16 Result(s)
within
Guangshi Li
Characterization and Evaluation of Materials
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Article
Electrosynthesis and Evaluation of Homogeneous CoCrNi Medium-Entropy Alloys for Structural Applications
Medium-entropy alloys (MEAs) have received increasing attention for various applications due to their excellent properties. This work demonstrates a facile electrolysis method to directly prepare homogeneous C...
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Article
Electrodeposition of Si Films from SiO2 in Molten CaCl2-CaO: The Dissolution-Electrodeposition Mechanism and Its Epitaxial Growth Behavior
Molten salt electrodeposition of crystalline silicon (Si) films from silicon dioxide (SiO2) in molten calcium chloride (CaCl2)-calcium oxide (CaO) has been systematically investigated. The dissolution-electrodepo...
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Article
Synergistic Preparation of Metalized Pellets Using Stainless-Steel Pickling Sludge and Blast-Furnace Bag Dust
Stainless-steel pickling sludge (SSPS) and blast-furnace bag dust (BFBD) contain heavy metals such as Ni and Cr, which are harmful to the environment. A new approach of “using waste to treat waste” is proposed...
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Article
Facile Electrodeposition of Ti5Si3 Films from Oxide Precursors in Molten CaCl2
It is hard to produce dense refractory Ti5Si3 films at low temperature because of the extremely high melting point (2130 °C) of Ti5Si3. Herein, we report the facile electrodeposition of Ti5Si3 films from TiO2 and...
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Chapter and Conference Paper
Synchronous Extraction of Valuable Metals from Low-Nickel Matte Using Ammonium Sulfate Roasting-Water Leaching Process
Owing to suffering the poor recovery of valuable metals and the massive loss of Co metal by the traditional pyrometallurgical technology to process the low-nickel matte. Herein, a sulfate roasting followed by ...
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Article
A Novel Ammonium Chloride Roasting Approach for the High-Efficiency Co-sulfation of Nickel, Cobalt, and Copper in Polymetallic Sulfide Minerals
In this study, we propose a novel temperature-programmed ammonium chloride (NH4Cl) roasting–water-leaching process to extract nickel (Ni), cobalt (Co), and copper (Cu) from polymetallic sulfide minerals in a sync...
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Chapter and Conference Paper
Synthesis of Na2(Ni, Fe)(SO4)2 Cathode Materials from Nickel Sulfide Concentrate by Combined Pyro- and Hydrometallurgical Processes
In this study, a compact process was introduced to prepare the sulfate-based polyanionic nano cathode material Na2(Ni, Fe)(SO4)2 from sulfide concentrate. The Na2(Ni, Fe)(SO4)2 was synthesized with a four-step ...
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Chapter and Conference Paper
Isothermal Sulphation Roasting of Nickel Sulphide Minerals in a Static Air Atmosphere
offers the potential to simultaneously extract valuable metals from . In this study, the influences of temperature and addition on the sulphation of valuable metals were investigated under isothermal...
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Chapter and Conference Paper
Experimental Study on Dechlorination of Cold-Rolling Sludge at High-Temperature Roasting
Hitherto, the content after dehydration in enterprises has reached up to 60%. However, it contains a lot of chlorine, which is the source of dioxins. And the presence of chlorine makes the possess high...
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Chapter and Conference Paper
Ab Initio Study on the Oxidation Mechanism of Millerite
Millerite (NiS) as the important source for extraction has been investigated by density functional theory calculations to study the . Atomic oxygen adsorption and molecular oxygen adsorption on the (001) ...
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Chapter and Conference Paper
Mechanism of the Chlorination Roasting of Nickel Sulphide Concentrate with Ammonium Chloride
resources are mainly in the form of sulphides in China, and chlorination is one of the most important means of treating ore. This paper reports the results of an investigation of the of of flota...
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Article
Mechanism of Na2SO4 Promoting Nickel Extraction from Sulfide Concentrates by Sulfation Roasting–Water Leaching
As a more environmentally friendly and energy-efficient route, the sulfation roasting–water leaching technique has been developed for highly effective extraction of non-ferrous metals from nickel sulfide conce...
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Chapter
Recovery of Nickel and Copper from Polymetallic Sulfide Concentrate through Salt Roasting Using NH4Cl
The roasting of nickel-bearing sulfides is a complex but important process which has not been adequately characterized. Combination of X-ray diffraction and scanning electron microscopy has been proved to be u...
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Chapter
Mineralogical Analysis of Nickel/Copper Polymetallic Sulfide Ore by X-Ray Diffraction Using Rietveld Method
The analysis of mineralogical characteristics has important significance in comprehensive utilization of polymetallic sulfide mineral resources. The wavelength dispersive X-ray fluorescence (WDXRF) and X-ray d...
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Chapter
Corrosion Mechanism of MgO-C Ladle Refractory in Contact with MgO-CaO-Al2O3-SiO2 Slag
The corrosion resistance and corroded microstructure of MgO-C refractory in molten slag are investigated by immersion test in muffle furnace at 1600 °C. The microstructure and chemical compositions of the spec...
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Chapter
Phase Transformation and Element Migration in the Oxidation Process of Nickel-Copper Sulfide Ore
The preoxidation of the ore has a profound significance to the concentration, separation and purification of nickel and copper from the lean complex ore. In this paper, the natural Ni-Cu sulfide mineral sample...
