gold metal Separating Techniques ? silicon chip separating technique? sugar separating technique? baking soda separating technique? diamond separating technique?
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gold metal separating techniques
Gold and silver are often extracted together from the same ores or recovered as by-products from the extraction of other metals. A solid mixture of the two, known as bullion, or doré, can be parted by boiling in nitric acid.
Silicon chip separating technique
To read the full-text of this research, you can request a copy directly from the authors.
To read the full-text of this research, you can request a copy directly from the authors.Citations (53)
To read the full-text of this research, you can request a copy directly from the authors.Citations (53)References (8)
To read the full-text of this research, you can request a copy directly from the authors.Citations (53)References (8)Abstract
To read the full-text of this research, you can request a copy directly from the authors.Citations (53)References (8)AbstractRecycling silicon from wiresaw slurry may be a good solution to reducing the high cost of silicon feedstock for solar cells. In this study, a cell was designed for separating Si and SiC particles in a buffer solution by gravity combined with electrical fields. According to the particle size distribution and zeta potential analysis, the average size of SiC particles was greater than that of Si particles in wiresaw slurries. The negative charges on the Si surfaces were more than that on SiC surfaces in buffer solution with a pH>2.5, increasing the average settling velocity for SiC particles and attractive force toward the anode for Si particles. Therefore, the horizontal and vertical movement of Si and SiC particles occurred simultaneously when a horizontal electrical field was applied to the cell. Due to the small size, low density and increased charges, the electrical field enhanced greater displacement for Si particles, leading to a Si distribution on the bottom of separation cell. Analysis of carbon content at various positions on the cell bottom indicates that the experimental results and predicted result were consistent. The highest efficiency of separation, with only 7.15wt% SiC remaining in the mixture, was obtained near the cell outlet; the original mixture had roughly 75.3wt% SiC. The recovered material with high Si content can be transferred to an induction furnace to generate solar-grade Si.
sugar separating technique
Sugars and other polyoxy compounds quickly react with borate or borate salts to form negatively charged complexes. In other words, sugars can be separated by anion exchange if using a borate buffer solution as the mobile phase. This method is especially effective in separating disaccharides from monosaccharides.
baKing soda separating technique
Baking soda is soluble in water. Rinse the mix through a filter with water. The sand will remain in the filter while the baking soda dissolves in the solution.
diamond separating techniques
Phase 1 - Crushing of the ore: The diamond-bearing ore is transported to a primary crusher, to crush the ore in to smaller particles, making it easier to handle (no bigger than 150mm).
Phase 2 - Scrubbing and screening: Scrubbing the ore will help to remove all loose particles that are not considered diamond-bearing.
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