Scandium is a rare earth element that has been declared critical raw material by the EU. Its availability low but demand for it increasing. Bauxite residue presents possible European source. A novel process to extract scandium from incorporates anti-solvent crystallization, which delivers salt (NH4)3ScF6 can be calcined ScF3 direct use in an aluminum alloy. However, this crystallization produce...

Anomalously saline waters in Ocean Drilling Program Holes 1127, 1129, 1130, 1131 and 1132, which penetrate southern Australian slope sediments, and isotopic analyses of large benthic foraminifera from southern Australian continental shelf sediments, indicate that Pleistocene–Holocene meso-haline salinity reflux is occurring along the southern Australian margin. Ongoing dolomite formation is obs...

Introduction. The paper considers the influence of wear on formation a “white band” in metastable austenitic, martensitic-austenitic and secondary hardening steels Cr−Mn−Ti system additionally alloyed with Mo, B, V. structure phase composition resistance sparing. Results. Surfacing studied materials was carried out copper molds different rates forced cooling. Metastable V were studied. Addition...

The circadian rhythm of the urinary saturation of uric acid, sodium acid urate, and ammonium acid urate was studied in 5 normal healthy male volunteers before and during 5 days of treatment with sodium-potassium citrate (1 g t.i.d., 1 g q.i.d., or 3 g t.i.d.). Urinary saturation was estimated on the relative supersaturation scale of Marshall and Robertson. Uric acid relative supersaturation var...

In this research, the effect of two process control agent: methanol (liquid state) and stearicacid (solid state) on mechanical alloying process of Ti and Al with equal at%(Ti50Al50) wereinvestigated. Phase transformation at presence of two PCA was: at first, powder mixture wastransformed to a metastable solid solution of Al in Ti lattice (disordered hcp) and then transformed toamorphous phase w...

Electrified downstream processes for biotechnologically produced carboxylic acids reduce waste salt generation significantly and make biotechnological production ecologically economically more attractive. In order to design, optimize, scale-up control electrochemically induced crystallization processes, knowledge of the metastable zone width (MSZW) is essential. An optical observation approach ...