Xinhai Mining Equipment is committed to providing "mining industry chain services (EPC+M+O)".
Xinhai is the earliest company who put forward the turnkey solution for mineral processing plant (EPC + M+O) in China, including mining technology consulting, mineral dressing test, mine design, equipment manufacture and procurement, engineering construction, installation & debugging, worker training, standard reached and operating management. More than 500 mineral processing plants were completed by Xinhai, which made it the largest mineral processing EPC provider in China. Now, Xinhai has become the pioneer and leader of mineral processing EPC service in China with rich technology and experience.
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Copper Ores An ore is a rock containing enough valuable mineral to make it worth extracting. In the case of copper, it is worth extracting when there is about 2 kg of copper per 1,000 kg of ore (0.2%). Copper minerals are found in over one hundred varieties, although only a few have been worked for copper
Chalcopyrite (also known as copper pyrites) and similar sulfide ores are the commonest ores of copper. The ores typically contain low percentages of copper and have to be concentrated before refining (e.g., via froth flotation). Figure 1: Chalcopyrite extracted from Zacatecas, Mexico.
The copper extracted from this process is mixed with the slag and is called Matte Copper due to its texture and appearance. This mainly consists of Cu2S which is reduced to pure metal by blasting Matte Copper with air. The sulphur dioxide escapes the copper
Oxide ores are generally processed using hydrometallurgy. This process uses aqueous (water based) solutions to extract and purify copper from copper oxide ores at ordinary temperatures, usually in three steps: heap leaching, solvent extraction, and electrowinning.
Copper processing, the extraction of copper from its ores and the preparation of copper metal or chemical compounds for use in various products. In its pure form or as an alloy, copper (Cu) is one of the most important metals in society. The pure metal has a face centred cubic crystal structure, and
Ores near the surface can be quarried after removal of the surface layers. The ore is treated with dilute sulfuric acid. This trickles slowly through the ore dissolving copper to form copper sulfate. The copper is recovered by electrolytic refining.
Purification of copper When copper is made from sulphide ores by the first method above, it is impure. The blister copper is first treated to remove any remaining sulphur (trapped as bubbles of sulphur dioxide in the copperhence "blister copper") and then cast into anodes for refining using electrolysis.
Xinhai owns 58 R&D people and 194 patents for invention and utility models. Besides, we have conducted the strategic cooperation with many domestic upstream and downstream enterprises.
Based on 20-year experience in mineral processing equipment manufacturing and mineral processing EPC service, we can provide customized services according to clients' practical requirements.