Copper Ore Mining and Smelting Equipment

Copper Ore Mining

Copper mining has a long history. As in all mining operations, the ore must usually be beneficiated (concentrated). To do this, the ore is crushed then it must be roasted to convert sulfides to oxides, which are smelted to produce matte. Finally, it undergoes various refining processes, the final one being electrolysis. For economic and environmental reasons, many of the byproducts of extraction are reclaimed. Sulfur dioxide gas, for example, is captured and turned into sulfuric acid ¡ª which is then used in the extraction process.

Copper Ore Smelting

Smelting of low-grade copper scrap begins with melting in either a blast or a rotary furnace, resulting in slag and impure copper. If a blast furnace is used, this copper is charged to a converter, where the purity is increased to about 80 to 90 percent, and then a reverberatory furnace, where copper of about 99 percent purity is achieved. In these fire-refining furnaces, flux is added to the copper and air is blown upward through the mixture to oxidize impurities. These impurities are then removed as slag. Then, by reducing the furnace atmosphere, cuprous oxide (CuO) is converted to copper. Fire-refined copper is cast into anodes, which are used during electrolysis. The anodes are submerged in a sulfuric acid solution containing copper sulfate. As copper is dissolved from the anodes, it deposits on the cathode. Then the cathode copper, which is as much as 99.99 percent pure, is extracted and recast. The blast furnace and converter may be omitted from the process if average copper content of the scrap being used is greater than about 90 percent. The process used by an U. S. facility involves the use of a patented top-blown rotary converter in lieu of the blast, converting, and reverberatory furnaces and the electrolytic refining process described above. This facility begins with low-grade copper scrap and conducts its entire refining operation in a single vessel.

Copper Ore Mining and Smelting Equipment for Sale

SBM is really an expert beneficiation plant manufacturer in Asia. We specialize in producing all kinds of crusher, mill, sand making machine as well as some beneficiation auxiliary equipment. We offer you various types of beneficiation plant to meet the demand of different materials processing. SBM can accord to the needs of your dressing and the actual situation of mine for you to choose the most appropriate and effective machine. Our company will create a perfect product line and price details for you. First class products and considerate service are provided to all the customers for 24 hours. In addition, we also set up around the relevant offices to help customers better treatment in production problems.

Hot Products

Crusher machine is SBM Machinery's special equipment type, it can take the functions of the above machines together in order to make a more convenient products experience.

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