Keqiang Xie
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View article: Experimental study on the sedimentation of silicon particles under the interference of flocculants
Experimental study on the sedimentation of silicon particles under the interference of flocculants Open
Silicon separation represents the initial step in the recovery of silicon from diamond wire saw silicon waste slurry. In the current recovery process, the relatively low recovery rate indicates an inadequacy in silicon separation. This art…
View article: Silicon Extraction from a Diamond Wire Saw Silicon Slurry with Flotation and the Flotation Interface Behavior
Silicon Extraction from a Diamond Wire Saw Silicon Slurry with Flotation and the Flotation Interface Behavior Open
Diamond wire saw silicon slurry (DWSSS) is a waste resource produced during the process of solar-grade silicon wafer preparation with diamond wire sawing. The DWSSS contains 6N grade high-purity silicon and offers a promising resource for …
View article: Review of Silicon Recovery from Diamond Wire Saw Silicon Powder Waste Based on Hydrometallurgical Process
Review of Silicon Recovery from Diamond Wire Saw Silicon Powder Waste Based on Hydrometallurgical Process Open
The photovoltaic (PV) industry is developing rapidly to support energy transformation and emission reduction. In the whole PV industry chain, diamond wire saw silicon powder (DWSSP) waste is the most promising secondary resource for recycl…
View article: Study on the thermal field material of FZ-Si crystal waste graphite purified by ultrasonic enhanced acid leaching
Study on the thermal field material of FZ-Si crystal waste graphite purified by ultrasonic enhanced acid leaching Open
This study examines the acid-leaching and purification process of waste graphite in the production of Czochralski monocrystalline silicon. The optimal leaching conditions are identified as a liquid-to-solid ratio of 6, a leaching temperatu…
View article: The study on the purification of waste graphite thermal field material of FZ-Si crystal
The study on the purification of waste graphite thermal field material of FZ-Si crystal Open
The rapid development of the photovoltaic industry has led to increased demand for monocrystalline silicon. Numerous waste graphite devices are generated in the process of crystal pulling, and the waste graphite thermal field contains the …
View article: Purification of Waste Graphite from Crucibles Used in Photovoltaic Crystallization by an Alkali-Acid Method
Purification of Waste Graphite from Crucibles Used in Photovoltaic Crystallization by an Alkali-Acid Method Open
The photovoltaic industry generates large amounts of waste graphite (WG) that contains useful metals that can be recycled into high-value products. This study elucidated the impurity elements and their existence states in WG, analyzed and …
View article: A Novel Approach For Recovering Multiple Valuable Metals from Gallium-Rich Residues of Phosphorus Flue Dust by Two-Stage Vacuum Reduction
A Novel Approach For Recovering Multiple Valuable Metals from Gallium-Rich Residues of Phosphorus Flue Dust by Two-Stage Vacuum Reduction Open
View article: Removal of sulfur by adding zinc during the digestion process of high-sulfur bauxite
Removal of sulfur by adding zinc during the digestion process of high-sulfur bauxite Open
This paper proposes a novel approach to sulfur removal by adding zinc during the digestion process. The effects of zinc dosage on the concentrations of different valence sulfur in sodium aluminate solution were investigated at length to fi…
View article: Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching
Recovery of Ni, Co, Mn, and Mg from nickel laterite ores using alkaline oxidation and hydrochloric acid leaching Open