal/nonmetal concentrations at level of histopathological diagnosis was investigated. Materials Methods: Seventy-one patients were included in study. The samples taken ...

Silica Vanadic Acid, SVA, (oxo-vanadium has been supported on silica) as a dual Lewis and Bronsted acid ability was prepared and efficiently catalyzed one-pot multi-component condensation of enolizable ketones or alkyl acetoacetates with aromatic aldehydes, acetonitrile and acetyl chloride. The described reaction was produced β-acetamido ketone or ester derivatives in high to excellent yields i...

X-ray absorption near-edge structure (XANES) spectroscopy is a powerful tool to reveal key structural and electronic features of isolated catalytic sites, yet insights into the molecular more detailed orbital analysis through combination experimental computed XANES are necessary for accurate interpretation spectra, especially when significant heterogeneity exists among sites. Herein, we present...