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Recovery of H2SO4 from an acid leach solution by diffusion dialysis.
Diffusion dialysis with a series of anion exchange membranes was used to recover H(2)SO(4) from an acid leach solution produced during the vanadium manufacturing process. The effects of sulfuricExpand
Analyses of light extraction efficiency in GaN-based LEDs grown on patterned sapphire substrates
The GaN-based LEDs external quantum efficiency (EQE) is significantly improved by using the patterned sapphire substrate (PSS) technique. The enhancements in the light extraction efficiency (LEE) andExpand
Simultaneous determination of progestogens, androgens, estrogens and phenols in water, sediment and biological samples by enolisation–silylation with ASE-GPC-SPE-GC/MS
This research has developed an enolisation–silylation with accelerated solvent extraction (ASE)-automated gel permeation chromatography (GPC)-solid phase extraction (SPE)-gas chromatography/massExpand
Recovery of Vanadium from H2SO4-HF Acidic Leaching Solution of Black Shale by Solvent Extraction and Precipitation
The recovery of vanadium from sulfuric and hydrofluoric mixed acid solutions generated by the direct leaching of black shale was investigated using solvent extraction and precipitation methods. TheExpand
Hydrothermal Sulfidation and Flotation of Oxidized Zinc-Lead Ore
The sample with smithsonite and cerussite as the main valuable metal minerals is a carbonate-hosted lead-zinc ore in the current study. Hydrothermal sulfidation of oxidized zinc-lead ore was carriedExpand
Epitaxial lateral overgrowth of InGaN/GaN multiple quantum wells on HVPE GaN template
In this study, epitaxial lateral overgrowth (ELOG) on different kinds of patterned hydride vapour phase epitaxy (HVPE) templates was successfully realized by metal organic chemical vapor depositionExpand
HVPE homoepitaxial growth of high quality bulk GaN using acid wet etching method and its mechanism analysis
Abstract In this paper, crack-free 2-inch bulk GaN wafer with the thickness up to 3 mm was obtained by HVPE homoepitaxy. A new method of acid wet etching was used to pre-treat GaN substrate beforeExpand
Separation and Precipitation of Nickel from Acidic Sulfate Leaching Solution of Molybdenum-Nickel Black Shale by Potassium Nickel Sulfate Hexahydrate Crystallization
AbstractNickel was separated and precipitated with potassium nickel sulfate hexahydrate [K2Ni(SO4)2·6H2O] from acidic sulfate solution, a leach solution from molybdenum-nickel black shale. TheExpand
Extraction of Valuable Metals from High-Iron Zinc Sulfide Concentrate by Reductive Leaching
This study was conducted as part of the development of a new process to recover valuable metals of zinc, copper and indium from high-iron zinc sulfide concentrate (HIZSC) by the reductive leaching ofExpand