Copper slag is a by-product generated during the smelting and refining process of copper. When copper ore is melted in a furnace, impurities separate from the molten copper and form a material called slag. This slag is a dense, glassy material that is typically dark brown or black in color and consists primarily of iron, silica, and other metals such as aluminum, calcium, and magnesium, along with small amounts of copper that were not recovered during the smelting process.
Copper slag is commonly used in various industrial applications due to its physical and chemical properties. One of the most common uses is as an abrasive material for sandblasting, where it is valued for its hardness and ability to clean and prepare metal surfaces. In construction, copper slag is used as a replacement for sand in concrete and asphalt mixtures, where it enhances the strength and durability of the final product. It is also used as a filler material in road construction and land reclamation projects.
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