Titlebook: Rare Metal Technology 2016; Shafiq Alam (associate professor),Hojong Kim (assi Book 2016 The Minerals, Metals, and Materials Society 2016

WAX

Production of Tungsten by Pulse Current Reduction of CaWO4t electrochemical production of tungsten from CaWO. (scheelite) which is estimated as the seventy percent of the all tungsten reserves of the world. This paper investigates the application of pulse current in the electrochemical reduction of CaWO. pellets attached to a current collector. The electro

stress-test

Kinetics of Extracting Vanadium from Stonecoal by Alkali Leaching ratio, the grinding fineness of stone coal, and stirring speed on the vanadium leaching rate was studied. The kinetics analysis for the process is presented by the shrinking core model. The results show that the vanadium leaching ratio of roasted stone coal can be beyond 75% at the 6% NaOH addition

小木槌

瑣碎

Obsessed

Adsorptive Recovery of Palladium and Platinum from Acidic Chloride Media Using Chemically Modified Ption capacities for gold(III), palladium(II) and platinum(IV) were evaluated as 3.30, 1.67 and 1.00 mol/kg, respectively. Those for palladium(II) and platinum(IV) are higher than those of simple quaternary ammonium chloride type of chemically modified persimmon tannin gel and commercially available anion exchange resin.

Deadpan

Production of Tungsten by Pulse Current Reduction of CaWO4ith dilute hydrochloric acid solutions and characterized by X-ray diffraction and scanning electron microscopy. Examination of the results revealed that metallic tungsten was obtained by pulse current reduction.

debase

Hydrometallurgical Extraction of Rare Earth Elements from Low Grade Mine Tailingsmove the unwanted Ca as Ca(NO.).. Analysis of the leach liquor reveals extraction ratios of between 75% and 100% for the heavy REE (e.g. Y, Eu, Dy, …) and below 40% from the light REEs (i.e. Ce, La). Full phosphorous extraction was also achieved.

魔鬼在游行

和平

Pelago